/* ==========================================================================
   GAT ACADEMY — HIGH-CONVERTING EDTECH DESIGN SYSTEM (LUXURY & AUTHORITY)
   Concept: Nguyen Tat Kiem (AI Plus) Design System — Refined & Scaled Typography
   Core Theme: Midnight Navy (#06101E - #102B56) + Vivid Cyan (#38BDF8) + Amber Gold (#F59E0B)
   Typography: Montserrat (Google Fonts) — Large, High-Contrast & Legible
   NO EMOJIS — Pure, Clean, Elegant Academic & Executive Visuals
   ========================================================================== */

:root {
  /* Colors */
  --bg-navy-darker: #06101e;
  --bg-navy-dark: #0b1e3d;
  --bg-navy-mid: #102b56;
  --bg-navy-card: #132a52;
  --bg-light-blue: #ebf3fa;
  --bg-light-gray: #f1f5f9;

  --color-cyan: #38bdf8;
  --color-cyan-glow: rgba(56, 189, 248, 0.45);
  --color-blue-primary: #2563eb;
  --color-blue-dark: #1d4ed8;

  --color-amber: #f59e0b;
  --color-amber-light: #fbbf24;
  --color-amber-glow: rgba(245, 158, 11, 0.55);

  --color-red: #ef4444;
  --color-red-soft: #fee2e2;
  --color-green: #10b981;
  --color-green-soft: #d1fae5;

  --white: #ffffff;
  --text-dark: #091325;
  --text-slate: #24334a;
  --text-muted: #53647d;
  --text-light-muted: #94a3b8;
  --border-light: #cbd5e1;
  --border-dark: rgba(56, 189, 248, 0.25);

  /* Font */
  --font-main: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Shadows */
  --shadow-sm: 0 2px 5px rgba(6, 16, 30, 0.07);
  --shadow-md: 0 6px 16px rgba(6, 16, 30, 0.1);
  --shadow-lg: 0 12px 28px rgba(6, 16, 30, 0.14);
  --shadow-xl: 0 24px 48px rgba(6, 16, 30, 0.2);
  --shadow-amber: 0 8px 25px rgba(245, 158, 11, 0.45);
  --shadow-cyan-glow: 0 0 30px rgba(56, 189, 248, 0.35);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 26px;
  --radius-pill: 9999px;

  /* Transitions */
  --transition: all 0.25s ease-in-out;
}

/* ==========================================================================
   RESETS & GLOBAL SETUP — ENLARGED BASE TYPOGRAPHY
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 17px; /* Enlarged base size */
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--font-main);
  background-color: var(--white);
  color: var(--text-slate);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
  position: relative;
  padding-top: 84px;
  padding-bottom: 0;
}

@media (min-width: 768px) {
  body {
    padding-top: 56px;
    padding-bottom: 0;
  }
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 14px;
}

@media (min-width: 480px) {
  .container {
    padding: 0 20px;
  }
}

@media (min-width: 768px) {
  .container {
    padding: 0 28px;
  }
}

/* ==========================================================================
   KEYFRAME ANIMATIONS (HIỆU ỨNG CHUYỂN ĐỘNG & NHẤP NHÁY SANG TRỌNG)
   ========================================================================== */
@keyframes btn-shine {
  0% { left: -75%; }
  35% { left: 140%; }
  100% { left: 140%; }
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
  70% { transform: scale(1.15); box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

@keyframes pulse-amber {
  0% { transform: scale(1); box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45); }
  50% { transform: scale(1.02); box-shadow: 0 8px 30px rgba(245, 158, 11, 0.7); }
  100% { transform: scale(1); box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45); }
}

/* ==========================================================================
   TOP URGENCE BAR (DESKTOP: 1 HÀNG DUY NHẤT • MOBILE: 2 HÀNG KHÔNG TRÀN CHỮ)
   ========================================================================== */
.top-urgency-bar {
  background: rgba(3, 14, 34, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--white);
  padding: 10px 24px;
  text-align: center;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 99999;
  border-bottom: 1px solid rgba(56, 189, 248, 0.25);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.65);
}

.top-urgency-bar__inner {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 22px;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
  flex-wrap: nowrap;
}

/* DÒNG 1: THÔNG BÁO ƯU ĐÃI CHUẨN THẦY KIỂM (MIỄN PHÍ VÀNG KIM + CHỮ TRẮNG TO RÕ) */
.top-bar-highlight {
  color: #ffffff;
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.25;
  white-space: nowrap !important;
  text-align: center;
  letter-spacing: -0.1px;
}

.top-bar-highlight .highlight-gold {
  color: #fbbf24;
  font-weight: 800;
  text-shadow: 0 0 12px rgba(251, 191, 36, 0.5);
}

/* DÒNG 2: 4 Ô ĐẾM NGƯỢC TO RÕ + LINK GIỮ SUẤT VÀNG GẠCH CHÂN CHUẨN THẦY KIỂM */
.top-countdown-group {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  flex-wrap: nowrap !important;
}

.top-cd-digit-box {
  background: linear-gradient(180deg, #102d63 0%, #0a1b3c 100%);
  border: 1.5px solid #2563eb;
  color: #ffffff;
  font-size: 20px;
  font-weight: 800;
  width: 40px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 7px;
  text-align: center;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, monospace;
  font-variant-numeric: tabular-nums;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  line-height: 1;
}

/* NÚT BẤM GIỮ SUẤT NGAY (VÀNG HOÀNG KIM • HIỆU ỨNG NHẤP NHÁY PHÁT SÁNG) */
@keyframes cta-blink-pulse {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(251, 191, 36, 0.75), 0 3px 12px rgba(245, 158, 11, 0.5);
    filter: brightness(1);
  }
  35% {
    transform: scale(1.05);
    box-shadow: 0 0 0 6px rgba(251, 191, 36, 0), 0 5px 22px rgba(251, 191, 36, 0.95);
    filter: brightness(1.15);
  }
  65% {
    transform: scale(0.98);
    box-shadow: 0 0 0 0 rgba(251, 191, 36, 0), 0 2px 8px rgba(245, 158, 11, 0.35);
    filter: brightness(0.95);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(251, 191, 36, 0.75), 0 3px 12px rgba(245, 158, 11, 0.5);
    filter: brightness(1);
  }
}

.top-cd-action-link {
  background: linear-gradient(135deg, #fde047 0%, #f59e0b 55%, #d97706 100%);
  color: #041026 !important;
  font-weight: 800;
  font-size: 14.5px;
  text-decoration: none !important;
  padding: 8px 18px;
  border-radius: 9999px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap !important;
  margin-left: 10px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  box-shadow: 0 3px 12px rgba(245, 158, 11, 0.5);
  cursor: pointer;
  letter-spacing: 0.1px;
  animation: cta-blink-pulse 1.6s infinite ease-in-out;
  transition: transform 0.2s ease, filter 0.2s ease, box-shadow 0.2s ease;
}

.top-cd-action-link:hover {
  transform: scale(1.07);
  filter: brightness(1.2);
  box-shadow: 0 0 24px rgba(251, 191, 36, 0.95);
  color: #020817 !important;
}

@media (max-width: 767px) {
  .top-urgency-bar {
    padding: 10px 8px 12px;
  }
  .top-urgency-bar__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    max-width: 100%;
    padding: 0;
  }
  /* HÀNG 1 MOBILE: KHÔNG BAO GIỜ TRÀN CHỮ (VỪA VẶN MỌI MÀN HÌNH TỪ 340PX) */
  .top-bar-highlight {
    font-size: clamp(11px, 3.15vw, 13.2px);
    width: 100%;
    max-width: 100%;
    text-align: center;
    line-height: 1.25;
    white-space: nowrap !important;
    display: block;
    letter-spacing: -0.25px;
  }
  /* HÀNG 2 MOBILE: 4 Ô ĐẾM NGƯỢC TO RÕ (19PX) + NÚT BẤM VÀNG NHẤP NHÁY NẰM TRÊN 1 HÀNG DUY NHẤT */
  .top-countdown-group {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 100%;
    max-width: 100%;
    flex-wrap: nowrap !important;
  }
  .top-cd-digit-box {
    font-size: 19px;
    font-weight: 800;
    width: 38px;
    height: 38px;
    padding: 0;
    min-width: 38px;
    border-radius: 6.5px;
    border: 1.5px solid #2563eb;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    line-height: 1;
  }
  .top-cd-action-link {
    font-size: 13.5px;
    font-weight: 800;
    padding: 6.5px 14px;
    margin-left: 8px;
    white-space: nowrap !important;
    flex-shrink: 0;
    line-height: 1.2;
    text-decoration: none !important;
    border-radius: 9999px;
  }
}

/* ==========================================================================
   BUTTONS (NÚT BẤM VÀNG CAM HOÀNG KIM)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 32px;
  border-radius: var(--radius-md);
  font-weight: 800;
  font-size: 17.5px;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-align: center;
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn--primary {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #d97706 100%);
  color: #06101e;
  box-shadow: var(--shadow-amber);
  animation: pulse-amber 3.2s infinite ease-in-out;
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(245, 158, 11, 0.65);
  background: linear-gradient(135deg, #fde68a 0%, #fbbf24 50%, #f59e0b 100%);
}

.btn--primary::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -75%;
  width: 50%;
  height: 200%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
  transform: rotate(25deg);
  animation: btn-shine 3.2s infinite;
}

.btn--full {
  width: 100%;
}

.btn--lg {
  padding: 20px 36px;
  font-size: 18px;
}

/* ==========================================================================
   HERO SECTION (CHUẨN BỐ CỤC & ÁNH SÁNG NGHỆ THUẬT THẦY KIỂM)
   ========================================================================== */
.hero-section {
  background: radial-gradient(ellipse 95% 75% at 22% 32%, #183e78 0%, #112e5c 42%, #0a1c3b 100%);
  color: var(--white);
  padding: 48px 0 68px;
  position: relative;
  overflow: hidden;
}

.hero-bg-waves {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.hero-waves-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.hero-glow--left {
  width: 680px;
  height: 520px;
  top: 5%;
  left: -120px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.28) 0%, rgba(37, 99, 235, 0.14) 50%, transparent 72%);
  filter: blur(85px);
}

.hero-glow--right {
  width: 650px;
  height: 600px;
  top: 10%;
  right: -100px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.38) 0%, rgba(56, 189, 248, 0.16) 50%, transparent 75%);
  filter: blur(80px);
}

@media (max-width: 767px) {
  .hero-glow--left {
    width: 320px;
    height: 320px;
    left: -40px;
  }
  .hero-glow--right {
    width: 300px;
    height: 300px;
    right: -40px;
  }
}

.hero-section .container {
  position: relative;
  z-index: 1;
}

.hero-grid {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

@media (min-width: 1024px) {
  .hero-section {
    padding: 55px 0 75px;
  }
  .hero-grid {
    display: grid;
    grid-template-columns: 59% 41%;
    align-items: center;
    gap: 48px;
  }
}

.hero-content {
  text-align: center;
}

@media (min-width: 1024px) {
  .hero-content {
    text-align: left;
  }
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(56, 189, 248, 0.14);
  border: 1.5px solid var(--color-cyan);
  color: var(--color-cyan);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
}

.hero-pill-badge .badge-dot {
  color: var(--color-cyan);
  font-size: 13px;
  line-height: 1;
}

/* ==========================================================================
   TÊN KHÓA HỌC CHỦ ĐẠO (CHUẨN THẦY NGUYỄN TẤT KIỂM - AI SUPER POWER)
   ========================================================================== */
.hero-course-title {
  font-family: var(--font-main);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1.14;
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}

.hero-course-title .title-row-1 {
  display: block;
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  white-space: nowrap;
}

.hero-course-title .title-white {
  color: #ffffff;
  font-weight: 900;
}

.hero-course-title .title-ice {
  color: #c0e9f8;
  font-weight: 900;
  text-shadow: 0 0 24px rgba(192, 233, 248, 0.4);
}

.hero-course-title .title-cyan {
  display: block;
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  font-weight: 900;
  white-space: nowrap;
  margin-top: 4px;
  background: linear-gradient(90deg, #32d2fb 0%, #4ed5f9 40%, #75daf7 75%, #bae6fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: #32d2fb;
  filter: drop-shadow(0 0 18px rgba(50, 210, 251, 0.45));
}

@media (max-width: 767px) {
  .hero-pill-badge {
    font-size: 10.5px;
    padding: 5px 12px;
    letter-spacing: 0.2px;
    margin-bottom: 14px;
    white-space: normal;
    text-align: center;
  }
  .hero-course-title {
    margin-bottom: 16px;
    line-height: 1.15;
  }
  .hero-course-title .title-row-1,
  .hero-course-title .title-cyan {
    font-size: clamp(26px, 7.8vw, 35px);
    line-height: 1.15;
    letter-spacing: -0.5px;
  }
}

.hero-hook-gold {
  color: #fbbf24;
  font-weight: 800;
  font-size: 1.12rem;
  display: inline-block;
  margin-bottom: 8px;
  letter-spacing: -0.2px;
}

@media (min-width: 768px) {
  .hero-hook-gold {
    font-size: 1.25rem;
  }
}

.hero-desc {
  font-size: 16px;
  color: #cbd5e1;
  line-height: 1.65;
  margin-bottom: 22px;
}

@media (min-width: 768px) {
  .hero-desc {
    font-size: 16.5px;
  }
}

.hero-checklist {
  display: flex;
  flex-direction: column;
  gap: 13px;
  margin-bottom: 26px;
  text-align: left;
}

.hero-check-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15.5px;
  color: #f1f5f9;
  line-height: 1.45;
}

.hero-check-svg {
  flex-shrink: 0;
  filter: drop-shadow(0 0 6px rgba(56, 189, 248, 0.45));
}

/* 3 CHỈ SỐ UY TÍN (70.000+ / 10.000+ / 5.000+ CHUYÊN GIA) */
.hero-stats-row {
  display: grid;
  grid-template-columns: 0.95fr 1.15fr 1.35fr;
  gap: 16px;
  margin-top: 26px;
  border-top: none;
  padding-top: 0;
}

.hero-stat-item {
  text-align: left;
}

.hero-stat-num {
  font-size: clamp(1.9rem, 2.7vw, 2.45rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 4px;
  letter-spacing: -0.5px;
}

.hero-stat-label {
  font-size: 13.5px;
  color: #94a3b8;
  line-height: 1.35;
  font-weight: 500;
}

@media (max-width: 767px) {
  .hero-waves-svg {
    opacity: 0.35;
    transform: translateY(100px);
  }
  .hero-stats-row {
    grid-template-columns: repeat(3, 1fr);
    text-align: center;
    gap: 6px;
    margin-top: 18px;
    padding: 0;
  }
  .hero-stat-item {
    text-align: center;
  }
  .hero-stat-num {
    font-size: 1.35rem;
    margin-bottom: 2px;
  }
  .hero-stat-label {
    font-size: 10.5px;
    line-height: 1.25;
  }
}

.hero-tag-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13.5px;
  color: var(--text-light-muted);
}

@media (min-width: 1024px) {
  .hero-tag-bar {
    justify-content: flex-start;
  }
}

.hero-tag-bar span.dot {
  color: var(--color-cyan);
  font-weight: 800;
}

/* ==========================================================================
   FLOATING LEAD CARD (FORM ĐĂNG KÝ VIP)
   ========================================================================== */
.lead-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 48px -12px rgba(0, 0, 0, 0.5);
  border: 2px solid var(--color-cyan);
}

.lead-card__header {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  color: var(--white);
  padding: 18px 22px;
  text-align: center;
  border-bottom: 1.5px solid rgba(56, 189, 248, 0.35);
}

.price-original-line {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: line-through;
  margin-bottom: 2px;
  font-weight: 600;
}

.price-free-headline {
  font-size: 1.68rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1.25;
}

.price-free-headline .highlight-gold {
  color: #fde047;
  text-shadow: 0 0 14px rgba(253, 224, 71, 0.45);
}

.lead-card__body {
  padding: 24px 22px;
  color: var(--text-dark);
}

.form-header-title {
  text-align: center;
  margin-bottom: 18px;
}

.form-header-title h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.form-header-title p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.45;
}

.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.form-label .req {
  color: var(--color-red);
}

.form-input {
  width: 100%;
  padding: 15px 18px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border-light);
  font-size: 15.5px;
  color: var(--text-dark);
  background-color: #f8fafc;
  transition: var(--transition);
  min-height: 52px; /* Large touch target */
}

.form-input:focus {
  outline: none;
  border-color: var(--color-blue-primary);
  background-color: var(--white);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

.checkbox-heading {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.checkbox-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 22px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-slate);
  background: #f8fafc;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  cursor: pointer;
  transition: var(--transition);
}

.checkbox-item:hover {
  background: var(--bg-light-blue);
  border-color: #bae6fd;
}

.checkbox-item input[type="checkbox"] {
  accent-color: var(--color-blue-primary);
  width: 18px;
  height: 18px;
  cursor: pointer;
  flex-shrink: 0;
}

/* ==========================================================================
   FORM COUNTDOWN BOX (HIỆU ỨNG ĐỒNG HỒ CAO CẤP • TẠO CẢM GIÁC CỰC KỲ KHẨN CẤP)
   ========================================================================== */
@keyframes pulse-radar {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
  70% { transform: scale(1.15); box-shadow: 0 0 0 7px rgba(239, 68, 68, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

@keyframes seconds-glow {
  0%, 100% {
    border-color: rgba(245, 158, 11, 0.45);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.45), 0 0 6px rgba(245, 158, 11, 0.25);
  }
  50% {
    border-color: #f59e0b;
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.45), 0 0 12px rgba(245, 158, 11, 0.55);
  }
}

.lead-card-countdown {
  background: linear-gradient(180deg, #07152b 0%, #0a1b38 100%);
  border-radius: 14px;
  padding: 15px 14px 13px;
  margin-top: 18px;
  text-align: center;
  border: 1px solid rgba(56, 189, 248, 0.25);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  position: relative;
  overflow: hidden;
}

.lead-card-countdown::before {
  content: "";
  position: absolute;
  top: 0;
  left: 15%;
  right: 15%;
  height: 1px;
  background: linear-gradient(90deg, transparent, #38bdf8, transparent);
  opacity: 0.6;
}

.countdown-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-size: 12px;
  color: #fde047;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 11px;
  text-shadow: 0 0 10px rgba(253, 224, 71, 0.35);
}

.cd-pulse-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #ef4444;
  animation: pulse-radar 1.5s infinite;
  flex-shrink: 0;
}

.countdown-digits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.countdown-col {
  background: linear-gradient(180deg, #132747 0%, #0c1c38 49%, #081329 51%, #0b1a36 100%);
  border-radius: 9px;
  padding: 8px 4px 6px;
  border: 1px solid rgba(56, 189, 248, 0.22);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* Đường rãnh phân tách kiểu đồng hồ cơ học sang trọng */
.countdown-col::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: rgba(0, 0, 0, 0.55);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
  pointer-events: none;
}

.countdown-col--active {
  border-color: #f59e0b;
  animation: seconds-glow 1s infinite ease-in-out;
}

.countdown-num {
  font-size: 22px;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.05;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, monospace;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.5px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
  z-index: 1;
}

.countdown-col--active .countdown-num {
  color: #fef08a;
  text-shadow: 0 0 12px rgba(250, 204, 21, 0.6);
}

.countdown-unit {
  font-size: 10px;
  color: #94a3b8;
  text-transform: uppercase;
  margin-top: 5px;
  font-weight: 700;
  letter-spacing: 0.5px;
  z-index: 1;
}

.countdown-col--active .countdown-unit {
  color: #fcd34d;
}

.countdown-urgency-note {
  font-size: 11px;
  color: #94a3b8;
  margin-top: 10px;
  line-height: 1.35;
  letter-spacing: -0.1px;
}

.countdown-urgency-note strong {
  color: #fde047;
  font-weight: 800;
}

.security-note {
  font-size: 12.5px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

/* ==========================================================================
   STATS BAR (LƯỚI 2x2 TRÊN MOBILE / 4 CỘT DESKTOP)
   ========================================================================== */
.stats-bar {
  background: var(--bg-navy-dark);
  border-top: 1px solid var(--border-dark);
  border-bottom: 1px solid var(--border-dark);
  padding: 24px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
}

.stat-box {
  text-align: center;
  color: var(--white);
  padding: 8px;
}

.stat-val {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--color-cyan);
  line-height: 1.1;
  margin-bottom: 4px;
}

.stat-desc {
  font-size: 13.5px;
  color: #cbd5e1;
  font-weight: 600;
}

/* ==========================================================================
   SECTION COMMON
   ========================================================================== */
.section {
  padding: 64px 0;
}

@media (min-width: 768px) {
  .section {
    padding: 85px 0;
  }
}

.section--white,
.section--curriculum {
  background-color: #ffffff !important;
  color: var(--text-slate);
}

.section--alt {
  background-color: var(--bg-light-gray);
}

.section--dark {
  background: var(--bg-navy-dark);
  color: var(--white);
}

.section-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 20px;
}

@media (min-width: 768px) {
  .section-header {
    margin-bottom: 28px;
  }
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-blue-primary);
  margin-bottom: 10px;
}

.section--dark .section-tag {
  color: var(--color-cyan);
}

.section-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.35;
  margin-bottom: 14px;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.25rem;
  }
}

.section--dark .section-title {
  color: var(--white);
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.65;
}

.br-mobile {
  display: none;
}

@media (max-width: 767px) {
  .br-mobile {
    display: block;
  }
  .section-title--feedback-mobile {
    font-size: clamp(1.2rem, 5.2vw, 1.65rem) !important;
    line-height: 1.35 !important;
  }
  .section-title--curriculum {
    font-size: clamp(1.2rem, 5vw, 1.65rem) !important;
    line-height: 1.35 !important;
    white-space: normal !important;
    letter-spacing: -0.3px !important;
  }
}

/* TRIẾT LÝ GAT ACADEMY */
.gat-principle-box {
  background: var(--bg-light-blue);
  border: 1.5px solid #bae6fd;
  border-radius: var(--radius-md);
  padding: 24px 28px;
  max-width: 900px;
  margin: 36px auto 0;
  text-align: center;
}

.gat-principle-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--bg-navy-dark);
  margin-bottom: 8px;
}

.gat-principle-desc {
  font-size: 15px;
  color: var(--text-slate);
  line-height: 1.65;
  margin: 0;
}

@media (max-width: 767px) {
  .gat-principle-box {
    padding: 16px 10px;
    margin: 24px auto 0;
  }
  .gat-principle-title {
    font-size: clamp(11.8px, 3.6vw, 15px) !important;
    white-space: nowrap !important;
    letter-spacing: -0.25px !important;
  }
  .gat-principle-desc {
    font-size: 13.5px;
    line-height: 1.55;
  }
}

.section--dark .section-subtitle {
  color: #cbd5e1;
}

/* ==========================================================================
   PAIN POINTS SECTION (THIẾT KẾ GỌN GÀNG CHUẨN BÊN THẦY KIỂM)
   ========================================================================== */
.section--pain-ntk {
  background: #f0f7ff;
  padding: 50px 0 60px;
}

@media (min-width: 768px) {
  .section--pain-ntk {
    padding: 70px 0 80px;
  }
}

.pain-ntk-wrapper {
  max-width: 660px;
  margin: 0 auto;
}

.pain-ntk-header {
  text-align: center;
  margin-bottom: 24px;
}

.pain-ntk-badge {
  display: inline-block;
  background: #e0f2fe;
  color: #0284c7;
  font-size: 12.5px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 6px 18px;
  border-radius: 9999px;
  margin-bottom: 12px;
}

.pain-ntk-title {
  font-size: clamp(1.45rem, 3.8vw, 1.95rem);
  font-weight: 800;
  color: #0b1c3d;
  line-height: 1.35;
  margin: 0;
  letter-spacing: -0.3px;
}

.pain-ntk-title .highlight-blue {
  color: #1d4ed8;
}

.pain-ntk-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 22px;
}

.pain-ntk-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 13px 18px;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.04);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.pain-ntk-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.09);
  border-color: #93c5fd;
}

.pain-ntk-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.28);
  flex-shrink: 0;
}

.pain-ntk-text {
  font-size: 15px;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.45;
}

@media (max-width: 480px) {
  .pain-ntk-card {
    padding: 12px 14px;
    gap: 12px;
  }
  .pain-ntk-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border-radius: 10px;
  }
  .pain-ntk-icon svg {
    width: 20px;
    height: 20px;
  }
  .pain-ntk-text {
    font-size: 14px;
    line-height: 1.4;
  }
}

/* CALLOUT BANNER CHUẨN THẦY KIỂM (DARK NAVY GRADIENT + GOLD HIGHLIGHT + YELLOW CTA) */
.pain-ntk-callout {
  background: linear-gradient(180deg, #07193b 0%, #0c2b5c 100%);
  border: 1px solid rgba(56, 189, 248, 0.28);
  border-radius: 18px;
  padding: 24px 20px;
  text-align: center;
  box-shadow: 0 10px 28px rgba(7, 24, 56, 0.22);
}

@media (min-width: 768px) {
  .pain-ntk-callout {
    padding: 32px 34px;
  }
}

.pain-ntk-callout-desc {
  font-size: 15px;
  line-height: 1.65;
  color: #f1f5f9;
  margin: 0 0 18px 0;
  font-weight: 500;
}

.pain-ntk-callout-desc .highlight-gold-bold {
  color: #facc15;
  font-weight: 900;
  letter-spacing: 0.2px;
}

.pain-ntk-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, #ffc72c 0%, #e5a400 100%);
  color: #0a192f;
  font-weight: 800;
  font-size: 15.5px;
  padding: 13px 34px;
  border-radius: 9999px;
  text-decoration: none;
  box-shadow: 0 4px 18px rgba(234, 179, 8, 0.42);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  letter-spacing: 0.3px;
  animation: cta-blink-pulse 2.2s infinite ease-in-out;
}

.pain-ntk-cta-btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 24px rgba(234, 179, 8, 0.55);
  color: #000000;
}

/* ==========================================================================
   OUTCOMES SECTION (BẠN SẼ THAY ĐỔI NHƯ THẾ NÀO SAU KHÓA HỌC NÀY?)
   ========================================================================== */
.section--outcomes {
  background: #ffffff;
  padding: 55px 0 65px;
}

@media (min-width: 768px) {
  .section--outcomes {
    padding: 75px 0 85px;
  }
}

.section-tag--pill {
  background: #e0f2fe;
  color: #0284c7;
  padding: 6px 18px;
  border-radius: 9999px;
  letter-spacing: 0.8px;
  font-weight: 800;
  display: inline-block;
  margin-bottom: 12px;
}

.outcomes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  max-width: 980px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .outcomes-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

.outcome-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: #ffffff;
  border: 1.5px solid #e2e8f0;
  border-radius: 16px;
  padding: 18px 20px;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.03);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.outcome-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 22px rgba(37, 99, 235, 0.08);
  border-color: #93c5fd;
}

.outcome-icon {
  width: 46px;
  height: 46px;
  min-width: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, #0284c7 0%, #1d4ed8 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.28);
  flex-shrink: 0;
  margin-top: 2px;
}

.outcome-content {
  flex-grow: 1;
}

.outcome-content h4 {
  font-size: 15.5px;
  font-weight: 800;
  color: #0b1c3d;
  line-height: 1.35;
  margin-bottom: 5px;
}

.outcome-content p {
  font-size: 14px;
  color: #475569;
  line-height: 1.55;
  margin: 0;
}

.outcomes-highlight-box {
  max-width: 820px;
  margin: 28px auto 0;
  background: #f0f9ff;
  border: 1px dashed #38bdf8;
  border-radius: 14px;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 14.5px;
  font-weight: 600;
  color: #0369a1;
  text-align: center;
  line-height: 1.5;
}

.outcomes-highlight-box .star-icon {
  font-size: 18px;
  flex-shrink: 0;
}

@media (max-width: 480px) {
  .outcome-card {
    padding: 14px 14px;
    gap: 12px;
  }
  .outcome-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border-radius: 10px;
  }
  .outcome-icon svg {
    width: 20px;
    height: 20px;
  }
  .outcome-content h4 {
    font-size: 14.5px;
  }
  .outcome-content p {
    font-size: 13px;
    line-height: 1.45;
  }
  .outcomes-highlight-box {
    font-size: 12.5px;
    padding: 12px 14px;
  }
}

/* THU HẸP KHOẢNG TRẮNG GIỮA PHẦN GIÁ TRỊ CHUYỂN HÓA VÀ LỘ TRÌNH HỌC */
.section--outcomes {
  padding-bottom: 12px;
}

.section--curriculum {
  padding-top: 24px;
}

@media (min-width: 768px) {
  .section--outcomes {
    padding-bottom: 16px;
  }
  .section--curriculum {
    padding-top: 32px;
  }
}

/* ==========================================================================
   CURRICULUM SECTION (LỘ TRÌNH 3 BUỔI HỌC)
   ========================================================================== */
.curriculum-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
  max-width: 900px;
  margin: 0 auto;
}

.session-strip {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: var(--transition);
}

@media (min-width: 768px) {
  .session-strip {
    flex-direction: row;
  }
}

.session-strip:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: #38bdf8;
}

.session-col-number {
  background: linear-gradient(135deg, var(--bg-navy-dark) 0%, var(--bg-navy-mid) 100%);
  color: var(--color-cyan);
  padding: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .session-col-number {
    width: 160px;
    flex-direction: column;
    justify-content: center;
    text-align: center;
    padding: 26px 18px;
    flex-shrink: 0;
  }
}

.session-num-large {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1;
}

.session-col-number span.tag {
  font-size: 12px;
  font-weight: 800;
  background: rgba(56, 189, 248, 0.2);
  color: var(--white);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
}

@media (min-width: 768px) {
  .session-col-number span.tag {
    margin-top: 10px;
  }
}

.session-col-info {
  padding: 24px 22px;
  flex-grow: 1;
}

.session-col-info h4 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.session-hook-question {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-blue-primary);
  margin-bottom: 14px;
  font-style: italic;
}

.session-bullets {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.session-bullet-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text-slate);
  line-height: 1.55;
}

.session-bullet-item span.c-icon {
  color: var(--color-green);
  font-weight: 900;
  font-size: 16px;
}

/* ==========================================================================
   INSTRUCTOR PROFILE SECTION (MASTER COACH GIA TRANG - CHUẨN THẦY KIỂM)
   ========================================================================== */
.section--instructor-ntk {
  background: linear-gradient(180deg, #07152b 0%, #0a1f44 50%, #061329 100%);
  color: #ffffff;
  padding: 65px 0 75px;
  position: relative;
  overflow: hidden;
}

.section--instructor-ntk::before {
  content: "";
  position: absolute;
  top: 15%;
  left: 5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.16) 0%, rgba(37, 99, 235, 0.08) 50%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
}

.ntk-instructor-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
  position: relative;
  z-index: 1;
}

@media (min-width: 992px) {
  .ntk-instructor-layout {
    grid-template-columns: 44% 56%;
    gap: 48px;
  }
}

/* CỘT TRÁI: ẢNH TÁCH NỀN & BADGE VÁT GÓC */
.ntk-instructor-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
}

.ntk-instructor-img-wrap {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.ntk-instructor-img-wrap::before {
  content: "";
  position: absolute;
  top: 38%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.35) 0%, rgba(37, 99, 235, 0.12) 50%, transparent 70%);
  filter: blur(50px);
  border-radius: 50%;
  z-index: 0;
  pointer-events: none;
}

.ntk-instructor-img {
  width: 100%;
  max-width: 450px;
  height: auto;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 15px 35px rgba(2, 132, 199, 0.28));
  transition: transform 0.3s ease;
  mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
  position: relative;
  z-index: 1;
}

.ntk-instructor-img-wrap:hover .ntk-instructor-img {
  transform: scale(1.02);
}

/* BADGE VÁT GÓC CHUẨN THẦY KIỂM (SLANTED TRAPEZOID BADGE) */
.ntk-speaker-badge {
  position: absolute;
  bottom: 8px;
  background: rgba(7, 24, 54, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1.5px solid #00d2ff;
  box-shadow: 0 0 20px rgba(0, 210, 255, 0.35), 0 8px 24px rgba(0, 0, 0, 0.6);
  clip-path: polygon(8% 0%, 100% 0%, 92% 100%, 0% 100%);
  padding: 10px 30px 10px 34px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  z-index: 3;
}

.ntk-speaker-badge .badge-role {
  font-size: 11px;
  font-weight: 800;
  color: #38bdf8;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.ntk-speaker-badge .badge-name {
  font-size: 17.5px;
  font-weight: 900;
  color: #ffffff;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* CỘT PHẢI: HEADER VẠCH CYAN + DANH SÁCH THÀNH TỰU */
.ntk-instructor-details {
  width: 100%;
}

.ntk-speaker-header {
  display: flex;
  align-items: stretch;
  gap: 16px;
  margin-bottom: 24px;
}

.ntk-speaker-bar {
  width: 4px;
  min-width: 4px;
  background: linear-gradient(180deg, #00d2ff 0%, #2563eb 100%);
  border-radius: 4px;
  box-shadow: 0 0 10px rgba(0, 210, 255, 0.5);
}

.ntk-speaker-title-wrap {
  display: flex;
  flex-direction: column;
}

.ntk-speaker-tag {
  font-size: 14px;
  font-weight: 800;
  color: #38bdf8;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.ntk-speaker-name {
  font-size: clamp(1.8rem, 3.2vw, 2.35rem);
  font-weight: 900;
  color: #ffffff;
  letter-spacing: -0.3px;
  line-height: 1.15;
  margin: 0 0 6px 0;
  text-transform: uppercase;
}

.ntk-speaker-sub {
  font-size: 15px;
  color: #93c5fd;
  font-weight: 500;
  margin: 0;
}

/* BULLETS CHECKLIST CHUẨN THẦY KIỂM */
.ntk-speaker-bullets {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ntk-bullet-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  line-height: 1.55;
  color: #cbd5e1;
}

.ntk-bullet-check {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  filter: drop-shadow(0 0 6px rgba(56, 189, 248, 0.45));
}

.ntk-bullet-content {
  flex-grow: 1;
}

.ntk-bullet-content strong {
  color: #ffffff;
  font-weight: 800;
}

.ntk-bullet-content em {
  color: #fde047;
  font-style: normal;
}

/* RESPONSIVE MOBILE CHUẨN THẦY KIỂM (IMAGE 4) */
@media (max-width: 991px) {
  .ntk-instructor-layout {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  .ntk-instructor-details {
    display: contents;
  }
  .ntk-speaker-header {
    order: 1;
    width: 100%;
    margin-bottom: 14px;
    gap: 12px;
  }
  .ntk-speaker-tag {
    font-size: 12.5px;
  }
  .ntk-speaker-name {
    font-size: clamp(15px, 4.7vw, 21px) !important;
    white-space: nowrap !important;
    letter-spacing: -0.3px;
  }
  .ntk-speaker-sub {
    font-size: 13.5px;
  }
  .ntk-instructor-visual {
    order: 2;
    max-width: 330px;
    margin: 4px auto 14px;
  }
  .ntk-instructor-img-wrap::before {
    width: 260px;
    height: 260px;
    filter: blur(40px);
  }
  .ntk-speaker-badge {
    bottom: 6px;
    padding: 8px 20px 8px 24px;
  }
  .ntk-speaker-badge .badge-role {
    font-size: 9.5px;
  }
  .ntk-speaker-badge .badge-name {
    font-size: 14.5px;
  }
  .ntk-speaker-bullets {
    order: 3;
    width: 100%;
    gap: 12px;
  }
  .ntk-bullet-row {
    font-size: 14px;
    line-height: 1.5;
  }
  .section--instructor-ntk {
    padding: 50px 0 60px;
  }
}

/* ==========================================================================
   SECTION: BẰNG CHỨNG SỰ KIỆN HỘI TRƯỜNG THỰC TẾ (LIGHT THEME - NỀN SÁNG CAO CẤP)
   ========================================================================== */
.section--events-gallery {
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 50%, #edf4fc 100%);
  padding: 44px 0 48px;
  position: relative;
  border-top: 1px solid #e2e8f0;
  border-bottom: 1px solid #e2e8f0;
}

@media (max-width: 767px) {
  .section--events-gallery {
    padding: 26px 0 28px;
  }
}

.events-gallery-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 24px;
}

@media (max-width: 767px) {
  .events-gallery-header {
    margin-bottom: 18px;
  }
}

.events-gallery-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 800;
  color: #0284c7;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin-bottom: 10px;
  background: #e0f2fe;
  border: 1.5px solid #bae6fd;
  padding: 5px 16px;
  border-radius: 9999px;
}

@media (max-width: 767px) {
  .events-gallery-tag {
    font-size: 11px;
    padding: 4px 12px;
  }
}

.events-gallery-title {
  font-size: clamp(1.4rem, 2.6vw, 1.85rem);
  font-weight: 900;
  color: #0b1e3d;
  line-height: 1.3;
  margin: 0 0 8px 0;
  letter-spacing: -0.3px;
}

@media (max-width: 767px) {
  .events-gallery-title {
    font-size: 1.35rem;
    line-height: 1.32;
  }
}

.events-gallery-subtitle {
  font-size: 14.5px;
  color: #475569;
  line-height: 1.55;
  margin: 0 auto;
  max-width: 680px;
}

@media (max-width: 767px) {
  .events-gallery-subtitle {
    font-size: 13.5px;
  }
}

.events-gallery-track-wrap {
  width: 100%;
}

.events-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 991px) {
  .events-gallery-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
}

@media (max-width: 767px) {
  .events-gallery-track-wrap {
    overflow-x: auto;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: 6px 16px 14px;
    margin: 0 -16px;
    scroll-snap-type: x mandatory;
    cursor: grab;
  }

  .events-gallery-track-wrap:active {
    cursor: grabbing;
  }

  .events-gallery-track-wrap::-webkit-scrollbar {
    display: none;
  }

  .events-gallery-grid {
    display: flex;
    flex-wrap: nowrap;
    gap: 14px;
    width: max-content;
  }

  .events-gallery-card {
    width: calc(100vw - 68px);
    max-width: 320px;
    flex-shrink: 0;
    scroll-snap-align: center;
  }
}

/* CHỈ BÁO DOTS MOBILE */
.events-gallery-dots {
  display: none;
}

@media (max-width: 767px) {
  .events-gallery-dots {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
  }

  .eg-dot {
    width: 8px;
    height: 8px;
    border-radius: 9999px;
    background: #cbd5e1;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    cursor: pointer;
  }

  .eg-dot.active {
    width: 24px;
    background: #0284c7;
    box-shadow: 0 0 10px rgba(2, 132, 199, 0.4);
  }
}

.events-gallery-card {
  background: #ffffff;
  border: 1.5px solid #e2e8f0;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(15, 23, 42, 0.06);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.events-gallery-card:hover {
  transform: translateY(-4px);
  border-color: #38bdf8;
  box-shadow: 0 14px 32px rgba(2, 132, 199, 0.14);
}

.events-gallery-img-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: #f1f5f9;
}

.events-gallery-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.events-gallery-card:hover .events-gallery-img-wrap img {
  transform: scale(1.04);
}

.events-gallery-overlay {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 2;
}

.events-gallery-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(11, 30, 61, 0.85);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(56, 189, 248, 0.5);
  color: #38bdf8;
  font-size: 11px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.25);
}

.events-gallery-caption {
  padding: 16px 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: #ffffff;
  border-top: 1px solid #f1f5f9;
}

.events-gallery-caption h5 {
  color: #0f172a;
  font-size: 16px;
  font-weight: 800;
  margin: 0 0 5px 0;
  line-height: 1.35;
}

@media (max-width: 767px) {
  .events-gallery-caption h5 {
    font-size: 15px;
  }
}

.events-gallery-caption p {
  color: #475569;
  font-size: 13.5px;
  line-height: 1.45;
  margin: 0;
}

@media (max-width: 767px) {
  .events-gallery-caption p {
    font-size: 13px;
  }
}

/* ==========================================================================
   FAST ACTION BONUSES (BỘ 3 ĐẶC QUYỀN)
   ========================================================================== */
.bonuses-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

@media (min-width: 768px) {
  .bonuses-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.bonus-box {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 30px 22px;
  box-shadow: var(--shadow-sm);
  border: 1.5px solid var(--border-light);
  text-align: center;
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.bonus-box:hover {
  transform: translateY(-4px);
  border-color: var(--color-cyan);
  box-shadow: var(--shadow-md);
}

.bonus-box--highlight {
  border-color: var(--color-amber);
  background: linear-gradient(180deg, #fffbeb 0%, #ffffff 100%);
}

.bonus-box-pill {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-amber);
  color: #06101e;
  font-size: 11px;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  white-space: nowrap;
}

.bonus-number-tag {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-blue-primary);
  margin-bottom: 12px;
}

.bonus-box h4 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 10px;
  line-height: 1.35;
}

.bonus-box p {
  font-size: 15px;
  color: var(--text-slate);
  line-height: 1.6;
}

/* ==========================================================================
   TARGET AUDIENCE (HƯỚNG 3: THẺ NGANG COMPACT STRIPS)
   ========================================================================== */
.audience-strips-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  max-width: 1060px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .audience-strips-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

.aud-strip-item {
  background: var(--white);
  border: 1.5px solid #e2e8f0;
  border-radius: 14px;
  padding: 16px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.aud-strip-item:hover {
  border-color: #0284c7;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(2, 132, 199, 0.12);
}

.aud-strip-body {
  flex-grow: 1;
  min-width: 0;
}

.aud-strip-title {
  font-size: 16px;
  font-weight: 800;
  color: #0f172a;
  margin: 0 0 4px 0;
  line-height: 1.35;
}

.aud-strip-desc {
  font-size: 13.8px;
  color: #64748b;
  line-height: 1.45;
  margin: 0;
}

.aud-strip-check {
  width: 26px;
  height: 26px;
  min-width: 26px;
  border-radius: 50%;
  background: #f0fdf4;
  border: 1.5px solid #86efac;
  color: #16a34a;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(22, 163, 74, 0.12);
}

@media (max-width: 575px) {
  .aud-strip-item {
    padding: 14px 16px;
    gap: 12px;
  }
  .aud-strip-title {
    font-size: 15px;
  }
  .aud-strip-desc {
    font-size: 13px;
    line-height: 1.4;
  }
  .aud-strip-check {
    width: 22px;
    height: 22px;
    min-width: 22px;
  }
  .aud-strip-check svg {
    width: 12px;
    height: 12px;
  }
}

/* ==========================================================================
   FAQ ACCORDION
   ========================================================================== */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-card {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-light);
  overflow: hidden;
  transition: var(--transition);
}

.faq-card.active {
  border-color: var(--color-blue-primary);
  box-shadow: var(--shadow-sm);
}

.faq-btn {
  width: 100%;
  padding: 20px 22px;
  background: none;
  border: none;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.4;
}

.faq-btn span.arr {
  font-size: 17px;
  color: var(--color-blue-primary);
  transition: var(--transition);
  margin-left: 12px;
  flex-shrink: 0;
}

.faq-card.active .faq-btn span.arr {
  transform: rotate(180deg);
}

.faq-ans {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  padding: 0 22px;
  color: var(--text-slate);
  font-size: 15.5px;
  line-height: 1.65;
}

.faq-card.active .faq-ans {
  max-height: 400px;
  padding-bottom: 22px;
}

/* ==========================================================================
   FOOTER (CHUẨN THẦY NGUYỄN TẤT KIỂM & GAT ACADEMY)
   ========================================================================== */
.footer {
  background: #050d1a;
  color: #94a3b8;
  padding: 70px 0 45px;
  border-top: 1px solid rgba(56, 189, 248, 0.16);
  font-size: 14px;
  position: relative;
  z-index: 10;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: start;
  margin-bottom: 35px;
}

/* CỘT 1: BRAND */
.footer-brand-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.footer-logo {
  height: 46px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(245, 158, 11, 0.3));
}

.footer-brand-text {
  display: flex;
  flex-direction: column;
}

.footer-brand-name {
  font-size: 19px;
  font-weight: 900;
  color: #ffffff;
  letter-spacing: 0.5px;
  line-height: 1.2;
}

.footer-brand-sub {
  font-size: 11px;
  font-weight: 800;
  color: #38bdf8;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.65;
  color: #94a3b8;
  margin: 0 0 14px 0;
  text-align: left;
  max-width: 540px;
}

.footer-slogan {
  font-size: 13.5px;
  font-style: italic;
  color: #fde047;
  font-weight: 700;
  margin-bottom: 0;
}

/* CỘT 2: THÔNG TIN LIÊN HỆ */
.footer-heading {
  font-size: 16px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin: 0 0 18px 0;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px;
}

.footer-hours {
  font-size: 13px;
  font-weight: 500;
  color: #64748b;
  text-transform: none;
  letter-spacing: normal;
}

.footer-company-name {
  font-size: 14.5px;
  font-weight: 800;
  color: #ffffff;
  margin: 0 0 12px 0;
}

.footer-contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-contact-list li {
  font-size: 14px;
  line-height: 1.55;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: #cbd5e1;
}

.footer-contact-list .c-label {
  color: #64748b;
  font-weight: 600;
  min-width: 60px;
  flex-shrink: 0;
}

.footer-contact-list .c-val {
  color: #cbd5e1;
}

.footer-link {
  color: #94a3b8;
  text-decoration: none;
  transition: all 0.2s ease;
}

.footer-link:hover {
  color: #38bdf8;
  text-decoration: underline;
}

.footer-link-highlight {
  color: #f59e0b;
  font-weight: 800;
  font-size: 15px;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-link-highlight:hover {
  color: #fbbf24;
  text-decoration: underline;
}

/* ĐOẠN DISCLAIMER CHUẨN THẦY KIỂM */
.footer-disclaimer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  margin-top: 10px;
  margin-bottom: 24px;
}

.footer-disclaimer p {
  font-size: 12.8px;
  line-height: 1.7;
  color: #64748b;
  text-align: justify;
  margin: 0;
}

/* ĐƯỜNG KẺ & DÒNG BẢN QUYỀN CUỐI CÙNG */
.footer-bottom-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom-creed {
  font-size: 13px;
  color: #38bdf8;
  font-style: italic;
}

.footer-copyright {
  font-size: 13px;
  color: #64748b;
}

/* RESPONSIVE CHO FOOTER */
@media (max-width: 991px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 767px) {
  .footer {
    padding: 50px 0 95px;
    text-align: left;
  }
  .footer-grid {
    gap: 28px;
  }
  .footer-disclaimer p {
    text-align: left;
  }
  .footer-bottom-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* ==========================================================================
   STICKY MOBILE CTA BAR (DÀNH CHO ĐIỆN THOẠI)
   ========================================================================== */
.sticky-mobile-cta {
  display: block;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(6, 16, 30, 0.96);
  backdrop-filter: blur(10px);
  border-top: 1.5px solid var(--color-amber);
  padding: 10px 16px;
  z-index: 999;
  box-shadow: 0 -4px 18px rgba(0, 0, 0, 0.35);
}

@media (min-width: 1024px) {
  .sticky-mobile-cta {
    display: none;
  }
}

.sticky-mobile-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.sticky-text {
  color: var(--white);
  font-size: 14.5px;
}

.sticky-text strong {
  color: var(--color-amber-light);
  font-size: 15.5px;
  display: block;
}

.sticky-mobile-cta .btn {
  padding: 15px 24px;
  font-size: 15.5px;
  white-space: nowrap;
}

/* ==========================================================================
   ENHANCED MOBILE TYPOGRAPHY & READABILITY (CỠ CHỮ RÕ RÀNG TRÊN ĐIỆN THOẠI)
   ========================================================================== */
@media (max-width: 767px) {
  html {
    font-size: 15.5px;
  }

  body {
    line-height: 1.6;
    overflow-x: hidden;
  }

  .hero-section {
    padding: 12px 0 28px;
  }

  .hero-pill-badge {
    font-size: 10.5px;
    padding: 5px 12px;
    letter-spacing: 0.2px;
    margin-bottom: 12px;
    white-space: normal;
    line-height: 1.3;
  }

  .hero-course-title .title-row-1,
  .hero-course-title .title-cyan {
    font-size: clamp(26px, 7.8vw, 35px);
    line-height: 1.15;
    letter-spacing: -0.5px;
    white-space: normal;
    word-break: keep-all;
  }

  .hero-hook-gold {
    font-size: 1.05rem;
    line-height: 1.35;
    margin-bottom: 6px;
  }

  .hero-desc {
    font-size: 14.5px;
    line-height: 1.55;
    margin-bottom: 18px;
  }

  .hero-checklist {
    gap: 10px;
    margin-bottom: 20px;
  }

  .hero-check-item {
    font-size: 14px;
    gap: 10px;
    line-height: 1.45;
  }

  .hero-stats-row {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    margin-top: 18px;
    padding: 0;
    width: 100%;
  }

  .hero-stat-item {
    flex: 1 1 0;
    min-width: 0;
    text-align: center;
  }

  .hero-stat-num {
    font-size: 1.35rem;
    font-weight: 900;
    color: var(--white);
    margin-bottom: 2px;
    line-height: 1.1;
    white-space: nowrap;
  }

  .hero-stat-label {
    font-size: 10.5px;
    line-height: 1.25;
    color: #94a3b8;
    word-break: normal;
  }

  .price-original-line {
    font-size: 15px;
  }

  .price-free-headline {
    font-size: 1.6rem;
  }

  .form-header-title h3 {
    font-size: 1.25rem;
  }

  .form-header-title p {
    font-size: 14px;
  }

  .form-label {
    font-size: 16px;
    margin-bottom: 8px;
  }

  .form-input {
    font-size: 16.5px;
    min-height: 54px;
    padding: 16px 18px;
  }

  .btn {
    font-size: 17.5px;
    padding: 18px 28px;
  }

  .stat-val {
    font-size: 2.1rem;
  }

  .stat-desc {
    font-size: 15px;
  }

  .section-tag {
    font-size: 13px;
  }

  .section-title {
    font-size: 1.95rem;
    line-height: 1.35;
  }

  .section-subtitle {
    font-size: 16.5px;
    line-height: 1.65;
  }

  .pain-item-badge {
    font-size: 12.5px;
    padding: 5px 14px;
  }

  .pain-item h4 {
    font-size: 1.28rem;
  }

  .pain-item p {
    font-size: 16px;
    line-height: 1.7;
  }

  .pain-quote-tag {
    font-size: 15px;
    padding: 10px 16px;
  }

  .epiphany-banner h3 {
    font-size: 1.75rem;
  }

  .epiphany-banner p {
    font-size: 16.5px;
    line-height: 1.7;
  }

  .epiphany-card-mini {
    font-size: 15.5px;
    padding: 15px 18px;
  }

  .session-num-large {
    font-size: 2.2rem;
  }

  .session-col-info h4 {
    font-size: 1.4rem;
  }

  .session-hook-question {
    font-size: 16px;
  }

  .session-bullet-item {
    font-size: 16px;
    line-height: 1.6;
  }

  .instructor-role-badge {
    font-size: 13px;
  }

  .instructor-name-title {
    font-size: 2.15rem;
  }

  .instructor-tagline-sub {
    font-size: 16px;
  }

  .instructor-cred-item {
    font-size: 16px;
  }

  .instructor-quote-box blockquote {
    font-size: 16.5px;
  }

  .bonus-badge {
    font-size: 13px;
  }

  .bonus-card h4 {
    font-size: 1.3rem;
  }

  .bonus-card p {
    font-size: 16px;
  }

  .bonus-val-tag {
    font-size: 14.5px;
  }

  .aud-strip-title {
    font-size: 16.5px;
  }

  .aud-strip-desc {
    font-size: 14px;
  }

  .faq-btn {
    font-size: 17.5px;
    padding: 20px 20px;
  }

  .faq-ans {
    font-size: 16.5px;
  }

  .countdown-label {
    font-size: 13px;
  }

  .countdown-num {
    font-size: 22px;
  }

  .countdown-unit {
    font-size: 11.5px;
  }

  .security-note {
    font-size: 13.5px;
  }
}

/* ==========================================================================
   HỌC VIÊN FEEDBACK SECTION (CHUẨN THẦY KIỂM & CUỘN TRÒN 2S)
   ========================================================================== */
.section--feedback {
  background: #f8fafc;
  padding: 75px 0 85px;
  position: relative;
  overflow: hidden;
  border-top: 1px solid #e2e8f0;
  border-bottom: 1px solid #e2e8f0;
}

.text-gradient-blue {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #0284c7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-header-line {
  width: 90px;
  height: 3px;
  background: linear-gradient(90deg, transparent, #38bdf8, transparent);
  margin: 16px auto;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-line-dot {
  width: 7px;
  height: 7px;
  background: #0284c7;
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(2, 132, 199, 0.6);
}

.feedback-carousel-wrap {
  position: relative;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 55px;
}

.fb-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #ffffff;
  border: 1.5px solid #cbd5e1;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.12);
  color: #0f172a;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease;
  outline: none;
}

.fb-nav-btn:hover {
  background: #2563eb;
  color: #ffffff;
  border-color: #2563eb;
  transform: translateY(-50%) scale(1.08);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
}

.fb-prev-btn {
  left: 8px;
}

.fb-next-btn {
  right: 8px;
}

.feedback-track-container {
  overflow-x: auto;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 15px 5px 25px;
  cursor: grab;
}

.feedback-track-container:active {
  cursor: grabbing;
}

.feedback-track-container::-webkit-scrollbar {
  display: none;
}

.feedback-track {
  display: flex;
  gap: 20px;
  width: max-content;
}

.feedback-card {
  width: 275px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
  user-select: none;
}

.feedback-card:hover {
  transform: translateY(-6px);
}

.feedback-card-inner {
  background: #ffffff;
  border-radius: 20px;
  overflow: hidden;
  border: 1.5px solid #e2e8f0;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  position: relative;
  aspect-ratio: 9/19;
}

.feedback-card-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  display: block;
}

.feedback-card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.35);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.feedback-card:hover .feedback-card-overlay {
  opacity: 1;
}

.fb-zoom-btn {
  background: #ffffff;
  color: #0f172a;
  padding: 8px 16px;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  pointer-events: none;
}

.feedback-card-caption {
  text-align: center;
  margin-top: 12px;
  font-size: 14px;
  color: #475569;
}

.feedback-card-caption strong {
  color: #0f172a;
}

.feedback-hint-bar {
  text-align: center;
  margin-top: 14px;
}

.fb-hint-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.2);
  color: #1d4ed8;
  padding: 7px 20px;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 600;
}

/* LIGHTBOX MODAL */
.fb-lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.fb-lightbox-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.fb-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 7, 18, 0.85);
  backdrop-filter: blur(8px);
}

.fb-lightbox-box {
  position: relative;
  z-index: 2;
  max-width: 92vw;
  max-height: 92vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.fb-lightbox-img {
  max-width: 420px;
  max-height: 88vh;
  border-radius: 18px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.65);
  object-fit: contain;
  background: #ffffff;
}

.fb-lightbox-close {
  position: absolute;
  top: -16px;
  right: -16px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #ffffff;
  color: #0f172a;
  border: none;
  font-size: 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.35);
  transition: all 0.2s;
  line-height: 1;
}

.fb-lightbox-close:hover {
  background: #ef4444;
  color: #ffffff;
  transform: scale(1.1);
}

@media (max-width: 767px) {
  .section--feedback {
    padding: 50px 0 60px;
  }
  .feedback-carousel-wrap {
    padding: 0 10px;
  }
  .fb-nav-btn {
    display: none;
  }
  .feedback-card {
    width: 235px;
  }
  .feedback-track {
    gap: 14px;
  }
  .fb-lightbox-img {
    max-width: 90vw;
    max-height: 80vh;
  }
}

/* ==========================================================================
   BOTTOM REGISTRATION SECTION (CHUẨN THẦY NGUYỄN TẤT KIỂM)
   ========================================================================== */
.section--bottom-reg {
  background-color: #06152e;
  background-image: 
    radial-gradient(circle at 15% 30%, rgba(37, 99, 235, 0.35) 0%, transparent 60%),
    radial-gradient(circle at 85% 75%, rgba(14, 165, 233, 0.22) 0%, transparent 50%),
    radial-gradient(rgba(56, 189, 248, 0.08) 1.2px, transparent 1.2px);
  background-size: 100% 100%, 100% 100%, 26px 26px;
  color: #ffffff;
  padding: 85px 0 95px;
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(56, 189, 248, 0.18);
  scroll-margin-top: 80px;
}

/* TECH NETWORK SVG BACKGROUND (CHUẨN THẦY KIỂM) */
.bottom-reg-bg-tech {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.tech-network-svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
  animation: techMeshFloat 14s ease-in-out infinite alternate;
}

@keyframes techMeshFloat {
  0% {
    transform: scale(1) translateY(0);
  }
  100% {
    transform: scale(1.03) translateY(-10px);
  }
}

.tech-nodes circle {
  animation: nodePulse 3.5s ease-in-out infinite alternate;
}

.tech-nodes circle:nth-child(2n) {
  animation-duration: 4.5s;
  animation-delay: 0.8s;
}

.tech-nodes circle:nth-child(3n) {
  animation-duration: 5.2s;
  animation-delay: 1.5s;
}

@keyframes nodePulse {
  0% {
    opacity: 0.4;
    transform: scale(0.9);
  }
  100% {
    opacity: 1;
    transform: scale(1.3);
  }
}

.section--bottom-reg::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -50px;
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.22) 0%, rgba(14, 165, 233, 0.08) 50%, transparent 70%);
  filter: blur(90px);
  pointer-events: none;
}

.bottom-reg-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 2;
}

@media (min-width: 992px) {
  .bottom-reg-grid {
    grid-template-columns: 1.18fr 0.82fr;
    gap: 55px;
  }
}

/* CỘT TRÁI: THÔNG TIN & 4 ĐIỂM NỔI BẬT */
.bottom-reg-info {
  display: flex;
  flex-direction: column;
}

.bottom-reg-tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  background: rgba(245, 158, 11, 0.14);
  border: 1.5px solid rgba(245, 158, 11, 0.5);
  border-radius: 9999px;
  padding: 7px 20px;
  font-size: 13px;
  font-weight: 800;
  color: #fbbf24;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin-bottom: 16px;
  box-shadow: 0 0 18px rgba(245, 158, 11, 0.25);
}

.bottom-reg-title {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0 0 18px 0;
  line-height: 1.25;
}

.bottom-reg-title .reg-title-white {
  font-size: clamp(2rem, 3.2vw, 2.7rem);
  font-weight: 900;
  color: #ffffff;
  letter-spacing: -0.4px;
  text-transform: none;
}

.bottom-reg-title .reg-title-gold {
  font-size: clamp(2.1rem, 3.4vw, 2.85rem);
  font-weight: 900;
  color: #f59e0b;
  background: linear-gradient(90deg, #fff59d 0%, #fde047 25%, #f59e0b 70%, #d97706 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.4px;
  text-transform: none;
  filter: drop-shadow(0 2px 18px rgba(245, 158, 11, 0.45));
}

.reg-text-0d {
  color: #fde047;
  -webkit-text-fill-color: #fde047;
  text-shadow: 0 0 16px rgba(250, 204, 21, 0.85), 0 0 28px rgba(245, 158, 11, 0.5);
  font-weight: 900;
}

.bottom-reg-desc {
  font-size: 15.5px;
  line-height: 1.65;
  color: #cbd5e1;
  max-width: 580px;
  margin-bottom: 26px;
}

/* 4 BULLETS CHUẨN THẦY KIỂM (SOLID BLUE CIRCLE + WHITE CHECKMARK) */
.bottom-reg-bullets {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.reg-bullet-row {
  display: flex;
  align-items: center;
  gap: 13px;
}

.reg-bullet-check {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  min-width: 24px;
  border-radius: 50%;
  background: #2563eb;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.45);
}

.reg-bullet-text {
  font-size: 15.5px;
  font-weight: 600;
  color: #f8fafc;
  line-height: 1.45;
}

/* CỘT PHẢI: FORM CARD CHUẨN THẦY KIỂM */
.bottom-reg-form-wrap {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
}

.bottom-form-card {
  background: #ffffff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.bottom-form-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.65), 0 0 30px rgba(56, 189, 248, 0.2);
}

/* HEADER FORM XANH DƯƠNG NỔI BẬT */
.bottom-form-header {
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
  padding: 22px 24px 20px;
  text-align: center;
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(29, 78, 216, 0.35);
}

.bottom-form-header .price-original-line {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: line-through;
  font-weight: 600;
  margin-bottom: 2px;
}

.bottom-form-header .price-free-headline {
  font-size: clamp(1.8rem, 2.5vw, 2.2rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.3px;
  color: #ffffff;
  text-transform: uppercase;
}

.bottom-form-header .highlight-gold {
  color: #fde047;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
}

/* THANH TIẾN TRÌNH SUẤT HỌC (SCARCITY PROGRESS BAR) */
.form-scarcity-box {
  background: #fff7ed;
  border-bottom: 1.5px solid #fed7aa;
  padding: 10px 14px;
  text-align: center;
}

.form-scarcity-text {
  font-size: clamp(11.5px, 3.25vw, 13.5px);
  font-weight: 800;
  color: #c2410c;
  display: block;
  text-align: center;
  white-space: nowrap !important;
  margin-bottom: 7px;
  letter-spacing: -0.2px;
}

.form-scarcity-text strong {
  color: #ea580c;
  font-size: 1.05em;
  font-weight: 900;
}

.scarcity-fire {
  font-size: 14px;
  display: inline-block;
  vertical-align: -1px;
  animation: pulse-fire 1s infinite alternate ease-in-out;
}

@keyframes pulse-fire {
  0% { transform: scale(1); }
  100% { transform: scale(1.3); }
}

.form-scarcity-bar {
  width: 100%;
  height: 9px;
  background: #ffedd5;
  border-radius: 9999px;
  overflow: hidden;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
  position: relative;
}

.form-scarcity-fill {
  height: 100%;
  border-radius: 9999px;
  background: linear-gradient(90deg, #f97316 0%, #ef4444 60%, #dc2626 100%);
  position: relative;
  overflow: hidden;
}

.form-scarcity-fill::after {
  content: '';
  position: absolute;
  top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.65), transparent);
  animation: progress-shimmer 2.2s infinite ease-in-out;
}

@keyframes progress-shimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* BODY FORM */
.bottom-form-body {
  padding: 24px 22px 22px;
  background: #ffffff;
}

.bottom-form-intro {
  text-align: center;
  margin-bottom: 18px;
}

.bottom-form-intro h3 {
  font-size: 16.5px;
  font-weight: 900;
  color: #0b1e3d;
  margin: 0 0 6px 0;
  line-height: 1.35;
  text-transform: uppercase;
  letter-spacing: -0.2px;
}

.bottom-form-intro p {
  font-size: 13.5px;
  color: #2563eb;
  font-weight: 600;
  margin: 0;
  line-height: 1.45;
}

.bottom-form-inner {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.bottom-form-inner .form-input {
  width: 100%;
  padding: 15px 18px;
  font-size: 15px;
  border: 1.5px solid #cbd5e1;
  border-radius: 10px;
  background: #f8fafc;
  color: #0f172a;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.bottom-form-inner .form-input:focus {
  outline: none;
  background: #ffffff;
  border-color: #2563eb;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

.bottom-form-inner .form-input::placeholder {
  color: #94a3b8;
  font-size: 14.5px;
}

/* NÚT SUBMIT VÀNG HOÀNG KIM NỔI BẬT • HIỆU ỨNG NHẤP NHÁY PHÁT SÁNG */
.bottom-form-submit-btn {
  width: 100%;
  padding: 16px 20px;
  background: linear-gradient(135deg, #fef08a 0%, #facc15 25%, #f59e0b 70%, #d97706 100%) !important;
  color: #061226 !important;
  font-size: 16px;
  font-weight: 900;
  border: 2px solid rgba(255, 255, 255, 0.75) !important;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.6);
  transition: all 0.25s ease;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-top: 4px;
  animation: gold-btn-flash-pulse 1.8s infinite ease-in-out !important;
}

.bottom-form-submit-btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 35px rgba(245, 158, 11, 0.85);
  filter: brightness(1.15);
}

.bottom-form-submit-btn:active {
  transform: translateY(1px);
}

.bottom-form-subnote {
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  color: #dc2626;
  margin-top: 2px;
  letter-spacing: 0.1px;
}

/* BẢO MẬT */
.bottom-form-security {
  text-align: center;
  font-size: 12.5px;
  color: #64748b;
  margin-top: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* LIVE SOCIAL PROOF TOAST XOAY VÒNG */
.bottom-form-live-toast {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 13px;
  color: #166534;
  margin-top: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 2px 8px rgba(22, 101, 52, 0.06);
}

.live-toast-dot {
  width: 8px;
  height: 8px;
  background-color: #22c55e;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
  animation: live-dot-pulse 1.6s infinite;
}

.live-toast-text {
  transition: opacity 0.3s ease;
  font-weight: 600;
}

.live-viewer-count {
  display: inline-block;
  font-weight: 800;
  color: #1d4ed8;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.3s ease;
  min-width: 28px;
  text-align: center;
}

.live-viewer-count.viewer-bump {
  transform: scale(1.22);
  color: #0284c7;
}

.social-live-dot {
  width: 9px;
  height: 9px;
  background: #22c55e;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
  animation: pulse-green 1.8s infinite;
}

@keyframes pulse-green {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 7px rgba(34, 197, 94, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0);
  }
}

/* RESPONSIVE MOBILE CHO BOTTOM REGISTRATION SECTION */
@media (max-width: 767px) {
  .section--bottom-reg {
    padding: 55px 0 110px;
  }
  .bottom-reg-tag {
    font-size: 12.5px;
    padding: 6px 16px;
    margin-bottom: 14px;
  }
  .bottom-reg-title .reg-title-white {
    font-size: clamp(17px, 5.1vw, 22.5px) !important;
    white-space: nowrap !important;
    letter-spacing: -0.35px;
    line-height: 1.32;
  }
  .bottom-reg-title .reg-title-gold {
    font-size: clamp(17.5px, 5.25vw, 23px) !important;
    white-space: nowrap !important;
    letter-spacing: -0.35px;
    line-height: 1.32;
  }
  .bottom-reg-desc {
    font-size: 14.5px;
    margin-bottom: 22px;
  }
  .bottom-reg-bullets {
    gap: 13px;
  }
  .reg-bullet-text {
    font-size: 14.5px;
  }
  .reg-bullet-check {
    width: 22px;
    height: 22px;
    min-width: 22px;
  }
  .reg-bullet-check svg {
    width: 12px;
    height: 12px;
  }
  .bottom-form-body {
    padding: 20px 14px 18px;
  }
  .bottom-form-intro h3 {
    font-size: clamp(13.8px, 4vw, 16.5px);
  }
  .bottom-form-intro p {
    font-size: 12.5px;
  }
  .bottom-form-submit-btn {
    font-size: clamp(12px, 3.45vw, 14.5px) !important;
    padding: 14px 8px !important;
    white-space: nowrap !important;
    letter-spacing: -0.2px;
  }
  .bottom-form-subnote {
    font-size: clamp(10.8px, 3.05vw, 12px);
    white-space: nowrap !important;
  }
}

/* ==========================================================================
   CẤU TRÚC MỚI THEO CHIẾN LƯỢC SẾP YÊU CẦU
   1. Hero Visual Showcase (Gia Trang Hologram, không có Form)
   2. Section 2: 5 Nhóm đối tượng & Nỗi đau tử huyệt
   3. Section 3: Nguyên nhân cốt lõi & Hạn chế DISC/MBTI
   4. Section 4: Kính Chiếu Yêu Năng Lượng Số & CTA 1
   ========================================================================== */

/* --- 1. HERO VISUAL SHOWCASE --- */
.hero-mobile-speaker-badge {
  display: none;
}

@media (max-width: 900px) {
  .hero-visual-col {
    display: none !important;
  }
  .hero-mobile-speaker-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: rgba(15, 35, 71, 0.85);
    border: 1.5px solid rgba(56, 189, 248, 0.45);
    padding: 6px 16px 6px 8px;
    border-radius: 9999px;
    margin-bottom: 16px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
    text-decoration: none !important;
    cursor: pointer;
    transition: all 0.25s ease;
    -webkit-tap-highlight-color: transparent;
  }
  .hero-mobile-speaker-badge:hover,
  .hero-mobile-speaker-badge:active {
    background: rgba(23, 49, 97, 0.95);
    border-color: #38bdf8;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(56, 189, 248, 0.35);
  }
  .speaker-badge-arrow {
    display: inline-block;
    color: #38bdf8;
    margin-left: 4px;
    font-size: 13px;
    font-weight: 800;
    transition: transform 0.2s ease;
  }
  .hero-mobile-speaker-badge:hover .speaker-badge-arrow,
  .hero-mobile-speaker-badge:active .speaker-badge-arrow {
    transform: translateX(3px);
  }
  .hero-mobile-speaker-avatar-wrap {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    overflow: hidden;
    background: linear-gradient(135deg, #38bdf8 0%, #1d4ed8 100%);
    border: 1.5px solid #38bdf8;
    flex-shrink: 0;
    display: flex;
    align-items: flex-start;
    justify-content: center;
  }
  .hero-mobile-speaker-avatar {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
  }
  .hero-mobile-speaker-info {
    display: flex;
    flex-direction: column;
    text-align: left;
  }
  .hero-mobile-speaker-name {
    font-size: 13.5px;
    font-weight: 800;
    color: #ffffff;
    line-height: 1.2;
  }
  .hero-mobile-speaker-sub {
    font-size: 11px;
    color: #94a3b8;
    line-height: 1.2;
    margin-top: 2px;
  }
}

.hero-visual-col {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  width: 100%;
}

.hero-visual-card {
  position: relative;
  background: radial-gradient(circle at 50% 25%, rgba(29, 78, 216, 0.4) 0%, rgba(10, 25, 52, 0.95) 75%);
  border: 1.5px solid rgba(56, 189, 248, 0.45);
  border-radius: 24px;
  padding: 24px 20px 20px;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.65), 0 0 35px rgba(56, 189, 248, 0.22);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  width: 100%;
  max-width: 440px;
  overflow: hidden;
}

.hero-visual-card::before {
  content: "";
  position: absolute;
  top: -40%;
  left: -40%;
  width: 180%;
  height: 180%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.12) 0%, transparent 65%);
  pointer-events: none;
}

.hero-visual-img-wrap {
  position: relative;
  width: 100%;
  max-width: 320px;
  margin: 0 auto 16px;
  filter: drop-shadow(0 14px 24px rgba(0, 0, 0, 0.6));
}

.hero-visual-img-wrap img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}

.hero-speaker-badge-row {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: rgba(6, 16, 30, 0.9);
  border: 1px solid rgba(56, 189, 248, 0.35);
  padding: 12px 16px;
  border-radius: 14px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.45);
}

.hero-speaker-name {
  color: #ffffff;
  font-weight: 800;
  font-size: 16.5px;
  letter-spacing: 0.2px;
}

.hero-speaker-title {
  color: #38bdf8;
  font-size: 13.5px;
  font-weight: 700;
}

.hero-speaker-desc {
  color: #cbd5e1;
  font-size: 12px;
  line-height: 1.4;
}

/* Micro CTA cuộn mềm trong Hero */
.hero-micro-cta-wrap {
  margin-top: 24px;
}

.hero-micro-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.18) 0%, rgba(37, 99, 235, 0.32) 100%);
  border: 1.5px solid #38bdf8;
  border-radius: 9999px;
  color: #ffffff !important;
  font-weight: 700;
  font-size: 15.5px;
  text-decoration: none !important;
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.25);
  transition: all 0.25s ease;
  cursor: pointer;
}

.hero-micro-cta:hover {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.35) 0%, rgba(37, 99, 235, 0.5) 100%);
  transform: translateY(-2px);
  box-shadow: 0 0 28px rgba(56, 189, 248, 0.5);
  color: #ffffff !important;
}

.hero-micro-cta svg {
  animation: bounce-down 1.8s infinite ease-in-out;
}

@keyframes bounce-down {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

/* --- 2. SECTION 2: 5 NHÓM ĐỐI TƯỢNG & NỖI ĐAU TỬ HUYỆT --- */
/* --- 2. SECTION 2: 5 NHÓM ĐỐI TƯỢNG & NỖI ĐAU TỬ HUYỆT (LIGHT LUXURY THEME - SÁNG SỦA, SANG TRỌNG) --- */
.section--pain-audiences {
  background: #ffffff !important;
  padding: 36px 0 18px;
  color: var(--text-slate);
  position: relative;
}

@media (max-width: 900px) {
  .section--pain-audiences {
    padding: 22px 0 12px;
  }
}

.section--pain-audiences .section-tag {
  background: #e0f2fe;
  color: #0284c7;
  border: 1.5px solid #bae6fd;
}

.section--pain-audiences .section-title {
  color: #0b1e3d !important;
  font-weight: 900;
  letter-spacing: -0.5px;
}

.section--pain-audiences .section-title .highlight-blue {
  color: #2563eb !important;
  background: linear-gradient(90deg, #2563eb 0%, #0284c7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: none;
}

.section--pain-audiences .section-subtitle {
  color: #475569 !important;
  font-size: 16px;
  line-height: 1.6;
}

/* --- BỘ 5 THẺ MINI COMPACT LIÊN TIẾP (LIGHT LUXURY COMPACT) --- */
.pain-compact-grid {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

@media (max-width: 900px) {
  .pain-compact-grid {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-top: 14px;
  }
}

.pain-compact-card {
  background: #ffffff;
  border: 1.5px solid #e2e8f0;
  border-radius: 18px;
  padding: 16px 20px;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
}

@media (max-width: 900px) {
  .pain-compact-card {
    padding: 12px 14px;
    border-radius: 14px;
  }
}

.pain-compact-card:hover {
  transform: translateY(-2px);
  border-color: #38bdf8;
  box-shadow: 0 8px 24px rgba(2, 132, 199, 0.12);
}

.pain-compact-card--highlight {
  grid-column: span 2;
  border-color: #fcd34d;
  background: linear-gradient(180deg, #ffffff 0%, #fffdf5 100%);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.08);
}

@media (max-width: 900px) {
  .pain-compact-card--highlight {
    grid-column: span 1;
  }
}

.pain-compact-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid #f1f5f9;
}

.pain-compact-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: #eff6ff;
  border: 1.5px solid #bfdbfe;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #2563eb;
  flex-shrink: 0;
}

@media (max-width: 900px) {
  .pain-compact-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
  }
  .pain-compact-icon svg {
    width: 17px;
    height: 17px;
  }
}

.pain-compact-icon--gold {
  background: #fffbeb;
  border-color: #fde68a;
  color: #d97706;
}

.pain-compact-title {
  font-size: 16.5px;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.25;
}

@media (max-width: 900px) {
  .pain-compact-header {
    gap: 8px;
  }
  .pain-compact-title {
    font-size: clamp(11.8px, 3.45vw, 14.8px) !important;
    font-weight: 800;
    white-space: nowrap !important;
    letter-spacing: -0.35px;
  }
  .pain-compact-card--highlight .pain-compact-title {
    white-space: normal !important;
    line-height: 1.35;
  }
}

.pain-compact-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

@media (max-width: 900px) {
  .pain-compact-list {
    gap: 7px;
  }
}

.pain-compact-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14.5px;
  color: #334155;
  line-height: 1.45;
}

@media (max-width: 900px) {
  .pain-compact-item {
    font-size: 15px;
    line-height: 1.48;
    color: #1e293b;
  }
}

.pain-item-x {
  color: #ef4444;
  font-weight: 800;
  font-size: 13px;
  flex-shrink: 0;
  margin-top: 1px;
}

@media (max-width: 900px) {
  .pain-item-x {
    font-size: 14.5px;
    margin-top: 1px;
  }
}

/* BANNER ĐÚC KẾT CHUNG CHO CẢ 5 NHÓM */
.pain-bottom-banner {
  margin-top: 16px;
}

@media (max-width: 900px) {
  .pain-bottom-banner {
    margin-top: 12px;
  }
}

.pain-bottom-banner__inner {
  background: linear-gradient(135deg, #f0fdf4 0%, #eff6ff 100%);
  border: 1.5px solid #bae6fd;
  border-radius: 16px;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.08);
}

@media (max-width: 900px) {
  .pain-bottom-banner__inner {
    padding: 12px 14px;
    gap: 10px;
    align-items: flex-start;
  }
}

.pain-bottom-banner__icon {
  font-size: 24px;
  flex-shrink: 0;
  line-height: 1;
}

@media (max-width: 900px) {
  .pain-bottom-banner__icon {
    font-size: 20px;
    margin-top: 2px;
  }
}

.pain-bottom-banner__text {
  font-size: 14.5px;
  color: #0b1e3d;
  line-height: 1.5;
  margin: 0;
}

@media (max-width: 900px) {
  .pain-bottom-banner__text {
    font-size: 14.5px;
    line-height: 1.5;
  }
}

.pain-bottom-banner__text strong {
  color: #1d4ed8;
}

.pain-bottom-banner__text em {
  color: #d97706;
  font-weight: 700;
  font-style: normal;
}

/* --- 3. SECTION 3: NGUYÊN NHÂN CỐT LÕI (SOFT ICE-BLUE LUXURY THEME - TÁCH BIỆT RÕ RÀNG VỚI SECTION 2) --- */
.section--root-cause {
  background: linear-gradient(180deg, #edf4fc 0%, #e2ecf9 100%) !important;
  color: #0b1e3d !important;
  padding: 48px 0 !important;
  border-top: 1.5px solid #cfe2fa !important;
  position: relative;
}

@media (max-width: 900px) {
  .section--root-cause {
    padding: 34px 0 28px !important;
  }
}

.section--root-cause .section-tag {
  background: #fee2e2;
  color: #dc2626;
  border: 1.5px solid #fecaca;
}

.section--root-cause .section-title {
  color: #0b1e3d !important;
  font-weight: 900;
  letter-spacing: -0.5px;
}

@media (max-width: 900px) {
  .section--root-cause .section-title {
    font-size: 20px !important;
    line-height: 1.35 !important;
    letter-spacing: -0.3px;
    margin-bottom: 12px;
  }
}

.section--root-cause .section-title .highlight-blue {
  color: #2563eb !important;
  background: linear-gradient(90deg, #2563eb 0%, #0284c7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: none;
}

.section--root-cause .section-subtitle {
  color: #475569 !important;
  font-size: 16px;
  line-height: 1.6;
}

.root-cause-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 20px;
}

@media (max-width: 900px) {
  .root-cause-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 14px;
  }
}

.root-cause-card {
  background: #ffffff !important;
  border: 1.5px solid #fecaca;
  border-radius: 18px;
  padding: 22px 20px;
  box-shadow: 0 10px 25px rgba(2, 132, 199, 0.08), 0 2px 6px rgba(0, 0, 0, 0.03);
  position: relative;
}

@media (max-width: 900px) {
  .root-cause-card {
    padding: 18px 16px;
    border-radius: 16px;
    box-shadow: 0 8px 20px rgba(2, 132, 199, 0.07);
  }
}

.root-cause-card--mbti {
  border-color: #bae6fd;
  box-shadow: 0 10px 25px rgba(2, 132, 199, 0.08), 0 2px 6px rgba(0, 0, 0, 0.03);
}

.root-cause-header {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.root-cause-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 6px;
  background: #fee2e2;
  color: #dc2626;
  border: 1px solid #fca5a5;
  align-self: flex-start;
}

.root-cause-tag--cyan {
  background: #e0f2fe;
  color: #0284c7;
  border-color: #7dd3fc;
}

.root-cause-title {
  font-size: 17.5px;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.3;
}

@media (max-width: 900px) {
  .root-cause-title {
    font-size: 15.5px;
  }
}

.root-cause-desc {
  font-size: 14.5px;
  color: #334155;
  line-height: 1.55;
  margin-bottom: 12px;
}

@media (max-width: 900px) {
  .root-cause-desc {
    font-size: 14.5px;
    line-height: 1.5;
  }
}

#chuyen-gia {
  scroll-margin-top: 24px;
}

.root-cause-box-callout {
  background: #fef2f2;
  border: 1.5px dashed #f87171;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 14px;
  color: #991b1b;
  line-height: 1.45;
}

.root-cause-box-callout strong {
  color: #7f1d1d;
}

.disc-test-fail-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #fffbeb;
  padding: 12px 14px;
  border-radius: 10px;
  margin-top: 10px;
  border-left: 4px solid #f59e0b;
  font-size: 14px;
  color: #92400e;
  line-height: 1.45;
}

/* --- 4. SECTION 4: GIẢI PHÁP ĐỘT PHÁ - KÍNH CHIẾU YÊU --- */
.section--solution-kcy {
  background: radial-gradient(ellipse at 50% 30%, #15386f 0%, #0b1f3f 45%, #06101e 100%);
  padding: 44px 0 44px;
  color: var(--white);
  position: relative;
  overflow: hidden;
}

@media (max-width: 900px) {
  .section--solution-kcy {
    padding: 26px 0 28px;
  }
}

.kcy-hero-banner {
  text-align: center;
  max-width: 880px;
  margin: 0 auto 24px;
  position: relative;
  z-index: 1;
}

.kcy-badge-keyword {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.25) 0%, rgba(217, 119, 6, 0.35) 100%);
  border: 2px solid #f59e0b;
  color: #fde047;
  padding: 6px 18px;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 14px;
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.35);
  white-space: nowrap;
}

@media (max-width: 900px) {
  .kcy-badge-keyword {
    font-size: 11.5px;
    padding: 5px 12px;
    letter-spacing: 0.3px;
    margin-bottom: 12px;
  }
}

@media (max-width: 380px) {
  .kcy-badge-keyword {
    font-size: 10.5px;
    padding: 4px 10px;
    letter-spacing: 0.2px;
  }
}

.kcy-main-headline {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 12px;
  color: #ffffff;
  letter-spacing: -0.5px;
}

.kcy-main-headline .kcy-gold-glow {
  background: linear-gradient(90deg, #fde047 0%, #f59e0b 50%, #d97706 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: #f59e0b;
  filter: drop-shadow(0 0 16px rgba(245, 158, 11, 0.5));
}

.kcy-desc {
  font-size: 15.5px;
  color: #cbd5e1;
  line-height: 1.6;
  max-width: 780px;
  margin: 0 auto 20px;
}

.kcy-desc strong {
  color: #38bdf8;
}

/* 3 GIÁ TRỊ NHẬN ĐƯỢC */
.kcy-values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

@media (max-width: 900px) {
  .kcy-values-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

@media (max-width: 900px) {
  .kcy-values-grid {
    grid-template-columns: 1fr;
  }
}

.kcy-value-card {
  background: rgba(11, 30, 61, 0.8);
  border: 1.5px solid rgba(56, 189, 248, 0.3);
  border-radius: 20px;
  padding: 28px 22px;
  text-align: center;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.4);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.kcy-value-card:hover {
  transform: translateY(-4px);
  border-color: #38bdf8;
  box-shadow: 0 14px 36px rgba(56, 189, 248, 0.25);
}

.kcy-value-icon {
  width: 60px;
  height: 60px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.25) 0%, rgba(37, 99, 235, 0.35) 100%);
  border: 1.5px solid #38bdf8;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #38bdf8;
  margin-bottom: 18px;
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.35);
}

.kcy-value-title {
  font-size: 18.5px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 10px;
  line-height: 1.3;
}

.kcy-value-text {
  font-size: 14.5px;
  color: #94a3b8;
  line-height: 1.55;
}

@media (max-width: 900px) {
  .kcy-value-card {
    padding: 22px 14px;
    border-radius: 16px;
  }
  .kcy-value-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    margin-bottom: 12px;
  }
  .kcy-value-title {
    font-size: clamp(13px, 4.3vw, 17px);
    white-space: nowrap !important;
    overflow: hidden;
    text-overflow: ellipsis;
    letter-spacing: -0.2px;
    margin-bottom: 8px;
  }
  .kcy-value-text {
    font-size: 14px;
    line-height: 1.5;
  }
}

@media (max-width: 380px) {
  .kcy-value-card {
    padding: 20px 10px;
  }
  .kcy-value-title {
    font-size: 13px;
    letter-spacing: -0.4px;
  }
}

/* NÚT CTA SECTION 4 (NÚT VÀNG NỔI BẬT • HIỆU ỨNG NHẤP NHÁY PHÁT SÁNG) */
.kcy-cta-row {
  text-align: center;
  margin-top: 18px;
}

@keyframes gold-btn-flash-pulse {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(250, 204, 21, 0.75), 0 8px 25px rgba(245, 158, 11, 0.6);
    filter: brightness(1);
  }
  35% {
    transform: scale(1.035);
    box-shadow: 0 0 0 8px rgba(250, 204, 21, 0), 0 12px 38px rgba(251, 191, 36, 0.95);
    filter: brightness(1.15);
  }
  70% {
    transform: scale(0.99);
    box-shadow: 0 0 0 0 rgba(250, 204, 21, 0), 0 6px 18px rgba(245, 158, 11, 0.45);
    filter: brightness(0.98);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(250, 204, 21, 0.75), 0 8px 25px rgba(245, 158, 11, 0.6);
    filter: brightness(1);
  }
}

.btn-kcy-cta,
.btn--kcy-gold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 36px;
  background: linear-gradient(135deg, #fef08a 0%, #facc15 25%, #f59e0b 70%, #d97706 100%) !important;
  color: #061226 !important;
  font-weight: 900 !important;
  font-size: 17.5px;
  border-radius: 9999px;
  text-decoration: none !important;
  box-shadow: 0 8px 30px rgba(245, 158, 11, 0.65);
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
  cursor: pointer;
  letter-spacing: 0.2px;
  border: 2px solid rgba(255, 255, 255, 0.65) !important;
  animation: gold-btn-flash-pulse 1.8s infinite ease-in-out !important;
  text-transform: uppercase;
}

.btn-kcy-cta:hover,
.btn--kcy-gold:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 14px 45px rgba(245, 158, 11, 0.9);
  filter: brightness(1.2);
  color: #020817 !important;
}

@media (max-width: 900px) {
  .btn-kcy-cta,
  .btn--kcy-gold {
    padding: 15px 20px;
    font-size: 14px;
    letter-spacing: 0px;
    width: 100%;
    max-width: 360px;
    box-sizing: border-box;
    text-align: center;
    line-height: 1.35;
  }
}

.btn-kcy-subnote {
  font-size: 13px;
  color: #94a3b8;
  margin-top: 10px;
  display: block;
}

/* CTA ROW CHO LỘ TRÌNH SECTION 6 */
.lo-trinh-cta-row {
  text-align: center;
  margin-top: 36px;
}