/* ==========================================================================
   LÀM CHỦ SỨC KHỎE - Landing Page
   Hệ thống thiết kế: ấm áp, tự nhiên, chuyên gia, cao cấp nhưng gần gũi.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700;800&family=Noto+Serif:ital,wght@0,400;0,600;1,400&display=swap');

/* ---------------------------------- */
/* 1. BIẾN THIẾT KẾ (DESIGN TOKENS)    */
/* ---------------------------------- */
:root {
  /* Màu sắc */
  --color-cream-bg: #F8F1E5;
  --color-cream-white: #FFFDF8;
  --color-brown: #DD9E59;
  --color-brown-dark: #8A4E27;
  --color-accent: #C58A45;
  --color-text: #2D2A26;
  --color-text-soft: #6B6258;
  --color-white: #FFFFFF;
  --color-border: #E7D9C2;
  --color-border-on-brown: rgba(248, 241, 229, 0.25);

  /* Chữ */
  --font-sans: 'Be Vietnam Pro', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-serif: 'Noto Serif', Georgia, 'Times New Roman', serif;

  /* Bo góc & bóng đổ */
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-full: 999px;
  --shadow-sm: 0 2px 10px rgba(45, 42, 38, 0.06);
  --shadow-md: 0 10px 28px rgba(45, 42, 38, 0.10);
  --shadow-lg: 0 20px 48px rgba(45, 42, 38, 0.16);

  /* Khung layout */
  --page-max: 1440px;
  --container-max: 1240px;
  --header-h: 84px;

  /* Khoảng cách */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  /* Chuyển động */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.2s var(--ease);
  --transition-base: 0.3s var(--ease);
}

/* ---------------------------------- */
/* 2. RESET & BASE                     */
/* ---------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-cream-bg);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4, p { margin: 0; }
input, textarea, button { font-family: inherit; font-size: inherit; }

:focus-visible {
  outline: 2px solid var(--color-brown-dark);
  outline-offset: 3px;
}

/* Đảm bảo section không bị header sticky che khi nhảy neo (anchor) */
section[id] { scroll-margin-top: var(--header-h); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-brown-dark);
  color: var(--color-cream-white);
  padding: 12px 20px;
  border-radius: 0 0 var(--radius-sm) 0;
  font-weight: 700;
  z-index: 1000;
}
.skip-link:focus { left: 0; }

::selection { background: var(--color-accent); color: var(--color-white); }

/* Thanh cuộn tinh tế */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--color-cream-bg); }
::-webkit-scrollbar-thumb { background: var(--color-accent); border-radius: var(--radius-full); }

/* Hoa lá rơi nhẹ trên nền trang - gợi nét Đông y, thảo mộc. Trang trí thuần tuý,
   không chặn thao tác (pointer-events: none), tự tắt khi trình duyệt bật
   "giảm chuyển động". */
.petal-field {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 150;
}
.petal {
  position: absolute;
  top: -8%;
  will-change: transform;
  animation-name: petal-fall;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}
.petal svg { display: block; width: 100%; height: 100%; }
@keyframes petal-fall {
  0%   { transform: translate3d(0, -10vh, 0) rotate(0deg); }
  25%  { transform: translate3d(calc(var(--drift) * 0.5), 22vh, 0) rotate(calc(var(--spin) * 0.25)); }
  50%  { transform: translate3d(calc(var(--drift) * -0.35), 55vh, 0) rotate(calc(var(--spin) * 0.5)); }
  75%  { transform: translate3d(calc(var(--drift) * 0.65), 82vh, 0) rotate(calc(var(--spin) * 0.75)); }
  100% { transform: translate3d(0, 112vh, 0) rotate(var(--spin)); }
}
@media (prefers-reduced-motion: reduce) {
  .petal-field { display: none; }
}

/* ---------------------------------- */
/* 3. TIỆN ÍCH DÙNG CHUNG               */
/* ---------------------------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

main { overflow-x: hidden; }

.section { padding: var(--space-9) 0; }
.section--tight { padding: var(--space-8) 0; }
.section--cream { background: var(--color-cream-bg); }
.section--white { background: var(--color-cream-white); }
.section--brown { background: var(--color-brown-dark); color: var(--color-cream-white); }

.section-header {
  max-width: 720px;
  margin: 0 auto var(--space-8);
  text-align: center;
}
.section-header--left { margin-left: 0; text-align: left; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-brown-dark);
  margin-bottom: var(--space-4);
}
.section--brown .eyebrow { color: var(--color-accent); }

.section-title {
  font-family: var(--font-sans);
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1.25;
  color: var(--color-text);
}
.section--brown .section-title { color: var(--color-cream-white); }
.section-title--xl { font-size: clamp(32px, 4.6vw, 54px); }
.section-title__highlight {
  display: inline-block;
  color: var(--color-brown-dark);
  font-size: 1.12em;
  transform-origin: center;
  animation: priceAttentionPulse 1.8s ease-in-out infinite;
}

.section-subtitle {
  margin-top: var(--space-4);
  font-size: clamp(16px, 1.6vw, 18px);
  color: var(--color-text-soft);
}
.section--brown .section-subtitle { color: rgba(248, 241, 229, 0.78); }

.divider {
  width: 64px;
  height: 4px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  margin: var(--space-4) auto 0;
}
.section-header--left .divider { margin-left: 0; }

.serif { font-family: var(--font-serif); font-weight: 400; }

/* Nút bấm */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 16px 32px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.3px;
  border: 2px solid transparent;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-3px); }
.btn:active { transform: translateY(-1px); }

.btn--primary {
  background: var(--color-brown);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover { background: var(--color-brown-dark); color: var(--color-cream-white); box-shadow: var(--shadow-md); }

.btn--outline {
  background: transparent;
  color: var(--color-brown-dark);
  border-color: var(--color-brown);
}
.btn--outline:hover { background: var(--color-brown); color: var(--color-text); box-shadow: var(--shadow-md); }

.btn--on-brown {
  background: var(--color-accent);
  color: var(--color-brown-dark);
  box-shadow: var(--shadow-md);
}
.btn--on-brown:hover { background: var(--color-cream-white); }

.btn--ghost-on-brown {
  background: transparent;
  color: var(--color-cream-white);
  border-color: var(--color-border-on-brown);
}
.btn--ghost-on-brown:hover { background: rgba(248, 241, 229, 0.12); border-color: var(--color-cream-white); }

/* Nút "Đăng ký" nhấp nháy phóng to nhẹ liên tục để thu hút sự chú ý */
@keyframes registerPulse {
  0%, 100% { transform: scale(1); box-shadow: var(--shadow-sm); }
  50% { transform: scale(1.045); box-shadow: 0 8px 20px rgba(138, 78, 39, 0.35); }
}
[data-open-register] { animation: registerPulse 2.4s ease-in-out infinite; }
[data-open-register]:hover,
[data-open-register]:focus-visible { animation-play-state: paused; }

.btn--block { width: 100%; }
.btn--lg { padding: 18px 40px; font-size: 16px; }
.btn--sm { padding: 10px 20px; font-size: 13px; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* Hiệu ứng xuất hiện khi cuộn trang */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1.is-visible { transition-delay: 0.08s; }
.reveal-delay-2.is-visible { transition-delay: 0.16s; }
.reveal-delay-3.is-visible { transition-delay: 0.24s; }
.reveal-delay-4.is-visible { transition-delay: 0.32s; }

/* ---------------------------------- */
/* 4. HEADER                           */
/* ---------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(248, 241, 229, 0.92);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: box-shadow var(--transition-base), border-color var(--transition-base), background var(--transition-base);
}
.header.is-scrolled {
  background: rgba(255, 253, 248, 0.96);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.nav__brand { display: flex; align-items: center; gap: var(--space-3); }
.nav__logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-brown);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}
.nav__logo-mark svg { width: 22px; height: 22px; }
.nav__brand-text {
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--color-brown-dark);
  line-height: 1.2;
}
.nav__brand-text span {
  display: block;
  font-family: var(--font-serif);
  font-weight: 400;
  font-style: italic;
  text-transform: none;
  font-size: 12px;
  color: var(--color-text-soft);
  letter-spacing: 0;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.nav__menu a {
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text);
  position: relative;
  padding: var(--space-2) 0;
  transition: color var(--transition-fast);
}
.nav__menu a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}
.nav__menu a:hover { color: var(--color-brown-dark); }
.nav__menu a:hover::after { transform: scaleX(1); }

.nav__actions { display: flex; align-items: center; gap: var(--space-4); }

.nav__toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-cream-white);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.nav__toggle span {
  width: 20px;
  height: 2px;
  background: var(--color-brown-dark);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-base);
}
.nav__toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.is-active span:nth-child(2) { opacity: 0; }
.nav__toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: var(--color-cream-white);
  z-index: 190;
  padding: var(--space-6);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
}
.mobile-menu.is-open { transform: translateX(0); }
.mobile-menu__list { display: flex; flex-direction: column; gap: var(--space-2); }
.mobile-menu__list a {
  display: block;
  padding: var(--space-4) var(--space-3);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-brown-dark);
  border-bottom: 1px solid var(--color-border);
}
.mobile-menu__actions { margin-top: var(--space-6); }

/* ---------------------------------- */
/* 5. HERO                             */
/* ---------------------------------- */
.hero { padding: var(--space-8) 0 0; background: var(--color-cream-bg); position: relative; }
.hero__top {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: var(--space-8);
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-cream-white);
  border: 1px solid var(--color-border);
  color: var(--color-brown-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 10px 18px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
}
.hero__badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-accent); }

.hero__title {
  margin-top: var(--space-5);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.2px;
  font-size: clamp(28px, 4.15vw, 54px);
  line-height: 1.15;
  color: var(--color-brown-dark);
  white-space: nowrap;
}
.hero__title .underline-accent {
  position: relative;
  white-space: nowrap;
}

.hero__desc {
  margin-top: var(--space-5);
  font-size: clamp(16px, 1.4vw, 18px);
  color: var(--color-text-soft);
  max-width: 660px;
}

.hero__formula {
  margin-top: var(--space-4);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-brown-dark);
  line-height: 1.7;
  max-width: 620px;
}
.hero__formula-arrow { color: var(--color-accent); font-weight: 700; margin: 0 2px; }
.hero__formula-steps { display: block; text-wrap: balance; }
.hero__formula-conclusion { display: block; margin-top: 4px; }
.hero__formula strong { color: var(--color-brown-dark); font-weight: 800; letter-spacing: 0.3px; }

.hero__actions {
  margin-top: var(--space-7);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.hero__meta {
  margin-top: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-text-soft);
  font-size: 14px;
}
.hero__meta strong { color: var(--color-brown-dark); }

.hero__image-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  height: 100%;
}
.hero__image-frame {
  position: relative;
  width: 100%;
  max-width: 440px;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(180deg, #EFE3CE 0%, #E4D3B4 100%);
  box-shadow: var(--shadow-lg);
}
.hero__image-frame img { width: 100%; height: 100%; object-fit: cover; }
.hero__image-tag {
  position: absolute;
  left: -18px;
  bottom: 28px;
  background: var(--color-cream-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  box-shadow: var(--shadow-md);
  max-width: 220px;
}
.hero__image-tag .name { font-weight: 800; color: var(--color-brown-dark); font-size: 15px; }
.hero__image-tag .role { font-size: 13px; color: var(--color-text-soft); margin-top: 2px; }

/* Stats bar */
.stats-bar {
  margin-top: var(--space-9);
  background: var(--color-brown-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-7) var(--space-6);
  color: var(--color-cream-white);
  box-shadow: var(--shadow-lg);
}
.stats-bar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}
.stat-item { text-align: center; padding: 0 var(--space-3); }
.stat-item + .stat-item { border-left: 1px solid var(--color-border-on-brown); }
.stat-item__number {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(30px, 3.2vw, 42px);
  color: var(--color-accent);
  line-height: 1;
}
.stat-item__label {
  margin-top: var(--space-3);
  font-size: 14px;
  color: rgba(248, 241, 229, 0.85);
  line-height: 1.4;
}
.stats-bar__footnote {
  margin: var(--space-6) auto 0;
  max-width: 780px;
  text-align: center;
  font-size: 14px;
  color: rgba(248, 241, 229, 0.7);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border-on-brown);
}
.hero__stats-wrap { padding: var(--space-8) 0; }

/* ---------------------------------- */
/* 6. SECTION 3 - ĐỐI TƯỢNG PHÙ HỢP     */
/* ---------------------------------- */
.audience__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.audience__grid .audience-card:nth-child(4),
.audience__grid .audience-card:nth-child(5) {
  grid-column: span 1;
}
.audience__grid { grid-auto-rows: 1fr; }
.audience-row-2 {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.audience-card {
  position: relative;
  background: var(--color-brown-dark);
  background-image: linear-gradient(160deg, var(--color-brown) 0%, var(--color-brown-dark) 100%);
  color: var(--color-cream-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.audience-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.audience-card__number {
  position: absolute;
  left: var(--space-5);
  bottom: var(--space-4);
  font-family: var(--font-serif);
  font-size: 88px;
  font-weight: 700;
  color: rgba(248, 241, 229, 0.14);
  line-height: 1;
  z-index: 0;
}
.audience-card__body { position: relative; z-index: 1; }
.audience-card__title {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: var(--space-3);
}
.audience-card__text {
  font-size: 14.5px;
  color: rgba(248, 241, 229, 0.82);
  line-height: 1.6;
}

.audience__cta { text-align: center; margin-top: var(--space-8); }

/* ---------------------------------- */
/* 7. SECTION 4 - SAU 30 BUỔI (nền nâu) */
/* ---------------------------------- */
.outcomes-map-card {
  background: var(--color-cream-white);
  color: var(--color-text);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
  box-shadow: var(--shadow-lg);
  margin-bottom: var(--space-7);
}
.outcomes-map-card__eyebrow {
  display: block;
  text-align: center;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--color-brown-dark);
  text-transform: uppercase;
  margin-bottom: var(--space-6);
}
.outcomes-map-card__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-7);
  align-items: stretch;
}
.outcomes-map-card__title {
  font-family: var(--font-serif);
  font-size: clamp(30px, 3vw, 40px);
  color: var(--color-brown-dark);
  margin: var(--space-3) 0 var(--space-4);
}
.outcomes-map-card__highlight {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.6;
}
.outcomes-map-card__note {
  margin-top: var(--space-4);
  font-size: 15px;
  color: var(--color-text-soft);
  padding-top: var(--space-4);
  border-top: 1px dashed var(--color-border);
}
.outcomes-map-card__tags { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-5); }
.outcomes-map-card__media { display: flex; }
.outcomes-map-card__media .curriculum-group__gallery { margin-top: 0; padding-top: 0; flex: 1; min-height: 280px; display: flex; }
.outcomes-map-card__media .curriculum-group__gallery-trigger { flex: 1; }
.outcomes-map-card__media .curriculum-group__gallery-frame { aspect-ratio: auto; height: 100%; }
.tag-pill {
  background: var(--color-cream-bg);
  border: 1px solid var(--color-border);
  color: var(--color-brown-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-full);
}

.outcomes__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.outcome-card {
  background: var(--color-cream-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.outcome-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--color-accent); }
.outcome-card__icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-cream-bg);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}
.outcome-card__icon svg { width: 26px; height: 26px; stroke: var(--color-brown-dark); }
.outcome-card__title { font-size: 19px; font-weight: 700; color: var(--color-brown-dark); margin-bottom: var(--space-3); }
.outcome-card__lead { font-size: 15px; font-weight: 600; color: var(--color-brown-dark); margin-bottom: var(--space-2); line-height: 1.5; }
.outcome-card__text { font-size: 14.5px; color: var(--color-text-soft); line-height: 1.6; }
.outcome-card__text strong { color: var(--color-brown-dark); font-weight: 700; }

/* ---------------------------------- */
/* 8. SECTION 5 - TẤM BẢN ĐỒ (nền nâu)  */
/* ---------------------------------- */
.map-section { background: var(--color-cream-bg); }
.map-section__intro {
  max-width: 760px;
  margin: 0 auto var(--space-7);
  text-align: center;
}
.map-section__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1.3;
  color: var(--color-brown-dark);
}

/* Chương trình học cụ thể */
.curriculum__eyebrow {
  text-align: center;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-brown-dark);
  margin-bottom: var(--space-6);
}
.curriculum__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.curriculum-group {
  background: var(--color-cream-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.curriculum-group--wide { grid-column: span 3; }
.curriculum-group__title {
  font-size: 16.5px;
  font-weight: 700;
  color: var(--color-brown-dark);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px dashed var(--color-border);
}
.curriculum-group__list { list-style: none; margin: 0; padding: 0; }
.curriculum-group__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  color: var(--color-text-soft);
  line-height: 1.65;
  margin-bottom: var(--space-3);
}
.curriculum-group__list li:last-child { margin-bottom: 0; }
.curriculum-group__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}
.curriculum-group__tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }

.curriculum-group__more {
  display: block;
  margin: var(--space-4) 0 0 auto;
  background: var(--color-cream-bg);
  border: 1px solid var(--color-border);
  color: var(--color-brown-dark);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  transition: background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}
.curriculum-group__more:hover { background: var(--color-brown-dark); color: var(--color-cream-white); box-shadow: var(--shadow-sm); }

.curriculum-group__gallery {
  margin-top: auto;
  padding-top: var(--space-5);
  position: relative;
  width: 100%;
}
.curriculum-group--wide .curriculum-group__gallery {
  max-width: 280px;
  align-self: center;
}
.curriculum-group__gallery-frame {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  position: relative;
  background: var(--color-cream-bg);
  border: 1px dashed var(--color-border);
}
.curriculum-group__gallery-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  color: var(--color-text-soft);
  font-size: 12.5px;
  text-align: center;
  padding: var(--space-3);
}
.curriculum-group__gallery-placeholder svg { width: 30px; height: 30px; stroke: var(--color-border); }
.curriculum-group__gallery-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.7s var(--ease), transform 0.4s var(--ease);
}
.curriculum-group__gallery-frame img.is-active { opacity: 1; }

.curriculum-group__gallery-trigger {
  display: block;
  width: 100%;
  border: none;
  background: none;
  padding: 0;
  margin: 0;
  cursor: zoom-in;
}
.curriculum-group__gallery-trigger:hover .curriculum-group__gallery-frame img.is-active { transform: scale(1.05); }
.curriculum-group__gallery-zoom {
  position: absolute;
  right: 10px;
  bottom: 10px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(45, 42, 38, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.85;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}
.curriculum-group__gallery-zoom svg { width: 15px; height: 15px; stroke: var(--color-cream-white); }
.curriculum-group__gallery-trigger:hover .curriculum-group__gallery-zoom,
.curriculum-group__gallery-trigger:focus-visible .curriculum-group__gallery-zoom {
  opacity: 1;
  transform: scale(1.1);
}
.curriculum-group__gallery-dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: var(--space-3);
}
.curriculum-group__gallery-dots button {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-border);
  border: none;
  padding: 0;
  transition: background var(--transition-fast), width var(--transition-fast);
}
.curriculum-group__gallery-dots button.is-active { background: var(--color-brown-dark); width: 16px; border-radius: var(--radius-full); }

.curriculum-modal__list { list-style: none; margin: 0; padding: 0; }
.curriculum-modal__list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.75;
  margin-bottom: var(--space-4);
}
.curriculum-modal__list li:last-child { margin-bottom: 0; }
.curriculum-modal__list li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ---------------------------------- */
/* 8b. LỘ TRÌNH HỌC 30 NGÀY (nền nâu)  */
/* ---------------------------------- */
.roadmap-section { background: var(--color-brown-dark); }

.roadmap__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}

.roadmap-card {
  background: rgba(248, 241, 229, 0.06);
  border: 1px solid var(--color-border-on-brown);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), background var(--transition-base);
}
.roadmap-card:hover { transform: translateY(-6px); background: rgba(248, 241, 229, 0.1); }

.roadmap-card__title {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--color-cream-white);
}
.roadmap-card__subtitle {
  margin-top: var(--space-2);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--color-accent);
  line-height: 1.5;
}
.roadmap-card__divider {
  width: 36px;
  height: 3px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  opacity: 0.6;
  margin: var(--space-4) 0;
}
.roadmap-card__label {
  font-weight: 700;
  font-size: 14px;
  color: var(--color-cream-white);
  margin-bottom: var(--space-1);
}
.roadmap-card__text {
  font-size: 13.5px;
  color: rgba(248, 241, 229, 0.75);
  line-height: 1.65;
  margin-bottom: var(--space-3);
}
.roadmap-card__list {
  list-style: none;
  margin: 0 0 var(--space-4);
  padding: 0;
}
.roadmap-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  font-weight: 600;
  color: rgba(248, 241, 229, 0.85);
  line-height: 1.6;
  margin-bottom: 6px;
}
.roadmap-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}
.roadmap-card__cta { margin-top: auto; align-self: flex-start; }

.roadmap-summary {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  background: var(--color-cream-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
}
.roadmap-summary__image {
  flex-shrink: 0;
  width: 160px;
  height: 160px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.roadmap-summary__image img { width: 100%; height: 100%; object-fit: cover; }
.roadmap-summary__image-btn {
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  border: none;
  background: none;
  cursor: zoom-in;
}
.roadmap-summary__image-btn img { transition: transform var(--transition-base); }
.roadmap-summary__image-btn:hover img { transform: scale(1.06); }
.roadmap-summary__content { flex: 1; min-width: 0; }
.roadmap-summary__title {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--color-brown-dark);
  margin-bottom: var(--space-2);
}
.roadmap-summary__desc { font-size: 15px; color: var(--color-text-soft); line-height: 1.6; }
.roadmap-summary__cta { flex-shrink: 0; }

/* Nội dung popup "Xem chi tiết" từng giai đoạn */
.roadmap-modal__goal {
  background: var(--color-cream-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  margin-bottom: var(--space-5);
}
.roadmap-modal__goal-label {
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--color-brown-dark);
  margin-bottom: var(--space-2);
}
.roadmap-modal__goal-text { font-size: 15px; font-weight: 600; color: var(--color-text); line-height: 1.6; }
.roadmap-modal__text { font-size: 15px; color: var(--color-text-soft); line-height: 1.75; margin-bottom: var(--space-4); }
.roadmap-modal__principle {
  background: linear-gradient(160deg, #F1E4C9 0%, #EAD8B4 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--color-brown-dark);
  margin-bottom: var(--space-5);
}
.roadmap-modal__group { margin-bottom: var(--space-5); }
.roadmap-modal__group:last-child { margin-bottom: 0; }
.roadmap-modal__group-heading {
  font-weight: 700;
  font-size: 15px;
  color: var(--color-brown-dark);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px dashed var(--color-border);
}
.roadmap-modal__group ul { list-style: none; margin: 0; padding: 0; }
.roadmap-modal__group li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  color: var(--color-text);
  line-height: 1.75;
  margin-bottom: var(--space-2);
}
.roadmap-modal__group li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ---------------------------------- */
/* 9. SECTION 6 - QUYỀN LỢI            */
/* ---------------------------------- */
.benefits__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}
.benefit-card {
  background: var(--color-cream-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  gap: var(--space-5);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.benefit-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--color-accent); }
.benefit-card__icon {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--color-cream-bg);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
}
.benefit-card__icon svg { width: 28px; height: 28px; stroke: var(--color-brown-dark); }
.benefit-card__title { font-size: 18px; font-weight: 700; color: var(--color-brown-dark); margin-bottom: var(--space-2); }
.benefit-card__value {
  display: inline-block;
  background: var(--color-cream-bg);
  border: 1px solid var(--color-accent);
  color: var(--color-brown-dark);
  font-size: 12.5px;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}
.benefit-card__text { font-size: 14.5px; color: var(--color-text-soft); line-height: 1.6; }

/* ---------------------------------- */
/* 10. SECTION 7 - GIẢNG VIÊN           */
/* ---------------------------------- */
.instructor__grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: var(--space-8);
  align-items: center;
}
.instructor__image-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3 / 4;
  background: linear-gradient(180deg, #EFE3CE 0%, #E4D3B4 100%);
  box-shadow: var(--shadow-lg);
}
.instructor__image-frame img { width: 100%; height: 100%; object-fit: cover; }

.instructor__quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(24px, 2.6vw, 32px);
  color: var(--color-brown-dark);
  line-height: 1.4;
  margin: var(--space-4) 0 var(--space-6);
}
.instructor__bio { margin-bottom: var(--space-6); }
.instructor__intro {
  font-size: 15.5px;
  color: var(--color-text-soft);
  line-height: 1.75;
  margin-bottom: var(--space-3);
}
.instructor__intro:last-child { margin-bottom: 0; }

.instructor__card {
  background: linear-gradient(160deg, #F1E4C9 0%, #EAD8B4 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.instructor__card-name {
  font-size: 17px;
  font-weight: 800;
  color: var(--color-brown-dark);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px dashed rgba(112, 69, 31, 0.3);
}
.instructor__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}
.instructor__stats .stat-item { text-align: left; padding: 0; }
.instructor__stats .stat-item + .stat-item { border-left: none; }
.instructor__stats .stat-item__number { color: var(--color-brown-dark); font-size: 28px; }
.instructor__stats .stat-item__label { color: var(--color-text-soft); }
.instructor__contact { margin-top: var(--space-6); }

/* ---------------------------------- */
/* 10b. LIÊN HỆ (dùng ở Giảng viên + Footer) */
/* ---------------------------------- */
.contact-links__label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-brown-dark);
  margin-bottom: var(--space-3);
}
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.contact-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 10px 18px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-cream-white);
  color: var(--color-brown-dark);
  font-weight: 700;
  font-size: 13.5px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
}
.contact-chip:hover {
  background: var(--color-brown);
  color: var(--color-text);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.contact-chip svg { width: 16px; height: 16px; flex-shrink: 0; }

/* Biến thể dùng trên nền nâu (Footer) */
.footer .contact-links__label { color: var(--color-accent); }
.footer .contact-chip {
  background: rgba(248, 241, 229, 0.06);
  border-color: var(--color-border-on-brown);
  color: var(--color-cream-white);
}
.footer .contact-chip:hover { background: var(--color-accent); color: var(--color-brown-dark); border-color: var(--color-accent); }

/* Popup mã QR Zalo */
.modal--center { text-align: center; }
.modal--center .modal__eyebrow,
.modal--center .modal__title { text-align: center; }
.zalo-contact-qr {
  max-width: 260px;
  margin: var(--space-5) auto;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
.zalo-contact-qr img { width: 100%; height: auto; display: block; }
.zalo-contact-hint { font-size: 13.5px; color: var(--color-text-soft); }

/* ---------------------------------- */
/* 11. SECTION 8 - TESTIMONIALS         */
/* ---------------------------------- */
.testimonial-proof-carousel { position: relative; padding: 0 68px; }
.testimonial-proof-track-viewport {
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x proximity;
  scroll-behavior: smooth;
  scrollbar-width: thin;
}
.testimonial-proof-track {
  display: flex;
  gap: var(--space-4);
  width: max-content;
  padding: var(--space-2) 0 var(--space-3);
}
.testimonial-proof-slide {
  flex: 0 0 auto;
  scroll-snap-align: start;
  height: 220px;
}
.testimonial-proof__item {
  position: relative;
  display: block;
  height: 100%;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-cream-white);
  box-shadow: var(--shadow-sm);
  cursor: zoom-in;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}
.testimonial-proof__item:hover,
.testimonial-proof__item:focus-visible {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
}
.testimonial-proof__item img {
  display: block;
  height: 100%;
  width: auto;
}
.testimonial-proof__badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--color-cream-white);
  color: var(--color-brown);
  font-size: 12px;
  letter-spacing: 1px;
  padding: 5px 9px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  line-height: 1;
}
.testimonial-proof__divider { margin-top: var(--space-8); margin-bottom: var(--space-6); }

.testimonial-carousel { position: relative; padding: 0 68px; }
.testimonial-track-viewport { overflow: hidden; }
.testimonial-track {
  display: flex;
  transition: transform 0.45s var(--ease);
}
.testimonial-slide {
  flex: 0 0 calc(100% / 3);
  padding: var(--space-3);
  display: flex;
}
.testimonial-card {
  background: var(--color-cream-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  width: 100%;
  transform: scale(0.94);
  opacity: 0.65;
  transition: transform var(--transition-base), opacity var(--transition-base), box-shadow var(--transition-base);
}
.testimonial-slide.is-active .testimonial-card {
  transform: scale(1);
  opacity: 1;
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}
.testimonial-card__quote-icon {
  display: block;
  font-family: var(--font-serif);
  font-size: 52px;
  line-height: 1;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}
.testimonial-card__text {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.7;
  flex-grow: 1;
}
.testimonial-card__person {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
}
.testimonial-card__avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--color-brown);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}
.testimonial-card__name { font-weight: 700; font-size: 14.5px; color: var(--color-brown-dark); }
.testimonial-card__role { font-size: 13px; color: var(--color-text-soft); }

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-cream-white);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  z-index: 5;
}
.carousel-btn:hover { background: var(--color-brown); box-shadow: var(--shadow-md); }
.carousel-btn:hover svg { stroke: var(--color-text); }
.carousel-btn svg { width: 20px; height: 20px; stroke: var(--color-brown-dark); transition: stroke var(--transition-fast); }
.carousel-btn--prev { left: 0; }
.carousel-btn--next { right: 0; }

.testimonials__dots { display: flex; justify-content: center; gap: var(--space-2); margin-top: var(--space-6); }
.testimonials__dots button {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--color-border); border: none; padding: 0;
  transition: background var(--transition-fast), width var(--transition-fast);
}
.testimonials__dots button.is-active { background: var(--color-brown); width: 22px; border-radius: var(--radius-full); }

.testimonials__footnote {
  text-align: center;
  margin-top: var(--space-6);
  font-size: 14px;
  color: var(--color-text-soft);
}

/* ---------------------------------- */
/* 11b. THỜI GIAN & HỌC PHÍ             */
/* ---------------------------------- */
.pricing-card {
  background: var(--color-brown-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--space-7);
  align-items: center;
}

.pricing-card__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}
.pricing-card__eyebrow::before {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--color-accent);
}
.pricing-card__title {
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 800;
  color: var(--color-cream-white);
  line-height: 1.3;
  margin-bottom: var(--space-4);
}
.pricing-card__desc {
  font-size: 15px;
  color: rgba(248, 241, 229, 0.78);
  line-height: 1.7;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-border-on-brown);
}
.pricing-card__specs { margin: 0; }
.pricing-card__spec-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-4);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border-on-brown);
}
.pricing-card__spec-row dt { font-size: 14px; color: rgba(248, 241, 229, 0.65); font-weight: 400; }
.pricing-card__spec-row dd { margin: 0; font-size: 14.5px; font-weight: 700; color: var(--color-cream-white); text-align: right; }

.pricing-card__price-box {
  background: var(--color-cream-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.pricing-card__price-eyebrow {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-text-soft);
  margin-bottom: var(--space-3);
}
.pricing-card__price-old {
  font-size: 16px;
  color: var(--color-text-soft);
  text-decoration: line-through;
  opacity: 0.75;
  margin-bottom: var(--space-1);
}
@keyframes priceAttentionPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}
.pricing-card__price-now {
  font-size: clamp(38px, 4.2vw, 50px);
  font-weight: 800;
  color: var(--color-brown-dark);
  line-height: 1.1;
  margin-bottom: var(--space-4);
  display: inline-block;
  transform-origin: left center;
  animation: priceAttentionPulse 1.8s ease-in-out infinite;
}
.pricing-card__price-suffix { font-size: 20px; font-weight: 700; }
.pricing-card__badge {
  display: inline-block;
  background: rgba(197, 138, 69, 0.16);
  color: var(--color-brown-dark);
  font-size: 16px;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
  animation: priceAttentionPulse 1.8s ease-in-out infinite;
}
.pricing-card__note {
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-3);
  font-size: 13.5px;
  color: var(--color-text-soft);
  line-height: 1.6;
  margin-bottom: var(--space-5);
}

/* ---------------------------------- */
/* 12. SECTION 9 - CTA ĐĂNG KÝ           */
/* ---------------------------------- */
.cta-section {
  background: var(--color-brown-dark);
  background-image: radial-gradient(circle at 15% 20%, rgba(197,138,69,0.16), transparent 45%), radial-gradient(circle at 85% 80%, rgba(197,138,69,0.12), transparent 45%);
  color: var(--color-cream-white);
  text-align: center;
}
.cta-section__title {
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.3;
  max-width: 820px;
  margin: 0 auto;
}
.cta-section__title span { display: block; color: var(--color-accent); }
.cta-section__desc {
  max-width: 620px;
  margin: var(--space-5) auto 0;
  color: rgba(248, 241, 229, 0.8);
  font-size: 16px;
  line-height: 1.7;
}
.cta-section__date {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
  padding: 10px 20px;
  border: 1px solid var(--color-border-on-brown);
  border-radius: var(--radius-full);
  font-weight: 700;
  letter-spacing: 1px;
  font-size: 14px;
  color: var(--color-accent);
}
.cta-section__actions { margin-top: var(--space-7); }

/* ---------------------------------- */
/* 13. SECTION 10 - FAQ                 */
/* ---------------------------------- */
.faq-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--space-4); }
.faq-item {
  background: var(--color-cream-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.faq-item.is-open { border-color: var(--color-accent); box-shadow: var(--shadow-sm); }
.faq-question {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  font-weight: 700;
  font-size: 16px;
  color: var(--color-text);
}
.faq-question__icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-cream-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.faq-question__icon::before,
.faq-question__icon::after {
  content: '';
  position: absolute;
  background: var(--color-brown-dark);
  transition: transform var(--transition-base), opacity var(--transition-base);
}
.faq-question__icon::before { width: 12px; height: 2px; }
.faq-question__icon::after { width: 2px; height: 12px; }
.faq-item.is-open .faq-question__icon::after { transform: rotate(90deg); opacity: 0; }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--ease);
}
.faq-answer__inner {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--color-text-soft);
  font-size: 15px;
  line-height: 1.7;
}

/* ---------------------------------- */
/* 14. FOOTER                          */
/* ---------------------------------- */
.footer { background: var(--color-brown-dark); color: rgba(248, 241, 229, 0.85); padding: var(--space-8) 0 var(--space-6); }
.footer__top {
  display: flex;
  justify-content: space-between;
  gap: var(--space-7);
  padding-bottom: var(--space-7);
  border-bottom: 1px solid var(--color-border-on-brown);
}
.footer__brand-text {
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.5px;
  color: var(--color-cream-white);
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}
.footer__desc { max-width: 340px; font-size: 14.5px; line-height: 1.7; }
.footer__col-title {
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}
.footer__menu { display: flex; flex-direction: column; gap: var(--space-3); }
.footer__menu a { font-size: 14.5px; transition: color var(--transition-fast); }
.footer__menu a:hover { color: var(--color-cream-white); }
.footer__bottom {
  padding-top: var(--space-5);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 13.5px;
  color: rgba(248, 241, 229, 0.6);
}

/* ==========================================================================
   MODAL ĐĂNG KÝ / THANH TOÁN
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(45, 42, 38, 0.55);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  z-index: 500;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}
.modal-overlay.is-open { opacity: 1; visibility: visible; }

.modal {
  background: var(--color-cream-white);
  border-radius: var(--radius-lg);
  max-width: 480px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  padding: var(--space-7);
  position: relative;
  transform: translateY(16px) scale(0.98);
  transition: transform var(--transition-base);
}
.modal-overlay.is-open .modal { transform: translateY(0) scale(1); }
.modal--wide { max-width: 680px; }
.modal--image { max-width: 860px; padding: var(--space-4); background: var(--color-cream-white); }
.modal--image img { display: block; width: 100%; height: auto; border-radius: var(--radius-md); }
.modal__close--on-image { top: calc(-1 * var(--space-4) - 8px); right: calc(-1 * var(--space-4) - 8px); background: var(--color-cream-white); box-shadow: var(--shadow-md); }

.modal__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-cream-bg);
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal__close svg { width: 16px; height: 16px; stroke: var(--color-text-soft); }

.modal__eyebrow { font-size: 13px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--color-brown-dark); }
.modal__title { font-size: 24px; font-weight: 800; color: var(--color-text); margin: var(--space-2) 0 var(--space-6); }

.form-field { margin-bottom: var(--space-5); }
.form-field label { display: block; font-size: 14px; font-weight: 700; color: var(--color-text); margin-bottom: var(--space-2); }
.form-field input {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-cream-bg);
  color: var(--color-text);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.form-field input:focus { border-color: var(--color-brown); background: var(--color-cream-white); }
.form-field__error { display: none; margin-top: var(--space-2); font-size: 13px; color: #B3401E; }
.form-field.has-error input { border-color: #B3401E; }
.form-field.has-error .form-field__error { display: block; }

.form-error-banner {
  display: none;
  background: #FBEAE3;
  border: 1px solid #E7B7A3;
  color: #8A3416;
  font-size: 13.5px;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-5);
}
.form-error-banner.is-visible { display: block; }

.payment-summary {
  background: var(--color-cream-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  margin-bottom: var(--space-5);
}
.payment-summary__row { display: flex; justify-content: space-between; align-items: center; font-size: 14.5px; padding: var(--space-2) 0; }
.payment-summary__row + .payment-summary__row { border-top: 1px dashed var(--color-border); }
.payment-summary__row .label { color: var(--color-text-soft); }
.payment-summary__row .value { font-weight: 700; color: var(--color-text); }
.payment-summary__row .value--code { color: var(--color-brown-dark); letter-spacing: 0.5px; }
.copy-btn {
  border: 1px solid var(--color-border);
  background: var(--color-cream-white);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-brown-dark);
  margin-left: var(--space-2);
}
.copy-btn:hover { background: var(--color-brown); color: var(--color-text); }

.payment-qr { text-align: center; margin-bottom: var(--space-5); }
.payment-qr img {
  width: 220px;
  height: 220px;
  margin: 0 auto var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  object-fit: contain;
  background: var(--color-white);
}
.payment-qr__hint { font-size: 13.5px; color: var(--color-text-soft); }

.payment-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  font-size: 14px;
  color: var(--color-brown-dark);
  font-weight: 600;
  padding: var(--space-4);
  background: var(--color-cream-bg);
  border-radius: var(--radius-sm);
}
.spinner {
  width: 18px; height: 18px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-brown);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

.modal__success-icon {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--color-cream-bg);
  border: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto var(--space-5);
}
.modal__success-icon svg { width: 36px; height: 36px; stroke: var(--color-brown-dark); }
.modal__success-title { text-align: center; font-size: 22px; font-weight: 800; color: var(--color-text); margin-bottom: var(--space-2); }
.modal__success-desc { text-align: center; font-size: 14.5px; color: var(--color-text-soft); margin-bottom: var(--space-6); }

.zalo-block { text-align: center; background: var(--color-cream-bg); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-6); margin-bottom: var(--space-5); }
.zalo-block img { width: 168px; height: 168px; margin: 0 auto var(--space-4); border-radius: var(--radius-sm); background: var(--color-white); border: 1px solid var(--color-border); }
.zalo-block__label { font-size: 14px; font-weight: 700; color: var(--color-brown-dark); margin-bottom: var(--space-4); }

.hidden { display: none !important; }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

/* ---- Header: chuyển sang menu hamburger sớm hơn breakpoint bố cục nội dung,
   vì logo + 5 mục menu + nút CTA cần nhiều chỗ hơn 1024px mới không bị vỡ dòng ---- */
@media (max-width: 1180px) {
  .nav__menu, .nav__actions .btn { display: none; }
  .nav__toggle { display: flex; }
}

/* ---- Tablet ---- */
@media (max-width: 1024px) {
  .container { padding: 0 var(--space-5); }
  .section { padding: var(--space-8) 0; }

  .hero__top { grid-template-columns: 1fr; }
  .hero__image-wrap { order: -1; max-width: 380px; margin: 0 auto; }
  .hero__desc { max-width: none; }

  .audience__grid, .audience-row-2 { grid-template-columns: repeat(2, 1fr); }

  .outcomes-map-card__grid { grid-template-columns: 1fr; text-align: left; }
  .outcomes__grid { grid-template-columns: repeat(3, 1fr); }

  .curriculum__grid { grid-template-columns: repeat(2, 1fr); }
  .curriculum-group--wide { grid-column: span 2; }

  .pricing-card { grid-template-columns: 1fr; }

  .instructor__grid { grid-template-columns: 1fr; }
  .instructor__image-frame { max-width: 340px; margin: 0 auto; }

  .testimonial-slide { flex: 0 0 50%; }

  .footer__top { flex-wrap: wrap; }
}

/* ---- Mobile ---- */
@media (max-width: 768px) {
  :root { --header-h: 72px; }
  .container { padding: 0 20px; }
  .section { padding: var(--space-7) 0; }
  .section-header { margin-bottom: var(--space-6); }

  .hero { padding-top: var(--space-6); }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; }
  .hero__image-tag { position: static; margin-top: var(--space-4); max-width: none; }
  .hero__image-frame { max-width: 300px; margin: 0 auto; }

  .stats-bar { padding: var(--space-6) var(--space-4); }
  .stats-bar__grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-5); }
  .stat-item:nth-child(2) { border-left: 1px solid var(--color-border-on-brown); }
  .stat-item:nth-child(3) { border-left: none; }
  .stat-item + .stat-item { border-left: none; }
  .stat-item:nth-child(even) { border-left: 1px solid var(--color-border-on-brown); }

  .audience__grid, .audience-row-2 { grid-template-columns: 1fr; }

  .curriculum__grid { grid-template-columns: 1fr; }
  .curriculum-group--wide { grid-column: span 1; }

  .roadmap-summary { flex-direction: column; text-align: center; }
  .roadmap-summary__image { width: 140px; height: 140px; }
  .roadmap-summary__cta { width: 100%; }
  .roadmap-summary__cta .btn { width: 100%; }

  .pricing-card { padding: var(--space-5); }
  .pricing-card__spec-row { flex-direction: column; gap: 2px; }
  .pricing-card__spec-row dd { text-align: left; }

  .outcomes-map-card { padding: var(--space-5); }
  .outcomes-map-card__tags { gap: var(--space-2); }
  .outcomes__grid { grid-template-columns: 1fr; }

  .benefits__grid { grid-template-columns: 1fr; }
  .benefit-card { flex-direction: column; }

  .instructor__stats { grid-template-columns: 1fr 1fr; gap: var(--space-4); }

  .testimonial-carousel { padding: 0 8px; }
  .testimonial-slide { flex: 0 0 100%; }
  .testimonial-proof-carousel { padding: 0 8px; }
  .testimonial-proof-slide { height: 170px; }
  .carousel-btn { display: none; }

  .cta-section__actions .btn { width: 100%; }

  .footer__top { flex-direction: column; gap: var(--space-6); }
  .footer__bottom { flex-direction: column; align-items: flex-start; }

  .modal { padding: var(--space-6) var(--space-5); }
}

@media (max-width: 380px) {
  .stats-bar__grid { grid-template-columns: 1fr 1fr; }
}