/*
  ================================
  1) Design Foundation
  - He mau chu dao do theo logo
  - Nhip section ro rang
  - Radius + shadow dong bo
  ================================
*/
:root {
  --primary: #ff3b48;
  --primary-600: #f42c3a;
  --primary-700: #d91f2b;
  --accent: #ffad37;
  --deep: #113f38;

  --bg: #ffffff;
  --surface: #ffffff;
  --surface-muted: #fbfcff;
  --surface-warm: #fff7f3;
  --surface-cool: #f5f9ff;

  --text: #1f2533;
  --muted: #636d82;
  --line: #e6ebf3;
  --line-strong: #d8deea;

  --radius-xl: 22px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 9px;

  --shadow-xs: 0 6px 16px rgba(22, 30, 48, 0.05);
  --shadow-sm: 0 10px 24px rgba(22, 30, 48, 0.08);
  --shadow-md: 0 18px 40px rgba(22, 30, 48, 0.12);
  --shadow-red: 0 20px 40px rgba(231, 34, 43, 0.24);

  --focus-ring: 0 0 0 4px rgba(231, 34, 43, 0.14);
  --ease: cubic-bezier(0.2, 0.65, 0.25, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0.001em;
  color: var(--text);
  background: var(--bg);
}

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

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3,
p {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Transition nhe cho interactive components */
button,
a,
.btn,
.nav-toggle,
.mode-card,
.reason-card,
.mentor-card,
.schedule-card,
.diff-item,
.quote-card,
.media-card,
.faq-item,
.cta-banner,
.table-wrap,
.audience-grid,
.mini-photo,
.web-thumb,
.curriculum-item,
.curriculum-summary,
.offer-card,
.register-card {
  transition:
    transform 0.28s var(--ease),
    box-shadow 0.28s var(--ease),
    border-color 0.28s var(--ease),
    background-color 0.28s var(--ease),
    color 0.28s var(--ease),
    opacity 0.28s var(--ease);
}

/* Focus ro rang de dung ban phim */
a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.container,
.narrow {
  width: min(1360px, 95vw);
  margin: 0 auto;
}

.narrow {
  width: min(1240px, 94vw);
}

/*
  ================================
  2) Section Rhythm & Hierarchy
  ================================
*/
.section {
  position: relative;
  isolation: isolate;
  padding: clamp(58px, 7.2vw, 102px) 0;
}

/* Tao khoang tach nhe giua cac section */
main > .section + .section {
  margin-top: 2px;
}

/* Nen mac dinh cho section thuong */
main > .section:not(.section-light):not(.hero) {
  background: linear-gradient(180deg, #ffffff 0%, #fcfdff 100%);
  border-top: 1px solid #edf1f7;
  border-bottom: 1px solid #edf1f7;
}

/* Nen xen ke cho section-light */
.section-light {
  background: linear-gradient(180deg, rgba(255, 72, 88, 0.05), rgba(255, 173, 55, 0.05)), var(--surface-muted);
  border-top: 1px solid #edf1f7;
  border-bottom: 1px solid #edf1f7;
}

/* Layer nen rieng de tao nhip thi giac */
#thong-tin.section-light {
  background: linear-gradient(180deg, rgba(255, 88, 102, 0.08), rgba(255, 255, 255, 0.95)), var(--surface-warm);
}

#nhan-duoc.section-light,
#trai-nghiem.section-light {
  background: linear-gradient(180deg, rgba(86, 145, 255, 0.08), rgba(255, 255, 255, 0.95)), var(--surface-cool);
}

#chuong-trinh.section-light,
#lich-khai-giang.section-light,
#dang-ky.section-light {
  background: linear-gradient(180deg, rgba(255, 72, 88, 0.07), rgba(255, 173, 55, 0.07)), var(--surface-warm);
}

.section-head {
  max-width: 980px;
  margin: 0 auto clamp(24px, 3vw, 38px);
  text-align: center;
}

.section-head h2 {
  margin-top: 8px;
  font-size: clamp(1.44rem, 3.1vw, 2.5rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.section-head p {
  margin-top: 10px;
  font-size: 0.98rem;
  color: var(--muted);
  line-height: 1.68;
}

/*
  Label pill style theo mau tham chieu:
  - vien mong + nen sang
  - text gradient theo mau thuong hieu
  - icon nhe ben trai
*/
.eyebrow,
.mode-ribbon {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 121, 130, 0.4);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 244, 238, 0.94)),
    linear-gradient(120deg, rgba(255, 102, 116, 0.08), rgba(255, 173, 55, 0.1));
  box-shadow:
    0 8px 18px rgba(255, 83, 94, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.95);
  font-size: 0.84rem;
  font-weight: 400;
  letter-spacing: 0.012em;
  text-transform: none;
  color: #d12835;
}

.eyebrow::before,
.mode-ribbon::before {
  content: "✦";
  font-size: 0.86rem;
  line-height: 1;
  color: #ff4a57;
  transform: translateY(-0.4px);
}

/*
  ================================
  3) Buttons / CTA / Badges
  ================================
*/
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #fff !important;
  border-color: rgba(255, 255, 255, 0.18);
	background: linear-gradient(120deg, #a91f1f, #c62828 45%, #ef6c00 100%);
  box-shadow: 0 12px 26px rgba(255, 69, 86, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 18px 34px rgba(255, 69, 86, 0.36);
}

.btn-ghost {
  color: var(--primary-700);
  border-color: rgba(231, 34, 43, 0.24);
  background: rgba(255, 255, 255, 0.92);
}

.btn-ghost:hover {
  background: #fff;
  border-color: rgba(231, 34, 43, 0.32);
}

.btn-hot {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.16);
  background: linear-gradient(120deg, #ff4a57, #ffab3b);
  box-shadow: 0 12px 28px rgba(255, 78, 88, 0.32);
}

/*
  ================================
  4) Header & Navigation
  ================================
*/
.site-header {
  position: relative;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid rgba(221, 227, 237, 0.9);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 80px;
	justify-content: space-between;
}

.brand {
  flex-shrink: 0;
}

.brand img {
  width: 262px;
  max-width: 54vw;
  filter: drop-shadow(0 6px 14px rgba(20, 28, 45, 0.1));
}

.nav-toggle {
  width: 42px;
  height: 42px;
  margin-left: auto;
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  background: #fff;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: #29344a;
  transform-origin: center;
}

.main-nav {
  position: fixed;
  top: 80px;
  left: 4vw;
  right: 4vw;
  display: grid;
  gap: 4px;
  padding: 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: var(--shadow-md);
  transform: translateY(-12px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.main-nav a {
  padding: 10px 12px;
  border-radius: 9px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #30384d;
}

.main-nav a:hover {
  color: var(--primary-700);
  background: rgba(231, 34, 43, 0.08);
}

body.nav-open .main-nav {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

body.nav-open .nav-toggle span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

body.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

body.nav-open .nav-toggle span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.header-inner .btn-hot {
  display: none;
}

/*
  ================================
  5) Hero: nhan manh CTA va hierarchy
  ================================
*/
.hero {
  position: relative;
  overflow: clip;
  background:
    radial-gradient(circle at 12% -18%, rgba(255, 75, 92, 0.22), transparent 45%),
    radial-gradient(circle at 88% -20%, rgba(255, 173, 55, 0.26), transparent 43%),
    linear-gradient(180deg, #fffbfa 0%, #f4f9ff 100%);
}

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

.hero-kicker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  width: fit-content;
  margin-inline: auto;
  min-height: 46px;
  padding: 0 20px 0 16px;
  border-radius: 999px;
  border: 1.5px solid #b8c7e9;
  background: linear-gradient(180deg, #f8fbff 0%, #eef3ff 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.95), 0 7px 16px rgba(95, 124, 179, 0.14);
  font-size: clamp(1rem, 1.25vw, 1.06rem);
  font-weight: 400;
  letter-spacing: 0;
  color: #6f7990;
}

.hero-kicker::before {
  content: "✦";
  font-size: 1.02rem;
  line-height: 1;
  color: #2f67f2;
  text-shadow: 0 2px 8px rgba(47, 103, 242, 0.3);
}

.hero-kicker .kicker-primary {
  color: #2f67f2;
  font-weight: 400;
}

.hero-kicker .kicker-muted {
  color: #7f889b;
  font-weight: 400;
}

.hero-kicker .kicker-accent {
  color: #f2a130;
  font-weight: 400;
}

.hero h1 {
  margin-top: 10px;
  font-size: clamp(2rem, 5vw, 3.7rem);
  line-height: 1.14;
  letter-spacing: -0.015em;
}

.hero h1 span {
  color: var(--primary-700);
}

.hero-lead {
  max-width: 74ch;
  margin: 14px auto 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.9vw, 1.08rem);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 18px;
}

.hero-meta li {
  min-height: 32px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(21, 43, 70, 0.12);
  background: rgba(255, 255, 255, 0.88);
  color: #4b566c;
  font-size: 0.84rem;
  font-weight: 500;
}

.hero-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  margin-top: clamp(24px, 3vw, 34px);
  padding: clamp(24px, 3.2vw, 36px);
  border-radius: var(--radius-xl);
  border: 1px solid #ffd4c6;
  text-align: left;
  color: #20304a;
  background:
    radial-gradient(circle at 84% 18%, rgba(255, 162, 105, 0.28), transparent 39%),
    radial-gradient(circle at 12% 82%, rgba(255, 114, 131, 0.15), transparent 44%),
    linear-gradient(150deg, #ffffff 0%, #fff8f3 45%, #ffeede 100%);
  box-shadow: 0 24px 52px rgba(255, 116, 95, 0.24);
}

/* The layer tao do sau cho panel hero ben phai */
.hero-card::before {
  content: "";
  position: absolute;
  left: -72px;
  top: -72px;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 99, 110, 0.22), rgba(255, 99, 110, 0));
}

.hero-card::after {
  content: "";
  position: absolute;
  right: -96px;
  bottom: -116px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 168, 92, 0.26), rgba(255, 168, 92, 0));
}

.hero-card > * {
  position: relative;
  z-index: 1;
}

.card-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 101, 115, 0.34);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 244, 238, 0.96)),
    linear-gradient(120deg, rgba(255, 104, 118, 0.1), rgba(255, 173, 55, 0.09));
  color: #d12937;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-transform: none;
  box-shadow: 0 9px 20px rgba(255, 95, 95, 0.14);
}

.hero-card h2 {
  margin-top: 12px;
  font-size: clamp(1.38rem, 2.55vw, 2.12rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: #1f2f49;
}

.hero-card p {
  margin-top: 9px;
  color: #5a6782;
  line-height: 1.78;
}

/* Preview panel de phan hero ben phai giong mockup UI hien dai */
.hero-preview {
  margin-top: 14px;
  padding: 14px;
  border: 1px solid #ffd6ca;
  border-radius: 14px;
  background: linear-gradient(160deg, #ffffff 0%, #fff3eb 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.96), 0 10px 24px rgba(255, 120, 96, 0.14);
}

.hero-preview-head {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
}

.hero-preview-head span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.hero-preview-head span:nth-child(1) {
  background: #ff5a66;
}

.hero-preview-head span:nth-child(2) {
  background: #ffb55a;
}

.hero-preview-head span:nth-child(3) {
  background: #7b9dff;
}

.hero-preview-line {
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(120deg, rgba(255, 97, 106, 0.18), rgba(255, 173, 90, 0.22));
}

.hero-preview-line + .hero-preview-line {
  margin-top: 8px;
}

.hero-preview .line-1 {
  width: 88%;
}

.hero-preview .line-2 {
  width: 70%;
}

.hero-preview .line-3 {
  width: 56%;
}

.hero-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.hero-preview-grid span {
  min-height: 34px;
  border-radius: 10px;
  border: 1px solid #ffd8c8;
  background: linear-gradient(150deg, #fff 0%, #fff6f1 100%);
}

.hero-avatars {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.hero-avatars span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  min-width: 50px;
  padding: 0 12px;
  border: 1px solid rgba(255, 118, 132, 0.34);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  font-size: 0.75rem;
  font-weight: 600;
  color: #cf2f3b;
}

/*
  ================================
  6) Shared Card System
  ================================
*/
.mode-grid,
.reason-grid,
.mentor-grid,
.quote-grid,
.diff-list,
.faq-list {
  display: grid;
  gap: clamp(12px, 2vw, 18px);
}

.mode-card,
.reason-card,
.mentor-card,
.schedule-card,
.diff-item,
.quote-card,
.table-wrap,
.audience-grid,
.faq-item,
.cta-banner {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-xs);
}

.mode-card {
  padding: 24px;
}

.mode-ribbon {
  min-height: 40px;
  padding: 0 16px;
  font-size: 0.79rem;
  font-weight: 400;
}

.mode-ribbon.offline {
  border-color: rgba(255, 112, 125, 0.5);
}

.mode-ribbon.online {
  border-color: rgba(255, 171, 67, 0.58);
}

.mode-ribbon.online::before {
  color: #f28d19;
}

.mode-card h3 {
  margin-top: 11px;
  font-size: 1.16rem;
  line-height: 1.36;
}

.mode-card ul {
  margin-top: 13px;
  display: grid;
  gap: 8px;
}

.mode-card li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
}

.mode-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

.reason-card,
.diff-item,
.quote-card {
  padding: 22px;
}

/* Lam dep section Tai sao chon khoa hoc + icon mau trong box */
#tai-sao .reason-grid {
  gap: 18px;
}

#tai-sao .reason-card {
  min-height: 192px;
  padding: 24px;
  border-color: #dbe3f2;
  background: linear-gradient(180deg, #ffffff 0%, #fcfdff 100%);
  box-shadow: 0 10px 24px rgba(46, 65, 110, 0.08);
}

#tai-sao .reason-card h3 {
  margin-top: 10px;
}

#tai-sao .reason-card p {
  margin-top: 10px;
  font-size: 1.02rem;
}

.reason-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  font-size: 1.25rem;
  box-shadow: 0 8px 18px rgba(80, 111, 188, 0.18);
}

#tai-sao .reason-card:nth-child(1) .reason-icon {
  background: linear-gradient(145deg, #eef4ff, #d7e7ff);
}

#tai-sao .reason-card:nth-child(2) .reason-icon {
  background: linear-gradient(145deg, #fff0f1, #ffdbe0);
}

#tai-sao .reason-card:nth-child(3) .reason-icon {
  background: linear-gradient(145deg, #fff6e8, #ffe7be);
}

.reason-card h3,
.diff-item h3,
.quote-card h3 {
  font-size: 1.06rem;
  line-height: 1.42;
}

.reason-card p,
.diff-item p,
.quote-card p {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.72;
}

.photo-banner {
  position: relative;
  overflow: hidden;
  margin-top: 18px;
  min-height: clamp(250px, 34vw, 360px);
  border-radius: var(--radius-lg);
  border: 1px solid #d9e3f2;
  background:
    linear-gradient(120deg, rgba(18, 35, 72, 0.14), rgba(18, 35, 72, 0.05)),
    url("https://images.unsplash.com/photo-1524995997946-a1c2e315a42f?auto=format&fit=crop&w=1800&q=80");
  background-size: cover;
  background-position: center 42%;
  box-shadow: 0 20px 44px rgba(25, 43, 82, 0.18);
  display: flex;
  align-items: flex-end;
  padding: 18px;
}

/* Layer anh de tao do sau nhung van giu anh tu nhien */
.photo-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(12, 24, 52, 0.24));
}

.photo-banner::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -70px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 181, 93, 0.26), rgba(255, 181, 93, 0));
}

.photo-banner p {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  max-width: 560px;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.64);
  background: rgba(255, 255, 255, 0.92);
  color: #1e2f4d;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.45;
  box-shadow: 0 10px 24px rgba(20, 37, 74, 0.16);
  backdrop-filter: blur(4px);
}

/*
  ================================
  7) Gallery / Image Cards
  ================================
*/
.benefit-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.media-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 174px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius-md);
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow-xs);
}

.media-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(16, 24, 40, 0.08), rgba(16, 24, 40, 0.82));
}

.media-card h3 {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 12px;
  color: #fff;
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.42;
  text-shadow: 0 3px 12px rgba(0, 0, 0, 0.4);
}

.tone-a {
  background-image: url("https://images.unsplash.com/photo-1461749280684-dccba630e2f6?auto=format&fit=crop&w=900&q=80");
}

.tone-b {
  background-image: url("https://images.unsplash.com/photo-1498050108023-c5249f4df085?auto=format&fit=crop&w=900&q=80");
}

.tone-c {
  background-image: url("https://images.unsplash.com/photo-1518770660439-4636190af475?auto=format&fit=crop&w=900&q=80");
}

.tone-d {
  background-image: url("https://images.unsplash.com/photo-1504639725590-34d0984388bd?auto=format&fit=crop&w=900&q=80");
}

.tone-e {
  background-image: url("https://images.unsplash.com/photo-1553877522-43269d4ea984?auto=format&fit=crop&w=900&q=80");
}

.tone-f {
  background-image: url("https://images.unsplash.com/photo-1454165804606-c3d57bc86b40?auto=format&fit=crop&w=900&q=80");
}

.audience-grid {
  padding: 24px;
  display: grid;
  gap: 14px;
}

.audience-grid ul {
  display: grid;
  gap: 9px;
}

.audience-grid li {
  position: relative;
  padding-left: 18px;
  color: #4b566d;
}

.audience-grid li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/*
  ================================
  8) Curriculum Upgrade
  ================================
*/
.curriculum-wrap {
  display: grid;
  gap: 18px;
}

.curriculum-list {
  display: grid;
  gap: 12px;
}

.curriculum-item {
  padding: 20px;
  border: 1px solid #e0e8f5;
  border-radius: 14px;
  background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
  box-shadow: 0 10px 24px rgba(30, 51, 98, 0.08);
}

.curriculum-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 33px;
  padding: 0 13px;
  border-radius: 999px;
  border: 1px solid rgba(255, 105, 119, 0.36);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 243, 236, 0.95)),
    linear-gradient(120deg, rgba(255, 93, 109, 0.12), rgba(255, 173, 55, 0.11));
  color: #d52b38;
  font-size: 0.8rem;
  font-weight: 600;
  box-shadow: 0 8px 16px rgba(255, 95, 95, 0.12);
}

.curriculum-item h3 {
  margin-top: 10px;
  font-size: 1.06rem;
  line-height: 1.4;
  color: #1f2c45;
}

.curriculum-item p {
  margin-top: 8px;
  color: #5d6981;
  line-height: 1.7;
}

.curriculum-summary {
  padding: 22px;
  border: 1px solid #e0e8f5;
  border-radius: 16px;
  background: linear-gradient(165deg, #ffffff 0%, #fff6ef 100%);
  box-shadow: 0 12px 26px rgba(34, 51, 92, 0.1);
}

.curriculum-summary h3 {
  font-size: 1.14rem;
  color: #21314e;
}

.curriculum-summary ul {
  margin-top: 12px;
  display: grid;
  gap: 10px;
}

.curriculum-summary li {
  position: relative;
  padding-left: 24px;
  color: #55627c;
}

.curriculum-summary li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  font-weight: 700;
  color: #2f67f2;
}

.curriculum-summary .btn {
  margin-top: 16px;
}

/*
  ================================
  9) Offer + Registration Form
  ================================
*/
.pricing-showcase {
  max-width: 1080px;
  margin: 0 auto;
}

.register-layout {
  display: flex;
  justify-content: center;
  gap: 18px;
  max-width: 760px;
  margin: 0 auto;
  width: 100%;
}

.offer-card {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 3.3vw, 36px);
  border: 1px solid rgba(255, 122, 132, 0.34);
  border-radius: 22px;
  background:
    radial-gradient(circle at 90% 10%, rgba(255, 194, 109, 0.3), transparent 36%),
    radial-gradient(circle at 6% 92%, rgba(255, 98, 120, 0.2), transparent 44%),
    linear-gradient(165deg, #ffffff 0%, #fff7f3 58%, #fffdf7 100%);
  box-shadow:
    0 24px 48px rgba(243, 74, 74, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.pricing-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 9px;
  background: linear-gradient(90deg, #ff4c59, #ff844d, #ffb341);
}

.pricing-card::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -54px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 146, 68, 0.26), rgba(255, 146, 68, 0));
  pointer-events: none;
}

.offer-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding-right: 8px;
}

.offer-old-label {
  color: #66758f;
  font-size: 0.96rem;
}

.offer-old-price {
  margin-top: 6px;
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
  font-weight: 700;
  color: #30405f;
  text-decoration: line-through;
  text-decoration-thickness: 2px;
  text-decoration-color: rgba(48, 64, 95, 0.75);
}

.offer-save {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  padding: 0 17px;
  border-radius: 999px;
  border: 1px solid rgba(255, 153, 53, 0.22);
  background: linear-gradient(130deg, #ff9d2e, #ff8435);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 12px 24px rgba(255, 138, 49, 0.3);
  margin-left: auto;
}

.offer-save::before {
  content: "✦";
  font-size: 0.84rem;
}

.offer-price {
  margin-top: 22px;
  font-size: clamp(2.2rem, 5vw, 3.55rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: #d72838;
}

.offer-price span {
  margin-left: 3px;
  font-size: clamp(1.08rem, 2.3vw, 1.62rem);
  font-weight: 600;
  color: #3f4f6a;
}

.offer-meta {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.offer-meta p {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 31px;
  padding: 0 13px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  color: #2d4268;
  border: 1px solid rgba(255, 116, 127, 0.28);
  background: linear-gradient(180deg, #fff 0%, #fff6ef 100%);
}

.offer-meta p::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(120deg, #ff5160, #ffad37);
  box-shadow: 0 0 0 3px rgba(255, 140, 85, 0.18);
}

.offer-list {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid rgba(221, 230, 248, 0.8);
  display: grid;
  gap: 12px;
}

.offer-list li {
  position: relative;
  padding-left: 32px;
  color: #2f3f5f;
  line-height: 1.6;
}

.offer-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 1px;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 0;
  background: linear-gradient(130deg, #ff4a58, #ff9d35);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(255, 87, 95, 0.28);
}

.offer-actions {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid rgba(221, 230, 248, 0.86);
  display: grid;
  gap: 10px;
}

.offer-actions .btn {
  min-height: 52px;
  border-radius: 14px;
  font-size: 0.98rem;
}

.offer-actions .btn-ghost {
  border-color: rgba(255, 103, 117, 0.34);
  color: #d32937;
  background: linear-gradient(180deg, #fff 0%, #fff7f2 100%);
}

.offer-actions .btn-primary {
  border-color: rgba(255, 255, 255, 0.22);
  background: linear-gradient(120deg, #ff4a57, #ff8d36);
  box-shadow: 0 14px 30px rgba(255, 95, 78, 0.3);
}

.register-card {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid #e0e8f5;
  border-radius: 16px;
  background: linear-gradient(180deg, #ffffff 0%, #fff9f5 100%);
  box-shadow: 0 12px 28px rgba(255, 96, 98, 0.12);
}

.register-card h3 {
  font-size: clamp(1.24rem, 2vw, 1.5rem);
  color: #1f2e49;
}

.register-card > p {
  margin-top: 8px;
  color: #5e6b84;
}

.register-form {
  margin-top: 14px;
  display: grid;
  gap: 12px;
}

.register-form label {
  display: grid;
  gap: 6px;
}

.register-form span {
  color: #303f5d;
  font-size: 0.9rem;
  font-weight: 600;
}

.register-form input,
.register-form select,
.register-form textarea {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid #d4def0;
  border-radius: 10px;
  background: #fff;
  color: #20304d;
  font: inherit;
}

.register-form textarea {
  min-height: 110px;
  padding: 12px 14px;
  resize: vertical;
}

.register-form input:focus,
.register-form select:focus,
.register-form textarea:focus {
  outline: none;
  border-color: #5f8dff;
  box-shadow: 0 0 0 3px rgba(47, 103, 242, 0.15);
}

.register-form .btn {
  width: 100%;
  margin-top: 2px;
}

.form-status {
  min-height: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: #2f67f2;
}

/*
  ================================
  10) Table / Mentor / Schedule
  ================================
*/
.table-wrap {
  padding: 20px;
  overflow-x: auto;
}

.table-wrap table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.table-wrap th,
.table-wrap td {
  padding: 13px;
  border-bottom: 1px solid #edf1f7;
  text-align: left;
  vertical-align: top;
}

.table-wrap th {
  color: var(--primary-700);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: rgba(231, 34, 43, 0.06);
}

.table-wrap tr:last-child td {
  border-bottom: 0;
}

.table-wrap .btn {
  margin-top: 16px;
}

.mentor-card {
  width: min(640px, 100%);
  margin: 0 auto;
  padding: 18px;
}

.mentor-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  min-height: 0;
  border-radius: 14px;
  margin-bottom: 14px;
  object-fit: cover;
  object-position: center;
  background-size: cover;
  background-position: center;
}

.mentor-card h3 {
  font-size: 1.08rem;
}

.mentor-points {
  margin-top: 10px;
  display: grid;
  gap: 10px;
}

.mentor-points li {
  position: relative;
  padding-left: 32px;
  color: var(--muted);
  line-height: 1.7;
}

.mentor-points li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 2px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  background: linear-gradient(130deg, #ff4a58, #ff9d35);
  box-shadow: 0 8px 16px rgba(255, 90, 87, 0.24);
}

.schedule-card {
  padding: 24px;
  border-color: rgba(231, 34, 43, 0.18);
  background: linear-gradient(180deg, rgba(255, 255, 255, 1), rgba(255, 251, 249, 0.95));
}

.schedule-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.schedule-head p {
  font-weight: 700;
  color: #2d3549;
}

.schedule-head span,
.schedule-head strong {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 0 11px;
  border-radius: 999px;
  font-size: 0.79rem;
  font-weight: 700;
}

.schedule-head span {
  color: #8f5000;
  background: rgba(246, 146, 30, 0.16);
}

.schedule-head strong {
  color: #fff;
  background: linear-gradient(120deg, var(--primary), var(--primary-600));
}

.schedule-card ul {
  margin-top: 14px;
  display: grid;
  gap: 8px;
}

.schedule-card li {
  position: relative;
  padding-left: 18px;
  color: #4f5a71;
}

.schedule-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

.schedule-card .btn {
  margin-top: 14px;
}

/*
  ================================
  9) Experience / CTA / FAQ
  ================================
*/
.mini-gallery,
.web-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.mini-photo,
.web-thumb {
  min-height: 98px;
  border-radius: 10px;
  border: 1px solid #fff;
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow-xs);
}

.p1,
.t1 {
  background-image: url("https://images.unsplash.com/photo-1517048676732-d65bc937f952?auto=format&fit=crop&w=900&q=80");
}

.p2,
.t2 {
  background-image: url("https://images.unsplash.com/photo-1522202176988-66273c2fd55f?auto=format&fit=crop&w=900&q=80");
}

.p3,
.t3 {
  background-image: url("https://images.unsplash.com/photo-1552664730-d307ca884978?auto=format&fit=crop&w=900&q=80");
}

.p4,
.t4 {
  background-image: url("https://images.unsplash.com/photo-1531482615713-2afd69097998?auto=format&fit=crop&w=900&q=80");
}

.p5,
.t5 {
  background-image: url("https://images.unsplash.com/photo-1516321497487-e288fb19713f?auto=format&fit=crop&w=900&q=80");
}

.p6,
.t6 {
  background-image: url("https://images.unsplash.com/photo-1573497491208-6b1acb260507?auto=format&fit=crop&w=900&q=80");
}

.p7,
.t7 {
  background-image: url("https://images.unsplash.com/photo-1521737604893-d14cc237f11d?auto=format&fit=crop&w=900&q=80");
}

.p8,
.t8 {
  background-image: url("https://images.unsplash.com/photo-1573164574572-cb89e39749b4?auto=format&fit=crop&w=900&q=80");
}

.p9,
.t9 {
  background-image: url("https://images.unsplash.com/photo-1542744173-8e7e53415bb0?auto=format&fit=crop&w=900&q=80");
}

.cta-banner {
  padding: clamp(24px, 3.8vw, 38px);
  text-align: center;
  border-color: rgba(231, 34, 43, 0.22);
  background:
    radial-gradient(circle at 15% 0%, rgba(231, 34, 43, 0.12), transparent 45%),
    radial-gradient(circle at 85% 0%, rgba(246, 146, 30, 0.12), transparent 40%),
    #fff;
}

.cta-banner h2 {
  font-size: clamp(1.44rem, 3vw, 2.28rem);
  line-height: 1.28;
}

.cta-banner p {
  max-width: 74ch;
  margin: 10px auto 0;
  color: var(--muted);
}

.cta-mockup {
  width: min(580px, 100%);
  min-height: 230px;
  margin: 18px auto 0;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.42);
  background:
    linear-gradient(140deg, rgba(231, 34, 43, 0.24), rgba(246, 146, 30, 0.2)),
    url("https://images.unsplash.com/photo-1467232004584-a241de8bcf5d?auto=format&fit=crop&w=1200&q=80");
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow-sm);
}

.cta-banner .btn {
  margin-top: 18px;
}

.faq-item {
  overflow: hidden;
}

.faq-question {
  position: relative;
  width: 100%;
  border: 0;
  text-align: left;
  background: transparent;
  padding: 17px 46px 17px 17px;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.52;
  color: #263048;
  cursor: pointer;
}

.faq-question::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary);
  font-size: 1.32rem;
  font-weight: 700;
}

.faq-item.open .faq-question::after {
  content: "-";
}

.faq-answer {
  max-height: 0;
  transition: max-height 0.3s var(--ease);
}

.faq-answer p {
  padding: 0 17px 17px;
  color: var(--muted);
}

/*
  ================================
  10) Footer + motion
  ================================
*/
.site-footer {
  padding-top: 36px;
  border-top: 1px solid #e5ebf5;
  background: linear-gradient(180deg, #fafbfe 0%, #f4f7fc 100%);
}

.footer-inner {
  text-align: center;
}

.footer-inner img {
  width: min(390px, 76vw);
  margin: 0 auto;
}

.footer-inner p {
  margin-top: 10px;
  color: #6b7487;
  font-size: 0.95rem;
}

.copyright {
  margin-top: 16px;
  padding: 14px 0 24px;
  text-align: center;
  color: #7d8596;
  font-size: 0.86rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.58s var(--ease), transform 0.58s var(--ease);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Hover tinh te de tang cam giac cao cap */
@media (hover: hover) {
  .mode-card:hover,
  .reason-card:hover,
  .mentor-card:hover,
  .schedule-card:hover,
  .diff-item:hover,
  .quote-card:hover,
  .table-wrap:hover,
  .audience-grid:hover,
  .faq-item:hover,
  .curriculum-item:hover,
  .curriculum-summary:hover,
  .offer-card:hover,
  .register-card:hover {
    transform: translateY(-3px);
    border-color: rgba(231, 34, 43, 0.24);
    box-shadow: var(--shadow-sm);
  }

  .media-card:hover,
  .mini-photo:hover,
  .web-thumb:hover {
    transform: translateY(-2px) scale(1.01);
    box-shadow: var(--shadow-md);
  }

  .cta-banner:hover {
    transform: translateY(-2px);
    border-color: rgba(231, 34, 43, 0.3);
    box-shadow: var(--shadow-md);
  }

  .offer-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 110, 122, 0.44);
    box-shadow:
      0 30px 56px rgba(243, 74, 74, 0.24),
      inset 0 1px 0 rgba(255, 255, 255, 0.9);
  }

  .offer-actions .btn-ghost:hover {
    border-color: rgba(255, 89, 104, 0.46);
    background: #fff;
  }

  .offer-actions .btn-primary:hover {
    box-shadow: 0 18px 34px rgba(255, 95, 78, 0.36);
  }
}

/*
  ================================
  11) Responsive Layout
  ================================
*/
@media (min-width: 700px) {
  .hero-actions {
    flex-direction: row;
    justify-content: center;
  }

  .curriculum-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .offer-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mode-grid,
  .mentor-grid,
  .reason-grid,
  .quote-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #giang-vien .mentor-grid {
    grid-template-columns: minmax(0, 1fr);
    justify-items: center;
  }

  .audience-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .benefit-gallery {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .media-card {
    min-height: 198px;
  }
}

@media (min-width: 1024px) {
  .nav-toggle {
    display: none;
  }

  .main-nav {
    position: static;
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    background: transparent;
  }

  .header-inner .btn-hot {
    display: inline-flex;
  }

  .curriculum-wrap {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .curriculum-summary {
    position: sticky;
    top: 106px;
  }

  .register-layout {
    max-width: 860px;
  }

  /* Hero desktop: chia cot de hierarchy manh hon */
  .hero .narrow {
    display: grid;
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    column-gap: 34px;
    align-items: center;
    text-align: left;
  }

  .hero-kicker,
  .hero h1,
  .hero-lead,
  .hero-actions,
  .hero-meta {
    grid-column: 1;
  }

  .hero-kicker {
    margin-inline: 0;
  }

  .hero-card {
    grid-column: 2;
    grid-row: 1 / span 5;
    margin-top: 0;
    align-self: stretch;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .hero-actions,
  .hero-meta {
    justify-content: flex-start;
  }

  .reason-grid,
  .quote-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .diff-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .diff-item:last-child {
    grid-column: 1 / -1;
  }

  .mini-photo,
  .web-thumb {
    min-height: 136px;
  }
}

@media (min-width: 1240px) {
  .section-head {
    margin-bottom: 36px;
  }

  .photo-banner {
    min-height: 360px;
  }

  .mentor-photo {
    min-height: 0;
  }
}

/* WordPress integration for reference LP on homepage */
body.home .site-main {
	padding-bottom: 0;
}

body.home .lp-sample-home {
	margin-top: -0.5rem;
}

body.home .hero-card-image .hero-photo-wrap {
	margin-top: 0.95rem;
	overflow: hidden;
	border-radius: 14px;
	border: 1px solid rgba(255, 255, 255, 0.3);
}

body.home .hero-card-image .hero-photo-wrap img {
	width: 100%;
	height: 220px;
	object-fit: cover;
}

body.home .lp-course-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: clamp(16px, 2.2vw, 24px);
}

body.home .lp-course-grid .course-card {
	display: flex;
	flex-direction: column;
	border: 1px solid #e6ebf3;
	border-radius: 14px;
	overflow: hidden;
	background: #fff;
	box-shadow: var(--shadow-sm);
	transition: transform 0.25s ease, box-shadow 0.25s ease;
}

body.home .lp-course-grid .course-card:hover {
	transform: translateY(-4px);
	box-shadow: var(--shadow-md);
}

body.home .lp-course-grid .course-card-media img {
	width: 100%;
	aspect-ratio: 16 / 10;
	object-fit: cover;
}

body.home .lp-course-grid .course-card-content {
	display: grid;
	gap: 0.75rem;
	padding: 1rem;
}

body.home .lp-course-grid .course-card-category {
	display: inline-flex;
	width: fit-content;
	padding: 0.26rem 0.68rem;
	border-radius: 999px;
	font-size: 0.74rem;
	font-weight: 700;
	color: #d12835;
	background: rgba(255, 72, 88, 0.1);
	border: 1px solid rgba(255, 72, 88, 0.2);
}

body.home .lp-course-grid .course-card-content h3 {
	margin: 0;
	font-size: 1.04rem;
	line-height: 1.45;
}

body.home .lp-course-grid .course-card-content h3 a {
	color: #1f2533;
}

body.home .lp-course-grid .course-card-content h3 a:hover {
	color: #d12835;
}

body.home .lp-course-grid .course-card-price-wrap {
	padding: 0.7rem 0.82rem;
	border: 1px solid #f3ddd4;
	border-radius: 12px;
	background: linear-gradient(120deg, #fff8f3, #fffdfb);
}

body.home .lp-course-grid .course-card-price-label {
	display: block;
	font-size: 0.72rem;
	font-weight: 700;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	color: #8d6b66;
}

body.home .lp-course-grid .course-card-price {
	display: block;
	font-size: 1.26rem;
	line-height: 1.2;
	font-weight: 800;
	color: #d12835;
}

body.home .lp-course-grid .course-card-actions {
	margin-top: 0.2rem;
}

body.home .lp-course-grid .course-detail-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 100%;
	min-height: 44px;
	padding: 0 0.92rem;
	border-radius: 999px;
	font-size: 0.9rem;
	font-weight: 700;
	color: #fff;
	background: linear-gradient(120deg, #ff3b48, #f42c3a);
	box-shadow: var(--shadow-red);
}

body.home .lp-course-grid .course-detail-btn:hover {
	color: #fff;
	transform: translateY(-1px);
}

body.home .lp-course-all-wrap {
	display: flex;
	justify-content: center;
	margin-top: 1rem;
}

@media (max-width: 1024px) {
	body.home .lp-course-grid {
		grid-template-columns: 1fr;
	}
}