/* ===== Nhân Bản Nhân Tài – MAVA ===== */
:root {
  --blue: #5BB0F7;          /* màu chính MAVA – dùng cho nền, biểu tượng */
  --blue-ink: #1769B0;      /* xanh đậm hơn cho chữ, đủ tương phản trên nền trắng */
  --blue-deep: #1E7BD0;
  --yellow: #FFC400;
  --yellow-soft: #FFF6D6;
  --ink: #4A4A4A;
  --ink-strong: #2B2B2B;
  --muted: #6B6B6B;
  --bg: #FFFFFF;
  --bg-alt: #F4F9FF;
  --line: #E3EDF7;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 6px 24px rgba(30, 80, 140, .08);
  --shadow-lg: 0 18px 50px rgba(30, 80, 140, .14);
  --nav-h: 68px;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px; line-height: 1.65; overflow-x: hidden;
}
img { max-width: 100%; display: block; }
[hidden] { display: none !important; }
h1, h2, h3, h4 { color: var(--ink-strong); line-height: 1.25; margin: 0; }
p { margin: 0; }
a { color: var(--blue-ink); }
button { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--blue-deep); outline-offset: 3px; border-radius: 6px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }

.skip-link { position: absolute; left: -999px; top: 8px; background: var(--ink-strong); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip-link:focus { left: 8px; }

.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 16px; }
.container-narrow { max-width: 820px; }
@media (min-width: 768px) { .container { padding: 0 28px; } }

.i { width: 24px; height: 24px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 12px 22px; border-radius: 999px; border: 2px solid transparent;
  font-weight: 700; font-size: 15.5px; line-height: 1.2; text-decoration: none; text-align: center;
  cursor: pointer; transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn .i { width: 20px; height: 20px; }
.btn-yellow { background: var(--yellow); color: var(--ink-strong); box-shadow: 0 6px 18px rgba(255, 196, 0, .35); }
.btn-yellow:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(255, 196, 0, .45); background: #FFCD26; }
.btn-outline { background: #fff; color: var(--blue-ink); border-color: var(--blue); }
.btn-outline:hover { background: var(--bg-alt); transform: translateY(-2px); }
.btn-sm { min-height: 44px; padding: 8px 18px; font-size: 14.5px; }
.btn-lg { min-height: 54px; padding: 14px 26px; font-size: 16px; }
.btn-xl { min-height: 60px; padding: 16px 34px; font-size: 18px; }
.btn-block { width: 100%; }

/* ===== Nav ===== */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, .92); backdrop-filter: saturate(160%) blur(10px); -webkit-backdrop-filter: saturate(160%) blur(10px); border-bottom: 1px solid transparent; transition: border-color .2s, box-shadow .2s; }
.nav.is-scrolled { border-color: var(--line); box-shadow: 0 4px 20px rgba(30, 80, 140, .06); }
.nav-inner { height: var(--nav-h); display: flex; align-items: center; gap: 20px; }
.brand { display: flex; align-items: center; min-height: 44px; text-decoration: none; margin-right: auto; }
.brand img { height: 40px; width: auto; }
.logo-text { font-weight: 800; font-size: 26px; letter-spacing: .04em; color: var(--blue); }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a:not(.btn) { color: var(--ink); text-decoration: none; font-weight: 600; font-size: 14.5px; padding: 10px 12px; border-radius: 10px; transition: color .15s, background .15s; }
.nav-links a:not(.btn):hover, .nav-links a.is-current { color: var(--blue-ink); background: var(--bg-alt); }
.nav-cta-mobile { display: none; }
.nav-toggle { display: none; width: 44px; height: 44px; border: 0; background: transparent; border-radius: 10px; cursor: pointer; padding: 11px 10px; flex-direction: column; justify-content: space-between; }
.nav-toggle span { display: block; height: 2.5px; border-radius: 2px; background: var(--ink-strong); transition: transform .25s, opacity .25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8.5px) rotate(-45deg); }

@media (max-width: 1023px) {
  .nav-toggle { display: flex; }
  .nav-cta { display: none; }
  .nav-links {
    position: absolute; top: var(--nav-h); left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 2px;
    background: #fff; padding: 10px 16px 18px; border-bottom: 1px solid var(--line); box-shadow: 0 16px 30px rgba(30, 80, 140, .12);
    transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity .2s, transform .2s, visibility .2s;
  }
  .nav-links.is-open { transform: none; opacity: 1; visibility: visible; }
  .nav-links a:not(.btn) { padding: 13px 12px; font-size: 16px; }
  .nav-cta-mobile { display: inline-flex; margin-top: 8px; }
}

/* ===== Sections ===== */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); }
@media (min-width: 768px) { .section { padding: 88px 0; } }
.section-title { font-size: clamp(26px, 5.4vw, 38px); font-weight: 800; text-align: center; letter-spacing: -.01em; max-width: 760px; margin: 0 auto; }
.section-sub { text-align: center; color: var(--muted); max-width: 640px; margin: 14px auto 0; font-size: 17px; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--blue-ink); background: #fff; border: 1px solid #CFE6FB; padding: 6px 14px; border-radius: 999px; }

.icon-badge { display: inline-grid; place-items: center; width: 52px; height: 52px; border-radius: 14px; background: #E5F2FE; color: var(--blue-ink); flex: none; }

/* Reveal */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.in { opacity: 1; transform: none; }

/* Placeholder ([[TODO]]) */
.todo { display: inline-block; background: var(--yellow-soft); border: 1.5px dashed #E0AC00; color: #7A5C00; font-size: 13.5px; font-weight: 600; padding: 4px 10px; border-radius: 8px; line-height: 1.45; }
.empty-box { display: grid; place-items: center; min-height: 120px; padding: 20px; border: 2px dashed #CADCEE; border-radius: var(--radius); background: rgba(255, 255, 255, .6); color: var(--muted); font-weight: 600; text-align: center; }

/* ===== 1. Hero ===== */
.hero { position: relative; overflow: hidden; background: linear-gradient(180deg, #EAF5FF 0%, #F7FBFF 70%, #fff 100%); padding: 40px 0 56px; }
.hero-beam { position: absolute; top: 0; right: 0; width: 70%; height: 100%; pointer-events: none; opacity: .7; }
.hero-grid { position: relative; display: grid; gap: 36px; align-items: center; }
.hero-title { font-size: clamp(40px, 11vw, 72px); font-weight: 800; line-height: 1.04; letter-spacing: -.02em; margin-top: 18px; text-transform: uppercase; }
.hero-title span { display: block; color: var(--blue-ink); position: relative; }
.hero-tagline { margin-top: 16px; font-size: clamp(20px, 4.6vw, 26px); font-weight: 700; color: var(--ink-strong); }
.hero-tagline::before { content: ""; display: inline-block; width: 28px; height: 4px; border-radius: 2px; background: var(--yellow); vertical-align: middle; margin-right: 12px; }
.hero-desc { margin-top: 14px; font-size: 17px; max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-visual { position: relative; }
.hero-photo-wrap { position: relative; border-radius: 26px; overflow: hidden; box-shadow: var(--shadow-lg); aspect-ratio: 3 / 2; background: #DDEBF8; }
.hero-photo-wrap::after { content: ""; position: absolute; inset: 0; border-radius: inherit; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .5); }
.hero-photo-wrap img { width: 100%; height: 100%; object-fit: cover; }
.hero-chain { position: absolute; left: 50%; bottom: -20px; transform: translateX(-50%); display: flex; align-items: center; gap: 8px; white-space: nowrap; background: #fff; padding: 10px 18px; border-radius: 999px; box-shadow: var(--shadow); font-weight: 700; font-size: 14px; color: var(--ink-strong); }
.hero-chain i { font-style: normal; color: #D9A300; }
.stats { list-style: none; padding: 0; margin: 52px 0 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.stats:empty { display: none; }
.stat { background: #fff; border-radius: var(--radius-sm); padding: 18px 16px; box-shadow: var(--shadow); border-top: 4px solid var(--yellow); }
.stat strong { display: block; font-size: clamp(28px, 7vw, 36px); font-weight: 800; color: var(--ink-strong); line-height: 1.1; }
.stat span { font-size: 14.5px; color: var(--muted); }
.stats[data-count="1"] { grid-template-columns: minmax(0, 320px); justify-content: center; }
@media (min-width: 768px) {
  .stats { grid-template-columns: repeat(var(--cols, 4), minmax(0, 1fr)); gap: 18px; }
  .stats[data-count="1"] { grid-template-columns: minmax(0, 320px); }
}
@media (min-width: 1024px) {
  .hero { padding: 64px 0 72px; }
  .hero-grid { grid-template-columns: 1.05fr 1fr; gap: 56px; }
}

/* ===== 2. Vấn đề ===== */
.problem-grid { display: grid; gap: 14px; margin-top: 36px; }
.problem-card { display: flex; gap: 16px; align-items: flex-start; background: #fff; border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); border: 1px solid var(--line); }
.problem-card .icon-badge { background: #FFF1C2; color: #8A6A00; }
.problem-card p { font-size: 16px; color: var(--ink-strong); padding-top: 3px; }
@media (min-width: 768px) { .problem-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; } }
@media (min-width: 1024px) {
  .problem-grid { grid-template-columns: repeat(6, 1fr); }
  .problem-card { grid-column: span 2; flex-direction: column; padding: 26px; }
  .problem-card:nth-child(4) { grid-column: 2 / span 2; }
}
.punchline { max-width: 820px; margin: 40px auto 0; text-align: center; font-weight: 700; font-size: clamp(18px, 3.6vw, 22px); color: var(--ink-strong); line-height: 1.55; }
.punchline mark { background: linear-gradient(transparent 58%, #FFE27A 58%); color: inherit; padding: 0 2px; }

/* ===== 3. Lộ trình ===== */
.chain { list-style: none; padding: 0; margin: 40px 0 0; display: flex; flex-direction: column; align-items: stretch; gap: 6px; }
.chain-step { position: relative; background: #fff; border: 2px solid #CFE6FB; border-radius: var(--radius); padding: 22px 22px 22px 84px; box-shadow: var(--shadow); }
.chain-num { position: absolute; left: 20px; top: 50%; transform: translateY(-50%); width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center; background: var(--blue); color: #fff; font-weight: 800; font-size: 20px; }
.chain-step h3 { font-size: 20px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--blue-ink); }
.chain-step p { margin-top: 4px; }
.chain-arrow { display: grid; place-items: center; height: 30px; color: #D9A300; }
.chain-arrow svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; transform: rotate(90deg); }
@media (min-width: 900px) {
  .chain { flex-direction: row; align-items: stretch; gap: 0; }
  .chain-step { flex: 1; padding: 30px 24px 26px; text-align: center; }
  .chain-num { position: static; transform: none; margin: 0 auto 14px; width: 56px; height: 56px; font-size: 22px; }
  .chain-arrow { width: 48px; height: auto; }
  .chain-arrow svg { transform: none; }
}
.result-box { display: flex; gap: 14px; align-items: flex-start; margin: 26px auto 0; max-width: 820px; background: var(--yellow-soft); border: 1.5px solid #FFE07A; border-radius: var(--radius); padding: 20px 22px; color: var(--ink-strong); font-size: 17px; }
.result-box .i { color: #B88A00; width: 28px; height: 28px; margin-top: 1px; }
.benefit-grid { display: grid; gap: 16px; margin-top: 36px; }
.benefit-col { background: var(--bg-alt); border-radius: var(--radius); padding: 26px 22px; }
.benefit-col h3 { display: flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 800; color: var(--blue-ink); margin-bottom: 14px; }
@media (min-width: 768px) { .benefit-grid { grid-template-columns: 1fr 1fr; gap: 22px; } .benefit-col { padding: 30px; } }

.check-list, .dot-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.check-list li { position: relative; padding-left: 32px; }
.check-list li::before { content: ""; position: absolute; left: 0; top: 3px; width: 21px; height: 21px; border-radius: 50%; background: var(--blue) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / 13px no-repeat; }
.dot-list li { position: relative; padding-left: 20px; }
.dot-list li::before { content: ""; position: absolute; left: 2px; top: 10px; width: 8px; height: 8px; border-radius: 50%; background: var(--mod, var(--blue)); }

/* ===== 4. Modules ===== */
.mod-tabs { display: none; }
.mod-list { margin-top: 32px; display: grid; gap: 14px; }
.mod-panel { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--line); border-top: 5px solid var(--mod); overflow: hidden; }
.mod-head { display: flex; align-items: center; gap: 14px; width: 100%; min-height: 72px; padding: 16px 18px; background: transparent; border: 0; text-align: left; cursor: pointer; }
.mod-num { font-weight: 800; font-size: 34px; line-height: 1; color: var(--mod); letter-spacing: -.02em; flex: none; }
.mod-head-text { flex: 1; font-weight: 800; font-size: 17px; color: var(--ink-strong); line-height: 1.3; }
.mod-kicker { display: block; font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--mod-ink); margin-bottom: 2px; }
.mod-chev { width: 32px; height: 32px; border-radius: 50%; background: var(--mod-soft); flex: none; position: relative; transition: transform .25s; }
.mod-chev::before { content: ""; position: absolute; left: 11px; top: 9px; width: 8px; height: 8px; border-right: 2.5px solid var(--mod-ink); border-bottom: 2.5px solid var(--mod-ink); transform: rotate(45deg); }
.mod-panel.is-open .mod-chev { transform: rotate(180deg); }
.mod-body { display: none; padding: 0 18px 22px; }
.mod-panel.is-open .mod-body { display: block; }
.mod-intro { display: none; }
.mod-lead { font-size: 17px; font-weight: 600; color: var(--mod-ink); background: var(--mod-soft); border-radius: var(--radius-sm); padding: 12px 16px; }
.mod-body > .mod-lead-mobile { margin-bottom: 14px; }
.mod-grid { display: grid; gap: 14px; margin-top: 16px; }
.mod-block { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 18px; }
.mod-block h4 { font-size: 13px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--mod-ink); margin-bottom: 10px; }
.format-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.format-tags span { font-size: 13px; font-weight: 600; padding: 4px 10px; border-radius: 999px; background: var(--bg-alt); border: 1px solid #D6E8F9; color: var(--ink-strong); }
.format-tags .tag-soon { background: #FFF1C2; border-color: #FFE07A; color: #6E5300; }
.format-tags .tag-ok { background: #E3F6EA; border-color: #BFE7CC; color: #1D6B3A; }
.mod-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.mod-actions .btn { flex: 1 1 240px; }

@media (max-width: 767px) {
  .mod-body .mod-intro { display: block; }
  .mod-body .mod-intro .mod-num, .mod-body .mod-intro h3 { display: none; }
}
@media (min-width: 768px) {
  .mod-tabs { display: flex; justify-content: center; gap: 10px; margin-top: 32px; flex-wrap: wrap; }
  .mod-tab { display: inline-flex; align-items: center; gap: 10px; min-height: 52px; padding: 10px 22px; border-radius: 999px; border: 2px solid var(--line); background: #fff; font-weight: 700; font-size: 15.5px; cursor: pointer; transition: all .2s; }
  .mod-tab b { font-weight: 800; color: var(--blue-ink); }
  .mod-tab:hover { border-color: var(--blue); }
  .mod-tab.is-active { background: var(--ink-strong); border-color: var(--ink-strong); color: #fff; }
  .mod-tab.is-active b { color: var(--yellow); }
  .mod-list { margin-top: 24px; display: block; }
  .mod-panel { display: none; }
  .mod-panel.is-active { display: block; }
  .mod-head { display: none; }
  .mod-body, .mod-panel .mod-body { display: block; padding: 34px; }
  .mod-intro { display: flex; align-items: center; gap: 24px; }
  .mod-num-lg { font-size: 84px; }
  .mod-intro h3 { font-size: 28px; font-weight: 800; margin-bottom: 10px; }
  .mod-grid { grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 26px; }
  .mod-block-wide, .mod-grid .mod-block:first-child { grid-column: 1 / -1; }
  .mod-actions .btn { flex: 0 0 auto; }
}
@media (min-width: 1024px) {
  .mod-body, .mod-panel .mod-body { padding: 44px; }
  .mod-grid { grid-template-columns: 1fr 1.7fr; }
  .mod-grid .mod-block:nth-child(1) { grid-column: 1; grid-row: 1; }
  .mod-block-wide { grid-column: 2; grid-row: 1 / span 3; }
  .mod-grid .mod-block:nth-child(3) { grid-column: 1; grid-row: 2; }
  .mod-grid .mod-block:nth-child(4) { grid-column: 1; grid-row: 3; }
}

/* ===== 5. Gói ===== */
.plan-grid { display: grid; gap: 22px; margin-top: 36px; max-width: 940px; margin-left: auto; margin-right: auto; }
.plan-card { position: relative; display: flex; flex-direction: column; background: #fff; border: 2px solid var(--line); border-radius: 22px; padding: 30px 24px 24px; box-shadow: var(--shadow); }
.plan-card h3 { font-size: 22px; font-weight: 800; margin-bottom: 18px; padding-right: 8px; }
.plan-card .check-list { flex: 1; }
.plan-price { margin: 22px 0 16px; padding-top: 18px; border-top: 1px dashed #D6E3F0; font-size: 22px; font-weight: 800; color: var(--blue-ink); }
.plan-featured { border-color: var(--yellow); box-shadow: 0 18px 46px rgba(255, 196, 0, .22); }
.plan-featured .check-list li::before { background-color: #E0AC00; }
.plan-badge { position: absolute; top: -15px; left: 24px; background: var(--yellow); color: var(--ink-strong); font-weight: 800; font-size: 13px; letter-spacing: .06em; text-transform: uppercase; padding: 6px 14px; border-radius: 999px; box-shadow: 0 6px 14px rgba(255, 196, 0, .35); }
@media (min-width: 768px) { .plan-grid { grid-template-columns: 1fr 1.12fr; align-items: stretch; } .plan-card { padding: 36px 32px 30px; } }

/* ===== 6. Hình thức ===== */
.format-grid { display: grid; gap: 18px; margin-top: 36px; }
.format-card { background: #fff; border-radius: var(--radius); padding: 26px 22px; box-shadow: var(--shadow); border: 1px solid var(--line); }
.format-card h3 { font-size: 20px; font-weight: 800; margin: 14px 0 6px; }
.format-card dl { margin: 0; display: grid; }
.format-card dt { font-size: 12.5px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--blue-ink); margin-top: 14px; }
.format-card dd { margin: 3px 0 0; }
.status { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 700; padding: 4px 12px; border-radius: 999px; }
.status::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.status-open { background: #E3F6EA; color: #1D6B3A; }
.status-soon { background: #FFF1C2; color: #6E5300; }
.status-list { display: flex; flex-direction: column; gap: 6px; align-items: flex-start; }
.status-list .status b { font-weight: 800; }
@media (min-width: 900px) { .format-grid { grid-template-columns: repeat(3, 1fr); gap: 22px; } .format-card { padding: 30px 28px; } }

/* ===== 7. Khác biệt ===== */
.diff-grid { display: grid; gap: 14px; margin-top: 36px; }
.diff-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 22px; box-shadow: var(--shadow); transition: transform .2s, box-shadow .2s; }
.diff-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.diff-card h3 { font-size: 18px; font-weight: 800; margin: 14px 0 6px; }
@media (min-width: 640px) { .diff-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) {
  .diff-grid { grid-template-columns: repeat(6, 1fr); gap: 20px; }
  .diff-card { grid-column: span 2; }
  .diff-card:nth-child(4) { grid-column: 2 / span 2; }
}
.big-quote { margin: 48px auto 0; text-align: center; font-size: clamp(30px, 7vw, 52px); font-weight: 800; color: var(--blue-ink); letter-spacing: -.01em; line-height: 1.2; position: relative; padding-bottom: 20px; }
.big-quote::after { content: ""; position: absolute; left: 50%; bottom: 0; width: 80px; height: 5px; margin-left: -40px; border-radius: 3px; background: var(--yellow); }

/* ===== 8. Giảng viên ===== */
.trainer-grid { display: grid; gap: 22px; margin-top: 40px; }
.trainer-card { background: #fff; border-radius: 22px; padding: 30px 24px; box-shadow: var(--shadow); text-align: center; border: 1px solid var(--line); }
.trainer-photo { width: 148px; height: 148px; border-radius: 50%; object-fit: cover; margin: 0 auto; border: 5px solid #fff; box-shadow: 0 0 0 3px var(--blue), var(--shadow); background: #E5F2FE; }
.trainer-photo-empty { display: grid; place-items: center; font-size: 13px; color: var(--muted); font-weight: 600; padding: 12px; }
.trainer-card h3 { font-size: 22px; font-weight: 800; margin-top: 20px; }
.trainer-title { color: var(--blue-ink); font-weight: 700; margin-top: 4px; }
.trainer-card .check-list { text-align: left; margin-top: 18px; padding-top: 18px; border-top: 1px dashed #D6E3F0; }
@media (min-width: 768px) { .trainer-grid { grid-template-columns: 1fr 1fr; gap: 28px; } .trainer-card { padding: 36px 34px; } }

/* ===== 9. Khách hàng ===== */
.chips { list-style: none; padding: 0; margin: 26px 0 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.chips li { padding: 8px 18px; border-radius: 999px; background: var(--bg-alt); border: 1px solid #CFE6FB; color: var(--blue-ink); font-weight: 700; font-size: 14.5px; }
.logo-strip { margin-top: 32px; display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 14px; }
.logo-strip .logo-item { display: grid; place-items: center; height: 92px; padding: 14px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); }
.logo-strip img { max-height: 60px; width: auto; object-fit: contain; filter: grayscale(1); opacity: .7; transition: filter .25s, opacity .25s; }
.logo-strip .logo-item:hover img { filter: none; opacity: 1; }
.logo-strip .empty-box { grid-column: 1 / -1; min-height: 92px; }
.gallery { margin-top: 26px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.gallery button { position: relative; display: block; padding: 0; border: 0; border-radius: var(--radius-sm); overflow: hidden; cursor: zoom-in; aspect-ratio: 4 / 3; background: #E5F2FE; }
.gallery button img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.gallery button:hover img { transform: scale(1.05); }
.gallery .empty-box { grid-column: 1 / -1; }
@media (min-width: 768px) {
  .gallery { grid-template-columns: repeat(3, 1fr); gap: 14px; }
  .gallery button:first-child { grid-column: span 2; grid-row: span 2; aspect-ratio: auto; }
}

/* ===== 10. Cảm nhận ===== */
.slider { display: grid; gap: 16px; margin-top: 32px; }
.slider .empty-box { min-height: 140px; }
.video-card { display: block; text-decoration: none; color: inherit; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--line); transition: transform .2s; }
.video-card:hover { transform: translateY(-4px); }
.video-cover { position: relative; aspect-ratio: 16 / 9; background: #DDEBF8; }
.video-cover img { width: 100%; height: 100%; object-fit: cover; }
.video-play { position: absolute; inset: 0; margin: auto; width: 64px; height: 64px; border-radius: 50%; background: var(--yellow); display: grid; place-items: center; box-shadow: 0 8px 20px rgba(0, 0, 0, .25); }
.video-play::before { content: ""; margin-left: 5px; border-left: 20px solid var(--ink-strong); border-top: 12px solid transparent; border-bottom: 12px solid transparent; }
.video-meta, .quote-card figcaption { padding: 16px 18px; }
.person-name { font-weight: 800; color: var(--ink-strong); display: block; }
.person-role { font-size: 14px; color: var(--muted); }
.quote-card { margin: 0; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--line); display: flex; flex-direction: column; }
.quote-card blockquote { margin: 0; padding: 26px 22px 0; flex: 1; font-size: 16.5px; color: var(--ink-strong); position: relative; }
.quote-card blockquote::before { content: "“"; display: block; font-size: 56px; line-height: .6; color: var(--blue); font-weight: 800; margin-bottom: 8px; }
@media (max-width: 767px) {
  .slider.has-items { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 14px; margin-left: -16px; margin-right: -16px; padding: 4px 16px 12px; scrollbar-width: none; }
  .slider.has-items::-webkit-scrollbar { display: none; }
  .slider.has-items > * { flex: 0 0 82%; scroll-snap-align: start; }
}
@media (min-width: 768px) { .slider.has-items { grid-template-columns: repeat(3, 1fr); gap: 20px; } }

/* ===== 11. Quy trình ===== */
.steps { list-style: none; padding: 0; margin: 40px auto 0; max-width: 720px; position: relative; display: grid; gap: 18px; }
.steps::before { content: ""; position: absolute; left: 25px; top: 26px; bottom: 26px; width: 3px; background: linear-gradient(var(--blue), var(--yellow)); border-radius: 2px; }
.steps li { position: relative; display: flex; gap: 18px; align-items: flex-start; }
.step-num { position: relative; z-index: 1; flex: none; width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; background: #fff; border: 3px solid var(--blue); color: var(--blue-ink); font-weight: 800; font-size: 20px; }
.steps li:last-child .step-num { border-color: var(--yellow); color: #8A6A00; }
.steps h3 { font-size: 18px; font-weight: 800; margin: 2px 0 4px; }
.steps a { font-weight: 700; }
@media (min-width: 1024px) {
  .steps { max-width: none; grid-template-columns: repeat(4, 1fr); gap: 20px; }
  .steps::before { left: 10%; right: 10%; top: 25px; bottom: auto; width: auto; height: 3px; background: linear-gradient(90deg, var(--blue), var(--yellow)); }
  .steps li { flex-direction: column; align-items: center; text-align: center; }
}

/* ===== 13. CTA cuối + Footer ===== */
.final-cta { position: relative; overflow: hidden; background: linear-gradient(135deg, var(--blue) 0%, var(--blue-deep) 100%); color: #fff; padding: 72px 0; text-align: center; }
.final-inner { position: relative; }
.final-cta h2 { color: #fff; font-size: clamp(26px, 5.6vw, 40px); font-weight: 800; max-width: 760px; margin: 0 auto; text-shadow: 0 1px 2px rgba(0, 40, 90, .25); }
.final-cta p { margin: 14px auto 30px; font-size: 18px; max-width: 560px; text-shadow: 0 1px 2px rgba(0, 40, 90, .25); }
.cta-lighthouse { position: absolute; right: -10px; bottom: 0; width: 180px; height: 300px; }
@media (max-width: 767px) { .cta-lighthouse { width: 110px; height: 180px; opacity: .7; } }

.footer { background: #4A4A4A; color: #fff; padding: 44px 0 24px; }
.footer-inner { display: grid; gap: 24px; }
.footer-logo { display: inline-flex; background: #fff; border-radius: 12px; padding: 8px 14px; }
.footer-logo img { height: 40px; width: auto; }
.footer-company { margin-top: 14px; font-weight: 600; max-width: 420px; }
.footer-contact { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer-contact a { color: #fff; font-weight: 600; }
.footer-contact .todo { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .45); color: #FFE27A; }
.footer-copy { margin-top: 30px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .18); font-size: 14px; color: rgba(255, 255, 255, .8); }
@media (min-width: 768px) { .footer-inner { grid-template-columns: 1.4fr 1fr; align-items: start; } }

/* ===== Nút nổi ===== */
body { padding-bottom: 76px; }
@media (min-width: 768px) { body { padding-bottom: 0; } }
.zalo-float { position: fixed; right: 14px; bottom: 14px; z-index: 60; display: flex; align-items: center; gap: 10px; min-height: 52px; padding: 6px 18px 6px 6px; border-radius: 999px; background: #0068FF; color: #fff; text-decoration: none; font-weight: 700; font-size: 15px; box-shadow: 0 10px 26px rgba(0, 104, 255, .4); transition: transform .2s; }
.zalo-float:hover { transform: translateY(-3px); }
.zalo-mark { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: #fff; color: #0068FF; font-size: 11.5px; font-weight: 800; letter-spacing: -.02em; }
.zalo-float::before { content: ""; position: absolute; inset: 0; border-radius: inherit; box-shadow: 0 0 0 0 rgba(0, 104, 255, .5); animation: pulse 2.4s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(0, 104, 255, .45); } 70% { box-shadow: 0 0 0 14px rgba(0, 104, 255, 0); } 100% { box-shadow: 0 0 0 0 rgba(0, 104, 255, 0); } }
.to-top { position: fixed; right: 18px; bottom: 80px; z-index: 59; width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--line); background: #fff; color: var(--ink-strong); box-shadow: var(--shadow); cursor: pointer; display: grid; place-items: center; }
.to-top[hidden] { display: none; }
.to-top svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
@media (min-width: 768px) { .zalo-float { right: 24px; bottom: 24px; } .to-top { right: 28px; bottom: 92px; } }

/* ===== Lightbox ===== */
.lightbox { position: fixed; inset: 0; z-index: 90; background: rgba(15, 25, 40, .92); display: flex; align-items: center; justify-content: center; padding: 56px 12px; }
.lightbox[hidden] { display: none; }
.lightbox figure { margin: 0; max-width: 1100px; width: 100%; text-align: center; }
.lightbox img { max-height: 78vh; width: auto; max-width: 100%; margin: 0 auto; border-radius: 10px; }
.lightbox figcaption { color: rgba(255, 255, 255, .85); margin-top: 12px; font-size: 14.5px; }
.lb-btn { position: absolute; width: 48px; height: 48px; border-radius: 50%; border: 0; background: rgba(255, 255, 255, .14); color: #fff; font-size: 32px; line-height: 1; cursor: pointer; display: grid; place-items: center; }
.lb-btn:hover { background: rgba(255, 255, 255, .26); }
.lb-close { top: 12px; right: 12px; }
.lb-prev { left: 10px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 10px; top: 50%; transform: translateY(-50%); }
@media (max-width: 767px) { .lb-prev, .lb-next { top: auto; bottom: 10px; transform: none; } .lb-prev { left: calc(50% - 58px); } .lb-next { right: calc(50% - 58px); } }