/* ============ Venglish | English with Vinh ============ */
:root {
  --navy: #2a3d63;
  --navy-ink: #1e2d4c;
  --blue: #6399bf;
  --blue-soft: #e9f1f8;
  --blue-line: #cfe0ee;
  --green: #22894f;
  --green-strong: #1d7a46;
  --green-soft: #e5f4eb;
  --gold-soft: #fff5d6;
  --gold-line: #f1dc9a;
  --gold-ink: #7a5a00;
  --text: #1f2a3d;
  --muted: #5d6a7e;
  --line: #e3e8ef;
  --bg: #f6f8fb;
  --white: #fff;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(30, 45, 76, .06), 0 4px 14px rgba(30, 45, 76, .06);
  --font: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 76px; }
body {
  margin: 0;
  font-family: var(--font);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
strong, b, h1, h2, h3, h4, th { font-weight: 700; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--navy); }
button, input { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }

.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 800px; }
.site-main { flex: 1; outline: none; }
.section { padding-top: 24px; padding-bottom: 48px; }
.muted { color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

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

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 64px; gap: 16px; }
.brand img { height: 36px; width: auto; }
.menu-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border: 1px solid var(--line); border-radius: 12px;
  background: var(--white); cursor: pointer; font-size: 22px; color: var(--navy);
}
.site-nav {
  display: none;
  position: absolute; left: 0; right: 0; top: 100%;
  background: var(--white); border-bottom: 1px solid var(--line);
  padding: 8px 16px 16px; flex-direction: column; gap: 4px;
  box-shadow: 0 10px 20px rgba(30, 45, 76, .08);
}
.site-nav.is-open { display: flex; }
.site-nav a {
  display: flex; align-items: center; min-height: 48px; padding: 0 14px;
  border-radius: 10px; text-decoration: none; color: var(--text); font-weight: 700;
}
.site-nav a:hover { background: var(--blue-soft); }
.site-nav a.is-active { color: var(--navy); background: var(--blue-soft); }
.site-nav a.nav-vip { background: var(--gold-soft); color: var(--gold-ink); border: 1px solid var(--gold-line); }
.site-nav a.nav-vip.is-active, .site-nav a.nav-vip:hover { background: #ffeeb8; }

@media (min-width: 900px) {
  .menu-btn { display: none; }
  .site-nav {
    display: flex; position: static; flex-direction: row; padding: 0; gap: 4px;
    border: 0; box-shadow: none; background: transparent;
  }
  .site-nav a { min-height: 42px; padding: 0 14px; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 10px 20px;
  border-radius: 12px; border: 2px solid transparent;
  font-weight: 700; font-size: 16px; line-height: 1.2; text-align: center;
  text-decoration: none; cursor: pointer;
  transition: background-color .15s, border-color .15s, color .15s;
}
.btn svg { width: 20px; height: 20px; flex: none; }
.btn-lg { min-height: 56px; font-size: 17px; padding: 12px 24px; }
.btn-block { width: 100%; }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-ink); }
.btn-green { background: var(--green); color: #fff; }
.btn-green:hover { background: var(--green-strong); }
.btn-outline { background: var(--white); color: var(--navy); border-color: var(--navy); }
.btn-outline:hover { background: var(--blue-soft); }
.btn-soft { background: var(--blue-soft); color: var(--navy); }
.btn-soft:hover { background: var(--blue-line); }
.btn-gold { background: var(--gold-soft); color: var(--gold-ink); border-color: var(--gold-line); }
.btn-gold:hover { background: #ffeeb8; }
.btn-zalo { background: #0068ff; color: #fff; }
.btn-zalo:hover { background: #0057d6; }
.btn-fb { background: #1877f2; color: #fff; }
.btn-fb:hover { background: #0f63d1; }
.btn-sm { min-height: 40px; padding: 6px 14px; font-size: 15px; border-radius: 10px; }

/* ---------- Hero ---------- */
.hero { background: var(--white); border-bottom: 1px solid var(--line); padding: 32px 0 28px; }
.hero-title { margin: 0 0 12px; font-size: clamp(28px, 7vw, 46px); line-height: 1.35; letter-spacing: -.01em; }
.hl {
  display: inline; padding: .04em .32em; border-radius: 10px; color: #fff;
  -webkit-box-decoration-break: clone; box-decoration-break: clone;
}
.hl-navy { background: var(--navy); }
.hl-green { background: var(--green); }
.hero-sub { margin: 0 0 20px; color: var(--muted); font-size: 17px; max-width: 640px; }

.search {
  position: relative; max-width: 640px;
}
.search svg { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); width: 22px; height: 22px; color: var(--muted); pointer-events: none; }
.search input {
  width: 100%; min-height: 56px; padding: 12px 48px 12px 50px;
  border: 2px solid var(--blue-line); border-radius: 14px; background: var(--white);
  font-size: 17px; -webkit-appearance: none; appearance: none;
}
.search input::placeholder { color: #8a95a6; }
.search input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 4px rgba(99, 153, 191, .2); }
.search .search-clear {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer;
  font-size: 22px; color: var(--muted); border-radius: 10px;
}
.search input::-webkit-search-cancel-button { display: none; }

/* ---------- Page header ---------- */
.page-head { background: var(--white); border-bottom: 1px solid var(--line); padding: 28px 0 24px; }
.page-head h1 { margin: 0 0 6px; font-size: clamp(26px, 6vw, 36px); line-height: 1.3; color: var(--navy); }
.page-head p { margin: 0 0 16px; color: var(--muted); max-width: 680px; }
.page-head p:last-child { margin-bottom: 0; }
.page-head-vip { background: var(--gold-soft); border-bottom-color: var(--gold-line); }
.page-head-vip h1 { color: var(--gold-ink); }

/* ---------- Filters ---------- */
.filters, .subfilters {
  display: flex; gap: 8px; overflow-x: auto; padding: 2px 2px 6px; margin: 0 -16px; padding-left: 16px; padding-right: 16px;
  scrollbar-width: none;
}
.filters::-webkit-scrollbar, .subfilters::-webkit-scrollbar { display: none; }
.subfilters { margin-top: 6px; }
.chip {
  flex: none; min-height: 44px; padding: 8px 18px; border-radius: 999px;
  border: 2px solid var(--line); background: var(--white); color: var(--text);
  font-weight: 700; font-size: 15px; cursor: pointer; white-space: nowrap;
}
.chip:hover { border-color: var(--blue); }
.chip.is-active { background: var(--navy); border-color: var(--navy); color: #fff; }
.chip-sub { min-height: 40px; padding: 6px 16px; font-size: 14px; background: var(--blue-soft); border-color: var(--blue-soft); color: var(--navy); }
.chip-sub.is-active { background: var(--blue); border-color: var(--blue); color: #fff; }
@media (min-width: 900px) {
  .filters, .subfilters { flex-wrap: wrap; overflow: visible; margin: 0; padding-left: 2px; padding-right: 2px; }
}
.result-count { margin: 14px 0 12px; color: var(--muted); font-size: 15px; }

/* ---------- Grid & cards ---------- */
.grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 640px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1220px) { .grid-4 { grid-template-columns: repeat(4, 1fr); } }

.card {
  position: relative; display: flex; flex-direction: column;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
  transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--blue-line); }
.card-vip { border-color: var(--gold-line); }
.card-vip:hover { border-color: #e6c766; }
.card-body { display: flex; flex-direction: column; gap: 8px; padding: 16px; flex: 1; }
.card-title { margin: 0; font-size: 18px; line-height: 1.4; }
.card-title a { color: var(--text); text-decoration: none; }
.card-title a::after { content: ''; position: absolute; inset: 0; z-index: 1; } /* cả thẻ bấm được */
.card-title a:hover { color: var(--navy); }
.card-desc { margin: 0; color: var(--muted); font-size: 15px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.card-meta { margin-top: auto; padding-top: 4px; color: var(--muted); font-size: 14px; }
.card-actions { position: relative; z-index: 2; display: flex; gap: 8px; padding: 0 16px 16px; flex-wrap: wrap; }
.card-actions .btn { flex: 1 1 140px; }
.card-price { font-size: 20px; font-weight: 700; color: var(--gold-ink); }
.card-price { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 10px; }
.price-old { font-size: 15px; font-weight: 400; color: var(--muted); text-decoration: line-through; }
.price-box .price-old { font-size: 17px; }

.badges { display: flex; flex-wrap: wrap; gap: 6px; }
.badge {
  display: inline-flex; align-items: center; min-height: 26px; padding: 2px 10px;
  border-radius: 999px; font-size: 13px; font-weight: 700; line-height: 1.3;
  background: var(--blue-soft); color: var(--navy);
}
.badge-free { background: var(--green-soft); color: var(--green-strong); }
.badge-vip { background: var(--gold-soft); color: var(--gold-ink); border: 1px solid var(--gold-line); }
.badge-new { background: var(--green); color: #fff; }
.badge-sale { background: #c2410c; color: #fff; }
.badge-video { background: #fdecec; color: #b42318; }
.badge-line { background: transparent; border: 1px solid var(--line); color: var(--muted); }

/* ảnh bìa trên thẻ */
.cover { aspect-ratio: 4 / 3; background: var(--blue-soft); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.card-vip .cover { background: var(--gold-soft); }
.cover img { width: 100%; height: 100%; object-fit: contain; }

/* video thumbnail */
.thumb {
  position: relative; z-index: 2; display: block; width: 100%; aspect-ratio: 16 / 9;
  background: #0f1a2e center / cover no-repeat; border: 0; padding: 0; cursor: pointer;
}
.thumb img { width: 100%; height: 100%; object-fit: cover; }
.thumb .play {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 68px; height: 48px; border-radius: 14px; background: rgba(220, 38, 38, .92);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .3); transition: transform .15s;
}
.thumb:hover .play { transform: translate(-50%, -50%) scale(1.08); }
.thumb .play::before { content: ''; border-style: solid; border-width: 10px 0 10px 17px; border-color: transparent transparent transparent #fff; margin-left: 4px; }
.video-frame { position: relative; width: 100%; aspect-ratio: 16 / 9; background: #000; }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* skeleton */
.skeleton { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; display: grid; gap: 10px; }
.sk { height: 14px; border-radius: 6px; background: linear-gradient(90deg, #eef2f7 25%, #e2e8f0 50%, #eef2f7 75%); background-size: 200% 100%; animation: sk 1.2s infinite linear; }
.sk-title { height: 20px; width: 80%; }
.sk-short { width: 40%; }
.sk-btn { height: 44px; border-radius: 12px; margin-top: 6px; }
@keyframes sk { to { background-position: -200% 0; } }

/* empty / error */
.empty { text-align: center; padding: 40px 16px; background: var(--white); border: 1px dashed var(--line); border-radius: var(--radius); }
.empty p { margin: 0 0 16px; color: var(--muted); font-size: 17px; }
.empty .btn { margin: 4px; }

/* ---------- Detail ---------- */
.breadcrumb { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 14px; padding: 0; list-style: none; font-size: 14px; color: var(--muted); }
.breadcrumb li + li::before { content: '›'; margin-right: 6px; }
.breadcrumb a { color: var(--muted); }
.detail-title { margin: 10px 0 10px; font-size: clamp(26px, 6vw, 36px); line-height: 1.3; color: var(--navy); }
.lead { font-size: 18px; color: var(--text); margin: 0 0 18px; }
.detail-date { color: var(--muted); font-size: 14px; margin: 0 0 18px; }
.download-box { display: grid; gap: 10px; margin: 0 0 24px; }
@media (min-width: 560px) { .download-box { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); } }
.download-bottom { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line); }
.download-bottom h2 { font-size: 18px; margin: 0 0 12px; }
.block { margin: 0 0 24px; }
.block-title { font-size: 20px; margin: 0 0 12px; color: var(--navy); }
.preview { margin: 0 0 24px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px; }
.preview img { margin: 0 auto; max-height: 560px; width: auto; border-radius: 6px; }
.preview figcaption { text-align: center; font-size: 13px; color: var(--muted); margin-top: 6px; }
/* bản DEMO của tài liệu VIP */
.demo-frame { position: relative; height: min(75vh, 680px); margin: 0 0 12px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.demo-folder { height: 320px; }
.demo-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ảnh giới thiệu trong trang chi tiết */
.gallery { display: grid; gap: 12px; margin: 0 0 24px; }
.gallery a { display: block; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.gallery img { width: 100%; height: auto; }
.video-card { border-radius: var(--radius); overflow: hidden; margin: 0 0 24px; box-shadow: var(--shadow); }

/* Article (bài viết) */
.article {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 18px; margin: 0 0 24px; font-size: 17px; line-height: 1.75; overflow-wrap: anywhere;
}
@media (min-width: 640px) { .article { padding: 28px 32px; } }
.article-text { white-space: pre-line; }
.article > :first-child { margin-top: 0; }
.article > :last-child { margin-bottom: 0; }
.article p { margin: 0 0 .9em; }
.article h2 { font-size: 22px; line-height: 1.35; margin: 1.4em 0 .6em; color: var(--navy); }
.article h3 { font-size: 19px; line-height: 1.4; margin: 1.3em 0 .5em; color: var(--navy); }
.article h4 { font-size: 17px; margin: 1.2em 0 .4em; }
.article ul, .article ol { margin: 0 0 .9em; padding-left: 1.5em; }
.article li { margin: .2em 0; }
.article .lvl-1 { margin-left: 1.5em; } .article .lvl-2 { margin-left: 3em; } .article .lvl-3 { margin-left: 4.5em; }
.article img { border-radius: 8px; margin: .6em auto; }
.article hr { border: 0; border-top: 1px solid var(--line); margin: 1.5em 0; }
.article a { color: var(--navy); text-decoration: underline; text-underline-offset: 2px; }
.article .table-wrap { overflow-x: auto; margin: 0 0 1em; }
.article table { border-collapse: collapse; width: 100%; font-size: 16px; }
.article td, .article th { border: 1px solid var(--line); padding: 8px 10px; vertical-align: top; }
.article td p, .article th p { margin: 0; }
.article .doc-lead { font-size: 18px; color: var(--muted); }
.article-loading { color: var(--muted); }

/* VIP suggestion */
.vip-suggest { margin: 32px 0 0; background: var(--gold-soft); border: 1px solid var(--gold-line); border-radius: var(--radius); padding: 18px; }
.vip-suggest h2 { margin: 0 0 4px; font-size: 18px; color: var(--gold-ink); }
.vip-suggest > p { margin: 0 0 12px; color: var(--gold-ink); font-size: 15px; }
.vip-item {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--white); border: 1px solid var(--gold-line); border-radius: var(--radius-sm);
  padding: 14px 16px; text-decoration: none; color: var(--text); margin-top: 10px;
}
.vip-item:hover { border-color: #e6c766; }
.vip-item strong { display: block; font-size: 17px; }
.vip-item span { color: var(--muted); font-size: 14px; }
.vip-item .card-price { font-size: 18px; }

.related { margin-top: 36px; }
.related h2 { font-size: 20px; color: var(--navy); margin: 0 0 14px; }

/* ---------- VIP purchase ---------- */
.price-box {
  display: flex; align-items: baseline; flex-wrap: wrap; gap: 10px;
  background: var(--gold-soft); border: 1px solid var(--gold-line); border-radius: var(--radius);
  padding: 14px 18px; margin: 0 0 24px; color: var(--gold-ink);
}
.price-box strong { font-size: 28px; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.step { display: flex; gap: 14px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 16px; }
.step-num {
  flex: none; width: 36px; height: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--navy); color: #fff; font-weight: 700;
}
.step-content { flex: 1; min-width: 0; }
.step h2 { margin: 4px 0 12px; font-size: 19px; color: var(--navy); }
.step p { margin: 0 0 12px; color: var(--muted); }
.qr-layout { display: grid; gap: 16px; }
@media (min-width: 720px) { .qr-layout { grid-template-columns: 280px 1fr; align-items: start; } }
.qr-img { width: 100%; max-width: 300px; margin: 0 auto; border: 1px solid var(--line); border-radius: 12px; background: #fff; aspect-ratio: 540 / 640; object-fit: contain; }
.bank-list { margin: 0; display: grid; gap: 0; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.bank-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 14px; border-top: 1px solid var(--line); }
.bank-row:first-child { border-top: 0; }
.bank-row dt { color: var(--muted); font-size: 14px; }
.bank-row dd { margin: 0; font-weight: 700; text-align: right; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; word-break: break-word; }
.copy-btn { min-height: 34px; padding: 4px 12px; font-size: 13px; border-radius: 8px; border: 1px solid var(--blue-line); background: var(--blue-soft); color: var(--navy); font-weight: 700; cursor: pointer; }
.copy-btn.is-done { background: var(--green-soft); border-color: var(--green-soft); color: var(--green-strong); }
.field { display: grid; gap: 6px; margin: 0 0 16px; }
.field label { font-weight: 700; font-size: 15px; }
.field input {
  min-height: 52px; padding: 10px 14px; border: 2px solid var(--blue-line); border-radius: 12px; font-size: 17px; background: #fff;
}
.field input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 4px rgba(99, 153, 191, .2); }
.field small { color: var(--muted); font-size: 13px; }

/* ---------- Courses ---------- */
.course-card .card-body { gap: 10px; }
.course-info { margin: 0; display: grid; gap: 6px; font-size: 15px; }
.course-info div { display: flex; gap: 8px; }
.course-info dt { color: var(--muted); min-width: 92px; }
.course-info dd { margin: 0; font-weight: 700; }
.status-open { background: var(--green-soft); color: var(--green-strong); }
.status-soon { background: var(--blue-soft); color: var(--navy); }
.status-full { background: #eef0f3; color: #5d6a7e; }

/* ---------- Contact ---------- */
.contact-list { display: grid; gap: 12px; max-width: 520px; }
.contact-list .btn { justify-content: flex-start; padding-left: 20px; }
.contact-list .btn span small { display: block; font-weight: 400; font-size: 13px; opacity: .9; }
.contact-list .btn span { text-align: left; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy); color: #dfe7f3; margin-top: 24px; padding: 28px 0 20px; }
.footer-inner { display: flex; flex-direction: column; gap: 18px; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { width: 56px; height: 56px; border-radius: 50%; background: #fff; }
.footer-brand strong { display: block; color: #fff; font-size: 17px; }
.footer-brand span { font-size: 14px; color: #b8c7dc; }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px; }
.footer-links a {
  display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 14px;
  border-radius: 10px; background: rgba(255, 255, 255, .08); color: #fff; text-decoration: none; font-weight: 700; font-size: 15px;
}
.footer-links a:hover { background: rgba(255, 255, 255, .16); }
.footer-links svg { width: 18px; height: 18px; }
.footer-copy { margin-top: 18px; padding-top: 14px; border-top: 1px solid rgba(255, 255, 255, .12); font-size: 13px; color: #9fb1cb; }
@media (min-width: 768px) {
  .footer-inner { flex-direction: row; align-items: center; justify-content: space-between; }
}

.icon-zalo {
  display: inline-flex; align-items: center; justify-content: center; flex: none;
  width: 22px; height: 22px; border-radius: 6px; background: #fff; color: #0068ff;
  font-size: 9px; font-weight: 700; letter-spacing: -.02em;
}

/* ---------- Chọn gói (tài liệu VIP nhiều gói) ---------- */
.price-from { font-size: 14px; font-weight: 400; color: var(--muted); }
.price-note { font-size: 14px; color: var(--muted); }
.price-box .price-note { font-size: 15px; color: var(--gold-ink); }
.packs { display: grid; gap: 10px; }
.pack {
  display: grid; grid-template-columns: auto 1fr auto; grid-template-areas: "radio name price" "radio desc desc";
  align-items: center; column-gap: 12px; row-gap: 4px; cursor: pointer;
  padding: 14px; min-height: 60px; background: var(--white);
  border: 2px solid var(--line); border-radius: 12px;
  transition: border-color .15s, background-color .15s;
}
.pack:hover { border-color: var(--blue); }
.pack input { grid-area: radio; align-self: center; width: 22px; height: 22px; margin: 0; accent-color: var(--navy); }
.pack.is-selected { border-color: var(--navy); background: var(--blue-soft); }
.pack-name { grid-area: name; font-weight: 700; font-size: 16px; line-height: 1.35; }
.pack-name .badge { vertical-align: 2px; margin-left: 2px; }
.pack-desc { grid-area: desc; font-size: 14px; color: var(--muted); line-height: 1.45; }
.pack-price { grid-area: price; display: flex; flex-direction: column; align-items: flex-end; text-align: right; }
.pack-price strong { font-size: 17px; color: var(--gold-ink); white-space: nowrap; }
.pack-price .price-old { font-size: 13px; white-space: nowrap; }
.pay-wait { margin: 0; padding: 18px 16px; text-align: center; border: 2px dashed var(--line); border-radius: 12px; color: var(--muted); }
.zalo-msg { background: var(--blue-soft); border-radius: 12px; padding: 14px 16px; margin: 0 0 14px; }
.zalo-msg p { margin: 0 0 10px; color: var(--text); font-size: 15px; }
[hidden] { display: none !important; }

/* Điện thoại: số bước nằm cạnh tiêu đề để nội dung bước được rộng cả khung */
@media (max-width: 559px) {
  .step { display: block; padding: 16px 14px; }
  .step-num { float: left; width: 32px; height: 32px; margin-right: 10px; }
  .step h2 { line-height: 32px; margin: 0 0 12px; }
  .step-content > h2 ~ * { clear: both; }
}

.vip-more { margin-top: 32px; }