/* =====================================================================
   Accounting Career Academy — main stylesheet
   Brand colour: #ADD8E6 (light blue). Change colours in :root below.
   ===================================================================== */

/* Self-hosted font (Bengali + Latin) — loads only the parts a page uses */
@font-face { font-family: "Hind Siliguri"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("/assets/fonts/hind-siliguri-bengali-400-normal.woff2") format("woff2");
  unicode-range: U+0951-0952, U+0964-0965, U+0980-09FE, U+1CD0, U+1CD2, U+1CD5-1CD6, U+1CD8, U+1CE1, U+1CEA, U+1CED, U+1CF2, U+1CF5-1CF7, U+200C-200D, U+20B9, U+25CC, U+A8F1; }
@font-face { font-family: "Hind Siliguri"; font-style: normal; font-weight: 600; font-display: swap;
  src: url("/assets/fonts/hind-siliguri-bengali-600-normal.woff2") format("woff2");
  unicode-range: U+0951-0952, U+0964-0965, U+0980-09FE, U+1CD0, U+1CD2, U+1CD5-1CD6, U+1CD8, U+1CE1, U+1CEA, U+1CED, U+1CF2, U+1CF5-1CF7, U+200C-200D, U+20B9, U+25CC, U+A8F1; }
@font-face { font-family: "Hind Siliguri"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("/assets/fonts/hind-siliguri-latin-400-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Hind Siliguri"; font-style: normal; font-weight: 600; font-display: swap;
  src: url("/assets/fonts/hind-siliguri-latin-600-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }

:root {
  --brand: #ADD8E6;
  --brand-50: #F3FAFD;
  --brand-100: #E4F3F9;
  --brand-200: #CBE7F1;
  --brand-700: #2A7896;
  --navy: #12355B;
  --navy-800: #0F2A48;
  --ink: #0F2438;
  --text: #22364A;
  --muted: #52657A;
  --line: #DCE8EF;
  --soft: #F6FAFC;
  --white: #FFFFFF;
  --accent: #B8521A;
  --accent-dark: #9A4413;
  --success: #1E7A4F;
  --success-bg: #E7F5EE;
  --danger: #B42318;
  --danger-bg: #FDECEA;
  --warning: #8A5A00;
  --warning-bg: #FFF6E0;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow: 0 1px 2px rgba(15, 36, 56, .06), 0 4px 14px rgba(15, 36, 56, .06);
  --font: "Hind Siliguri", "Nirmala UI", "Noto Sans Bengali", "Kohinoor Bangla", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --wrap: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); font-size: 17px; line-height: 1.65; color: var(--text); background: var(--white); text-rendering: optimizeLegibility; }
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: var(--brand-700); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { color: var(--ink); font-weight: 600; line-height: 1.3; margin: 0 0 .5em; }
h1 { font-size: 2.35rem; }
h2 { font-size: 1.85rem; }
h3 { font-size: 1.22rem; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.3em; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--brand-700); outline-offset: 2px; }
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--navy); color: #fff; padding: 8px 14px; z-index: 100; }
.skip-link:focus { left: 8px; top: 8px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
[hidden] { display: none !important; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.section { padding: 72px 0; }
.section-soft { background: var(--soft); }
.section-brand { background: var(--brand-50); }
.section-head { max-width: 720px; margin: 0 auto 40px; text-align: center; }
.section-head p { color: var(--muted); margin: 0; }
.section-head-row { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 28px; }
.section-head-row h2 { margin: 0; }
.eyebrow { display: inline-block; font-size: .78rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--brand-700); margin-bottom: 10px; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
.center { text-align: center; }
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; } .mt-4 { margin-top: 40px; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 10px 22px; border-radius: 8px; border: 1.5px solid transparent; font-weight: 600; font-size: .98rem; line-height: 1.2; cursor: pointer; text-decoration: none !important; transition: background-color .15s, border-color .15s, color .15s; white-space: nowrap; }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .6; cursor: not-allowed; }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-800); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); }
.btn-outline { background: #fff; color: var(--navy); border-color: var(--navy); }
.btn-outline:hover { background: var(--brand-50); }
.btn-light { background: var(--brand-100); color: var(--navy); }
.btn-light:hover { background: var(--brand-200); }
.btn-ghost { background: transparent; color: var(--navy); border-color: var(--line); }
.btn-ghost:hover { background: var(--soft); }
.btn-whatsapp { background: #1E8E4E; color: #fff; }
.btn-whatsapp:hover { background: #17753F; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { min-height: 36px; padding: 6px 14px; font-size: .9rem; }
.btn-block { width: 100%; }
.btn .ico { width: 18px; height: 18px; flex: none; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- Icons (inline SVG sprite) ---------- */
.ico { display: inline-block; vertical-align: -0.2em; width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }

/* ---------- Announcement + header ---------- */
.announce { background: var(--navy); color: #fff; font-size: .9rem; text-align: center; padding: 8px 16px; }
.announce a { color: var(--brand); font-weight: 600; }
.site-header { background: #fff; border-bottom: 1px solid var(--line); position: relative; z-index: 20; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 76px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none !important; min-width: 0; }
.brand img { width: 46px; height: 46px; flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; font-family: Arial, Helvetica, sans-serif; }
.brand-text b { font-size: 1.02rem; letter-spacing: .02em; color: var(--ink); white-space: nowrap; }
.brand-text span { font-size: .72rem; font-weight: 700; letter-spacing: .38em; color: var(--brand-700); margin-top: 4px; }
.brand.custom-logo img { width: auto; height: 48px; max-width: 240px; }
.main-nav ul { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.main-nav a { display: block; padding: 8px 11px; font-size: .84rem; font-weight: 600; letter-spacing: .06em; color: var(--ink); text-transform: uppercase; border-radius: 6px; text-decoration: none; white-space: nowrap; }
.main-nav a:hover { background: var(--brand-50); }
.main-nav a[aria-current="page"] { color: var(--brand-700); box-shadow: inset 0 -2px 0 var(--brand); border-radius: 0; }
.main-nav .nav-login { background: var(--navy); color: #fff; padding: 9px 16px; margin-left: 6px; border-radius: 8px; box-shadow: none; }
.main-nav .nav-login:hover { background: var(--navy-800); }
.main-nav .nav-login[aria-current="page"] { color: #fff; }
.nav-toggle { display: none; width: 46px; height: 46px; border: 1px solid var(--line); background: #fff; border-radius: 8px; align-items: center; justify-content: center; cursor: pointer; color: var(--ink); }

/* ---------- Hero ---------- */
.hero { background-color: var(--brand-50); background-image: linear-gradient(var(--brand-100) 1px, transparent 1px), linear-gradient(90deg, var(--brand-100) 1px, transparent 1px); background-size: 36px 36px; border-bottom: 1px solid var(--line); }
.hero-inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; padding-top: 64px; padding-bottom: 72px; }
.hero h1 { font-size: 2.75rem; margin-bottom: 18px; }
.hero-lead { font-size: 1.12rem; color: var(--muted); max-width: 580px; margin-bottom: 28px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 22px; list-style: none; padding: 0; margin: 28px 0 0; color: var(--ink); font-size: .95rem; }
.hero-points li { display: flex; align-items: center; gap: 8px; }
.hero-points .ico { color: var(--success); width: 18px; height: 18px; }

/* ---------- Cards ---------- */
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.card-pad { padding: 24px; }
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.badge { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 99px; font-size: .74rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; line-height: 1.6; background: var(--brand-100); color: var(--navy); }
.badge-live { background: #FCEBDD; color: var(--accent-dark); }
.badge-live::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-muted { background: #EEF2F5; color: var(--muted); }

.price { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.price b { font-size: 1.45rem; color: var(--ink); font-weight: 600; }
.price s { color: var(--muted); font-size: .95rem; }
.price .free { color: var(--success); }

.meta { display: flex; flex-wrap: wrap; gap: 6px 16px; color: var(--muted); font-size: .9rem; list-style: none; padding: 0; margin: 0; }
.meta li { display: flex; align-items: center; gap: 6px; }
.meta .ico { width: 16px; height: 16px; }

.course-card { display: flex; flex-direction: column; overflow: hidden; }
.course-card .thumb { aspect-ratio: 16 / 9; background: var(--brand-100); overflow: hidden; }
.course-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.course-card .body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.course-card h3 { margin: 0; font-size: 1.15rem; }
.course-card h3 a { color: var(--ink); }
.course-card p { color: var(--muted); font-size: .95rem; margin: 0; }
.course-card .foot { margin-top: auto; padding-top: 10px; display: flex; flex-direction: column; gap: 12px; }
.card-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.featured-card { overflow: hidden; border-top: 4px solid var(--brand); }
.featured-card .thumb { aspect-ratio: 16 / 9; background: var(--brand-100); }
.featured-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.featured-card .body { padding: 22px 24px 24px; }
.featured-card h2 { font-size: 1.35rem; margin: 10px 0 8px; }
.check-list { list-style: none; padding: 0; margin: 0 0 18px; display: grid; gap: 7px; }
.check-list li { display: flex; gap: 10px; align-items: flex-start; font-size: .95rem; }
.check-list .ico { color: var(--success); width: 18px; height: 18px; margin-top: 3px; }
.check-list.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 24px; }

/* ---------- Stats ---------- */
.stats { background: var(--navy); color: #fff; }
.stats .grid { padding-top: 44px; padding-bottom: 44px; }
.stat { text-align: center; }
.stat b { display: block; font-size: 2.4rem; line-height: 1.1; color: var(--brand); font-weight: 600; }
.stat span { color: #D6E7F0; font-size: .98rem; }

/* ---------- Features ---------- */
.feature-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 24px; }
.feature-grid > * { flex: 0 1 calc((100% - 72px) / 4); min-width: 0; }
.feature { padding: 26px 24px; }
.feature .ico-wrap { width: 48px; height: 48px; border-radius: 12px; background: var(--brand-100); color: var(--navy); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.feature .ico-wrap .ico { width: 24px; height: 24px; }
.feature h3 { margin-bottom: 6px; font-size: 1.1rem; }
.feature p { margin: 0; color: var(--muted); font-size: .95rem; }

/* ---------- Video (lazy YouTube) ---------- */
.video-block { display: grid; grid-template-columns: 1.4fr .6fr; gap: 36px; align-items: center; }
.video-lite { position: relative; display: block; width: 100%; aspect-ratio: 16 / 9; background: var(--navy) center / cover no-repeat; border: 0; border-radius: var(--radius-lg); overflow: hidden; cursor: pointer; padding: 0; }
.video-lite img { width: 100%; height: 100%; object-fit: cover; }
.video-lite .play { position: absolute; inset: 0; margin: auto; width: 76px; height: 54px; border-radius: 14px; background: rgba(15, 36, 56, .85); display: flex; align-items: center; justify-content: center; transition: background .15s; }
.video-lite:hover .play { background: #C4302B; }
.video-lite .play::before { content: ""; border-style: solid; border-width: 12px 0 12px 20px; border-color: transparent transparent transparent #fff; margin-left: 4px; }
.video-frame { width: 100%; aspect-ratio: 16 / 9; border: 0; border-radius: var(--radius-lg); display: block; background: #000; }
.video-side h2 { font-size: 1.6rem; }
.yt-channel { display: flex; align-items: center; gap: 12px; padding: 16px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); margin-top: 18px; }
.yt-channel .yt-ico { width: 44px; height: 44px; border-radius: 10px; background: #C4302B; color: #fff; display: flex; align-items: center; justify-content: center; flex: none; }

/* ---------- E-books ---------- */
.ebook-row { display: grid; grid-auto-flow: column; grid-auto-columns: calc((100% - 48px) / 3); gap: 24px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; scrollbar-width: thin; }
.ebook-row > * { scroll-snap-align: start; }
.ebook-card { display: grid; grid-template-columns: 124px 1fr; gap: 18px; padding: 18px; }
.ebook-card .cover { aspect-ratio: 3 / 4; border-radius: 6px; overflow: hidden; background: var(--brand-100); box-shadow: 0 4px 12px rgba(15, 36, 56, .18); }
.ebook-card .cover img { width: 100%; height: 100%; object-fit: cover; }
.ebook-card .body { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.ebook-card h3 { font-size: 1.05rem; margin: 0; }
.ebook-card h3 a { color: var(--ink); }
.ebook-card p { font-size: .92rem; color: var(--muted); margin: 0; }
.ebook-card .price b { font-size: 1.2rem; }
.ebook-card .btn-row { gap: 8px; margin-top: auto; }

/* ---------- Testimonials ---------- */
.testimonial { padding: 26px 24px; display: flex; flex-direction: column; gap: 14px; }
.testimonial blockquote { margin: 0; color: var(--text); font-size: .98rem; }
.testimonial .who { display: flex; align-items: center; gap: 12px; margin-top: auto; }
.testimonial .avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--brand); color: var(--navy); display: flex; align-items: center; justify-content: center; font-weight: 600; flex: none; overflow: hidden; }
.testimonial .avatar img { width: 100%; height: 100%; object-fit: cover; }
.testimonial .who b { display: block; color: var(--ink); line-height: 1.3; }
.testimonial .who span { color: var(--muted); font-size: .88rem; }
.stars { color: #D99A00; letter-spacing: 2px; font-size: .95rem; }

/* ---------- Blog ---------- */
.post-card { overflow: hidden; display: flex; flex-direction: column; }
.post-card .thumb { aspect-ratio: 16 / 9; background: var(--brand-100); }
.post-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.post-card .body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.post-card h3 { margin: 0; font-size: 1.12rem; }
.post-card h3 a { color: var(--ink); }
.post-card p { margin: 0; color: var(--muted); font-size: .94rem; }
.post-card .read { margin-top: auto; font-weight: 600; font-size: .94rem; }
.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.chip { border: 1px solid var(--line); background: #fff; border-radius: 99px; padding: 6px 14px; font-size: .9rem; cursor: pointer; color: var(--text); }
.chip[aria-pressed="true"] { background: var(--navy); color: #fff; border-color: var(--navy); }

.prose { font-size: 1.05rem; max-width: 760px; }
.prose h2 { font-size: 1.45rem; margin-top: 1.6em; }
.prose h3 { font-size: 1.2rem; margin-top: 1.4em; }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li { margin-bottom: .35em; }
.prose strong { color: var(--ink); }
.prose blockquote { margin: 1.2em 0; padding: 12px 18px; border-left: 4px solid var(--brand); background: var(--brand-50); }

.ebook-hero { display: grid; grid-template-columns: minmax(0, 220px) 1fr; gap: 28px; align-items: start; }
.ebook-hero-cover { overflow: hidden; aspect-ratio: 3 / 4; }
.ebook-hero-cover img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- Page header ---------- */
.page-head { background: var(--brand-50); border-bottom: 1px solid var(--line); padding: 44px 0 40px; }
.page-head h1 { margin-bottom: 8px; font-size: 2.1rem; }
.page-head p { color: var(--muted); margin: 0; max-width: 720px; }
.crumbs { font-size: .88rem; color: var(--muted); margin-bottom: 10px; }
.crumbs a { color: var(--muted); }

/* ---------- Course details ---------- */
.detail-grid { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 40px; align-items: start; }
.detail-main > section { margin-bottom: 44px; }
.detail-main h2 { font-size: 1.45rem; }
.sticky-box { position: sticky; top: 20px; }
.buy-box { overflow: hidden; }
.buy-box .thumb img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.buy-box .body { padding: 22px; display: grid; gap: 14px; }
.info-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; }
.info-list li { display: flex; justify-content: space-between; gap: 12px; padding: 9px 0; border-bottom: 1px dashed var(--line); font-size: .94rem; }
.info-list li:last-child { border-bottom: 0; }
.info-list span { color: var(--muted); }
.info-list b { color: var(--ink); font-weight: 600; text-align: right; }

.accordion { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.accordion details + details { border-top: 1px solid var(--line); }
.accordion summary { list-style: none; cursor: pointer; padding: 16px 18px; display: flex; justify-content: space-between; align-items: center; gap: 12px; font-weight: 600; color: var(--ink); background: var(--soft); }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after { content: ""; width: 10px; height: 10px; border-right: 2px solid var(--navy); border-bottom: 2px solid var(--navy); transform: rotate(45deg); transition: transform .15s; flex: none; margin-top: -4px; }
.accordion details[open] > summary::after { transform: rotate(-135deg); margin-top: 4px; }
.accordion summary small { font-weight: 400; color: var(--muted); margin-left: auto; margin-right: 8px; white-space: nowrap; }
.accordion .acc-body { padding: 6px 18px 14px; }
.lesson-list { list-style: none; margin: 0; padding: 0; }
.lesson-list li { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px dashed var(--line); font-size: .95rem; }
.lesson-list li:last-child { border-bottom: 0; }
.lesson-list .ico { width: 17px; height: 17px; color: var(--muted); }
.lesson-list .dur { margin-left: auto; color: var(--muted); font-size: .85rem; white-space: nowrap; }
.link-btn { border: 0; background: none; padding: 0; color: var(--brand-700); font-weight: 600; cursor: pointer; font-size: .88rem; }
.link-btn:hover { text-decoration: underline; }

.schedule { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.schedule div { background: var(--brand-50); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.schedule span { display: block; font-size: .82rem; color: var(--muted); }
.schedule b { color: var(--ink); font-weight: 600; }

/* ---------- Forms ---------- */
.form { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; }
.field label, .label { font-weight: 600; color: var(--ink); font-size: .95rem; }
.field .hint { font-size: .84rem; color: var(--muted); }
.input, .select, .textarea { width: 100%; min-height: 48px; padding: 10px 14px; border: 1.5px solid #C9D8E2; border-radius: 8px; background: #fff; font-size: 1rem; }
.textarea { min-height: 120px; resize: vertical; line-height: 1.55; }
.input:focus, .select:focus, .textarea:focus { border-color: var(--brand-700); outline: none; box-shadow: 0 0 0 3px var(--brand-100); }
.input[aria-invalid="true"] { border-color: var(--danger); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.choice-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.choice { position: relative; display: flex; align-items: center; gap: 12px; padding: 14px 16px; border: 1.5px solid #C9D8E2; border-radius: 10px; cursor: pointer; background: #fff; }
.choice input { width: 20px; height: 20px; accent-color: var(--navy); }
.choice:has(input:checked) { border-color: var(--navy); background: var(--brand-50); }
.choice b { display: block; color: var(--ink); }
.choice small { color: var(--muted); }
.check { display: flex; gap: 10px; align-items: center; cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--navy); }

.alert { padding: 12px 16px; border-radius: 8px; font-size: .95rem; border: 1px solid transparent; }
.alert-error { background: var(--danger-bg); color: var(--danger); border-color: #F6C9C4; }
.alert-success { background: var(--success-bg); color: var(--success); border-color: #BFE3CF; }
.alert-info { background: var(--brand-50); color: var(--navy); border-color: var(--brand-200); }
.alert-warning { background: var(--warning-bg); color: var(--warning); border-color: #F3DDA6; }

/* ---------- Checkout ---------- */
.checkout-grid { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 32px; align-items: start; }
.steps { list-style: none; counter-reset: step; padding: 0; margin: 0; display: grid; gap: 20px; }
.step { counter-increment: step; position: relative; padding: 24px 24px 24px 72px; }
.step::before { content: counter(step); position: absolute; left: 22px; top: 22px; width: 34px; height: 34px; border-radius: 50%; background: var(--navy); color: #fff; font-weight: 600; display: flex; align-items: center; justify-content: center; }
.step h2 { font-size: 1.2rem; margin-bottom: 12px; }
.pay-methods { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pay-card { border: 1.5px solid var(--line); border-radius: 12px; padding: 16px; background: #fff; }
.pay-card .pm-name { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--ink); margin-bottom: 8px; }
.pm-dot { width: 12px; height: 12px; border-radius: 50%; }
.pm-bkash { background: #D12053; } .pm-nagad { background: #EC1C24; }
.pay-number { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: 1.25rem; font-weight: 600; color: var(--ink); letter-spacing: .03em; }
.copy-btn { border: 1px solid var(--line); background: var(--soft); border-radius: 6px; padding: 4px 10px; font-size: .82rem; cursor: pointer; color: var(--navy); font-weight: 600; }
.summary-line { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--line); }
.summary-line:last-child { border-bottom: 0; font-weight: 600; color: var(--ink); font-size: 1.1rem; }
.success-box { text-align: center; padding: 36px 28px; }
.success-icon { width: 64px; height: 64px; border-radius: 50%; background: var(--success-bg); color: var(--success); display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.success-icon .ico { width: 32px; height: 32px; }

/* ---------- About ---------- */
.trainer { display: grid; grid-template-columns: 320px 1fr; gap: 44px; align-items: start; }
.trainer-photo { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); aspect-ratio: 1; background: var(--brand-100); }
.trainer-photo img { width: 100%; height: 100%; object-fit: cover; }
.fact-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 24px; }
.fact { padding: 18px 20px; }
.fact h3 { font-size: 1rem; margin-bottom: 6px; display: flex; gap: 8px; align-items: center; }
.fact h3 .ico { color: var(--brand-700); }
.fact ul { margin: 0; padding-left: 1.1em; color: var(--text); font-size: .95rem; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 32px; align-items: start; }
.contact-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.contact-list li a, .contact-list li > div { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; color: var(--ink); }
.contact-list li a:hover { background: var(--brand-50); text-decoration: none; }
.contact-list .ci { width: 42px; height: 42px; border-radius: 10px; background: var(--brand-100); color: var(--navy); display: flex; align-items: center; justify-content: center; flex: none; }
.contact-list small { display: block; color: var(--muted); font-size: .82rem; }
.contact-list b { font-weight: 600; word-break: break-word; }

/* ---------- Auth / login ---------- */
.auth-wrap { min-height: calc(100vh - 260px); display: flex; align-items: center; justify-content: center; padding: 56px 16px; background: var(--brand-50); }
.auth-card { width: 100%; max-width: 440px; padding: 32px 30px; }
.auth-card h1 { font-size: 1.6rem; margin-bottom: 6px; }
.code-input { text-transform: uppercase; letter-spacing: .12em; font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; }

/* ---------- Dashboard ---------- */
.dash-head { background: var(--brand-50); border-bottom: 1px solid var(--line); padding: 32px 0; }
.dash-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.dash-head h1 { font-size: 1.7rem; margin: 0; }
.dash-tabs { display: flex; gap: 6px; overflow-x: auto; border-bottom: 1px solid var(--line); margin-bottom: 28px; scrollbar-width: none; }
.dash-tabs a { padding: 12px 16px; font-weight: 600; color: var(--muted); white-space: nowrap; border-bottom: 2px solid transparent; text-decoration: none; }
.dash-tabs a:hover { color: var(--ink); }
.dash-section { margin-bottom: 48px; scroll-margin-top: 16px; }
.dash-section > h2 { font-size: 1.3rem; display: flex; align-items: center; gap: 10px; }
.progress { height: 8px; border-radius: 99px; background: var(--brand-100); overflow: hidden; }
.progress i { display: block; height: 100%; background: var(--brand-700); border-radius: 99px; }
.list-card { display: flex; align-items: center; gap: 16px; padding: 16px 18px; }
.list-card + .list-card { margin-top: 12px; }
.list-card .lc-img { width: 56px; aspect-ratio: 3 / 4; border-radius: 4px; overflow: hidden; flex: none; background: var(--brand-100); }
.list-card .lc-img img { width: 100%; height: 100%; object-fit: cover; }
.list-card .lc-body { flex: 1; min-width: 0; }
.list-card h3 { font-size: 1.02rem; margin: 0 0 2px; }
.live-card { padding: 18px 20px; display: grid; gap: 8px; }
.live-card + .live-card { margin-top: 12px; }
.live-card .when { display: flex; flex-wrap: wrap; gap: 6px 18px; color: var(--ink); font-weight: 600; }
.kv { display: grid; grid-template-columns: 140px 1fr; gap: 8px 16px; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; color: var(--ink); font-weight: 600; word-break: break-word; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.table { width: 100%; border-collapse: collapse; font-size: .93rem; }
.table th, .table td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: middle; }
.table th { background: var(--soft); font-weight: 600; color: var(--ink); font-size: .84rem; text-transform: uppercase; letter-spacing: .04em; white-space: nowrap; }
.table tr:last-child td { border-bottom: 0; }

/* ---------- Course player ---------- */
.player-grid { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 28px; align-items: start; padding: 24px 0 56px; }
.player-video { width: 100%; aspect-ratio: 16 / 9; background: #0B1B2B; border-radius: var(--radius-lg); overflow: hidden; display: flex; align-items: center; justify-content: center; color: #D6E7F0; text-align: center; padding: 0; }
.player-video iframe, .player-video video { width: 100%; height: 100%; border: 0; display: block; }
.player-video .pv-msg { padding: 24px; }
.lesson-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin: 20px 0 10px; flex-wrap: wrap; }
.lesson-head h1 { font-size: 1.5rem; margin: 0; }
.lesson-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--line); }
.outline { max-height: calc(100vh - 40px); overflow: auto; position: sticky; top: 20px; }
.outline .acc-body { padding: 0; }
.outline-lesson { display: flex; align-items: center; gap: 10px; padding: 11px 16px; color: var(--text); font-size: .93rem; border-top: 1px solid var(--line); text-decoration: none !important; }
.outline-lesson:hover { background: var(--brand-50); }
.outline-lesson[aria-current="true"] { background: var(--brand-100); color: var(--ink); font-weight: 600; }
.outline-lesson .st { width: 20px; height: 20px; border-radius: 50%; border: 2px solid #B8CAD6; flex: none; display: flex; align-items: center; justify-content: center; }
.outline-lesson .st.done { background: var(--success); border-color: var(--success); color: #fff; }
.outline-lesson .st.done .ico { width: 12px; height: 12px; stroke-width: 3; }
.outline-lesson .st.locked { border-color: var(--line); color: var(--muted); }
.outline-lesson .dur { margin-left: auto; color: var(--muted); font-size: .8rem; }
.outline-head { padding: 16px; border-bottom: 1px solid var(--line); }
.outline-head h2 { font-size: 1.05rem; margin: 0 0 8px; }

/* ---------- Misc ---------- */
.empty { text-align: center; padding: 40px 20px; color: var(--muted); border: 1.5px dashed var(--line); border-radius: var(--radius-lg); background: #fff; }
.empty .ico { width: 40px; height: 40px; margin: 0 auto 10px; color: var(--brand-700); }
.skeleton { background: linear-gradient(90deg, #EEF4F8 25%, #F6FAFC 50%, #EEF4F8 75%); background-size: 200% 100%; animation: sk 1.4s linear infinite; border-radius: var(--radius-lg); min-height: 280px; }
@keyframes sk { to { background-position: -200% 0; } }
.cta-band { background: var(--navy); color: #fff; border-radius: 18px; padding: 44px 40px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; margin: 0 0 6px; }
.cta-band p { margin: 0; color: #D6E7F0; }
.cta-band .btn-outline { background: transparent; color: #fff; border-color: #fff; }
.cta-band .btn-outline:hover { background: rgba(255, 255, 255, .1); }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--ink); color: #fff; padding: 12px 20px; border-radius: 10px; z-index: 200; font-size: .95rem; box-shadow: var(--shadow); max-width: calc(100% - 32px); }
.toast.error { background: var(--danger); }
.modal { border: 0; border-radius: var(--radius-lg); padding: 0; width: min(880px, calc(100% - 24px)); background: #000; }
.modal::backdrop { background: rgba(8, 20, 32, .72); }
.modal-close { position: absolute; top: 8px; right: 8px; z-index: 2; width: 38px; height: 38px; border-radius: 50%; border: 0; background: rgba(255, 255, 255, .92); color: var(--ink); font-size: 22px; line-height: 1; cursor: pointer; }
.wa-float { position: fixed; right: 18px; bottom: 18px; width: 56px; height: 56px; border-radius: 50%; background: #1E8E4E; color: #fff; display: flex; align-items: center; justify-content: center; box-shadow: 0 6px 18px rgba(0, 0, 0, .2); z-index: 50; }
.wa-float:hover { background: #17753F; }
.wa-float .ico { width: 28px; height: 28px; }
.demo-note { background: var(--warning-bg); color: var(--warning); font-size: .85rem; text-align: center; padding: 6px 12px; border-bottom: 1px solid #F3DDA6; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #C5D4E0; padding: 56px 0 0; font-size: .95rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.1fr; gap: 36px; }
.site-footer h2 { color: #fff; font-size: 1rem; letter-spacing: .06em; text-transform: uppercase; margin-bottom: 14px; }
.site-footer a { color: #C5D4E0; }
.site-footer a:hover { color: #fff; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer-brand img { height: 52px; width: auto; margin-bottom: 14px; }
.footer-brand p { color: #A9BCCB; margin: 0; }
.social { display: flex; gap: 10px; margin-top: 16px; }
.social a { width: 40px; height: 40px; border-radius: 10px; background: rgba(255, 255, 255, .08); display: flex; align-items: center; justify-content: center; color: #fff; }
.social a:hover { background: rgba(255, 255, 255, .16); }
.footer-bottom { margin-top: 44px; border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 18px; padding-bottom: 18px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: .88rem; color: #93A8B8; }