:root {
    --bg: #fbfaf7;
    --surface: #ffffff;
    --surface-soft: #f2f0ea;
    --text: #18201b;
    --muted: #68716b;
    --line: #e2e0d8;
    --primary: #1e5b45;
    --primary-dark: #164735;
    --accent: #d9a441;
    --shadow: 0 18px 50px rgba(24,32,27,.08);
    --radius: 20px;
    --container: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin:0; font-family: "Noto Sans Bengali","Nirmala UI",system-ui,sans-serif; background:var(--bg); color:var(--text); line-height:1.7; }
a { color:inherit; text-decoration:none; }
.container { width:min(calc(100% - 40px), var(--container)); margin:auto; }
.site-header { position:sticky; top:0; z-index:20; background:rgba(251,250,247,.92); backdrop-filter:blur(12px); border-bottom:1px solid rgba(226,224,216,.8); }
.nav-wrap { min-height:76px; display:flex; align-items:center; justify-content:space-between; gap:24px; }
.brand { display:flex; align-items:center; gap:10px; font-size:1.3rem; font-weight:800; }
.brand-mark { width:38px; height:38px; display:grid; place-items:center; border-radius:12px; background:var(--primary); color:white; }
.brand-accent { color:var(--accent); }
.nav { display:flex; align-items:center; gap:24px; font-size:.94rem; font-weight:600; }
.nav a { color:#465149; }
.nav a:hover { color:var(--primary); }
.nav-cta { padding:10px 17px; background:var(--primary); color:#fff !important; border-radius:10px; }
.nav-toggle { display:none; border:0; background:none; font-size:1.5rem; }
.hero { padding:82px 0 76px; }
.hero-grid { display:grid; grid-template-columns:1.1fr .9fr; gap:70px; align-items:center; }
.eyebrow { display:inline-block; margin-bottom:10px; color:var(--primary); font-weight:800; font-size:.8rem; letter-spacing:.08em; text-transform:uppercase; }
.hero h1, .page-hero h1 { font-size:clamp(2.5rem,5vw,4.7rem); line-height:1.08; letter-spacing:-.045em; margin:8px 0 22px; }
.hero h1 span { color:var(--primary); }
.hero p { max-width:650px; color:var(--muted); font-size:1.08rem; }
.hero-actions { display:flex; gap:12px; margin:28px 0; flex-wrap:wrap; }
.btn { display:inline-flex; align-items:center; justify-content:center; min-height:48px; padding:0 20px; border-radius:12px; font-weight:800; border:1px solid transparent; cursor:pointer; }
.btn-primary { background:var(--primary); color:#fff; }
.btn-primary:hover { background:var(--primary-dark); }
.btn-secondary { background:transparent; border-color:var(--line); }
.hero-trust { display:flex; gap:18px; flex-wrap:wrap; color:#657069; font-size:.88rem; }
.hero-card { padding:22px; border:1px solid var(--line); background:var(--surface); border-radius:28px; box-shadow:var(--shadow); }
.portrait-placeholder, .image-placeholder { min-height:430px; border-radius:20px; background:linear-gradient(145deg,#dfe7e0,#f2ede1); display:grid; place-items:center; color:#607066; font-weight:800; font-size:1.5rem; }
.hero-card-info { padding:18px 4px 2px; display:grid; gap:4px; }
.hero-card-info span { color:var(--muted); font-size:.9rem; }
.section { padding:92px 0; }
.section-soft { background:var(--surface-soft); }
.section-heading { max-width:680px; margin-bottom:38px; }
.section-heading h2, .split h2 { font-size:clamp(2rem,3.5vw,3rem); line-height:1.15; margin:4px 0 14px; letter-spacing:-.03em; }
.section-heading p, .split p { color:var(--muted); }
.card-grid { display:grid; gap:20px; }
.card-grid.three { grid-template-columns:repeat(3,1fr); }
.subject-card, .course-card, .quote-card { background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:28px; }
.subject-icon { font-size:2rem; margin-bottom:20px; }
.subject-card h3, .course-card h3 { margin:0 0 8px; font-size:1.3rem; }
.subject-card p, .course-card p, .quote-card p { color:var(--muted); }
.subject-card a, .text-link { color:var(--primary); font-weight:800; }
.split { display:grid; grid-template-columns:1fr 1fr; gap:70px; align-items:center; }
.steps { display:grid; gap:12px; }
.step { display:grid; grid-template-columns:52px 1fr; gap:15px; padding:18px; border:1px solid var(--line); border-radius:16px; background:rgba(255,255,255,.7); }
.step>b { color:var(--primary); font-size:.9rem; }
.step h3, .step p { margin:0; }
.step p { font-size:.9rem; }
.cta { display:flex; justify-content:space-between; gap:30px; align-items:center; padding:42px; background:var(--primary); color:white; border-radius:28px; }
.cta .eyebrow { color:#d9e8df; }
.cta p { color:#d6e4dc; }
.page-hero { padding:90px 0 65px; background:var(--surface-soft); }
.page-hero h1 { max-width:850px; font-size:clamp(2.5rem,5vw,4rem); }
.page-hero p { max-width:680px; color:var(--muted); font-size:1.05rem; }
.course-label, .resource-type { color:var(--primary); font-weight:800; font-size:.78rem; text-transform:uppercase; letter-spacing:.08em; }
.quote-mark { font-size:3rem; line-height:1; color:var(--accent); }
.quote-card strong, .quote-card span { display:block; }
.quote-card span { color:var(--muted); font-size:.9rem; }
.resource-list { display:grid; gap:12px; }
.resource-list article { display:flex; justify-content:space-between; gap:20px; align-items:center; padding:24px 26px; border:1px solid var(--line); border-radius:16px; background:var(--surface); }
.resource-list h3 { margin:5px 0; }
.resource-list p { margin:0; color:var(--muted); }
.resource-arrow { font-size:1.4rem; color:var(--primary); }
.faq-list { max-width:820px; margin:auto; }
.faq-list details { border-bottom:1px solid var(--line); padding:18px 0; }
.faq-list summary { cursor:pointer; list-style:none; display:flex; justify-content:space-between; font-weight:800; }
.faq-list summary::-webkit-details-marker { display:none; }
.faq-list details p { color:var(--muted); }
.contact-grid { display:grid; grid-template-columns:.85fr 1.15fr; gap:60px; }
.contact-info h2 { font-size:2.2rem; }
.contact-item { display:grid; gap:2px; padding:15px 0; border-bottom:1px solid var(--line); }
.contact-item span { color:var(--muted); }
.contact-form { display:grid; gap:18px; padding:30px; border:1px solid var(--line); border-radius:22px; background:var(--surface); }
.contact-form label { display:grid; gap:7px; font-weight:700; }
.contact-form input, .contact-form textarea { width:100%; border:1px solid var(--line); border-radius:10px; padding:13px 14px; font:inherit; background:#fff; }
.stats { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:25px; }
.stats div { padding:18px; background:var(--surface-soft); border-radius:14px; }
.stats strong, .stats span { display:block; }
.stats span { color:var(--muted); font-size:.85rem; }
.site-footer { background:#14221b; color:#dce5df; padding-top:60px; }
.footer-grid { display:grid; grid-template-columns:1.5fr 1fr 1fr; gap:50px; padding-bottom:50px; }
.footer-brand { color:white; }
.footer-grid p, .footer-grid span, .footer-grid a { color:#aebcb4; }
.footer-grid h4 { margin-top:0; color:white; }
.footer-grid > div:not(:first-child) { display:grid; align-content:start; gap:8px; }
.footer-bottom { border-top:1px solid rgba(255,255,255,.1); padding:18px 0; color:#93a199; font-size:.85rem; }