:root{--navy: #13213c;--navy-2: #1d2f52;--orange: #e8590c;--orange-2: #c94a06;--ink: #1b1f27;--ink-2: #4a5160;--muted: #6c7280;--line: #e5e3dc;--bg: #fbfaf7;--card: #ffffff;--green: #0f7b55;--red: #b42318;--radius: 14px}*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;font-family:Inter,Mukta,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55}img{max-width:100%;display:block}a{color:var(--orange-2)}h1,h2,h3{line-height:1.15;letter-spacing:-.02em}.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 16px}.muted{color:var(--muted)}.small{font-size:.875rem}code{background:#f1efe8;padding:.1em .35em;border-radius:6px;font-size:.9em;word-break:break-all}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:12px;font:inherit;font-weight:700;font-size:1rem;text-decoration:none;cursor:pointer;border:2px solid transparent;transition:transform .08s ease,background .15s ease}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.65;cursor:not-allowed}.btn-primary{background:var(--orange);color:#fff}.btn-primary:hover:not(:disabled){background:var(--orange-2)}.btn-dark{background:var(--navy);color:#fff}.btn-dark:hover{background:var(--navy-2)}.btn-ghost{background:transparent;color:#fff;border-color:#ffffff59}.btn-ghost:hover{border-color:#fff}.btn-block{width:100%}.site-header{background:var(--navy);color:#fff;position:sticky;top:0;z-index:20}.header-row{display:flex;align-items:center;justify-content:space-between;height:60px;gap:12px}.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:800;letter-spacing:-.01em}.logo-img{display:block;height:38px;width:auto}.site-footer .logo-img{height:48px}.logo-mark{background:var(--orange);color:#fff;font-size:.75rem;font-weight:800;padding:4px 7px;border-radius:6px;letter-spacing:.04em}.nav{display:flex;gap:18px}.nav a{color:#d5dae6;text-decoration:none;font-weight:600;font-size:.92rem}.nav a:hover{color:#fff}.hero{background:radial-gradient(1200px 500px at 85% 0%,#24365e 0%,var(--navy) 60%);color:#fff;padding:56px 0 64px;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}.pill{display:inline-block;background:#e8590c26;color:#ffb48a;border:1px solid rgba(232,89,12,.4);padding:5px 12px;border-radius:99px;font-size:.8rem;font-weight:700;letter-spacing:.05em;margin:0 0 18px}.hero h1{font-size:clamp(2rem,5vw,3.4rem);margin:0 0 12px;font-weight:800}.accent{color:#ff9a5c}.hero-hi{font-family:Mukta,sans-serif;font-size:1.2rem;color:#ffd2b6;margin:0 0 14px;font-weight:600}.lead{color:#c7cede;font-size:1.05rem;max-width:560px;margin:0 0 26px}.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:22px}.ticks{list-style:none;padding:0;margin:0;display:flex;gap:18px;flex-wrap:wrap;color:#c7cede;font-size:.92rem}.ticks li:before{content:"✓";color:#4ade80;font-weight:800;margin-right:6px}.ticks-col{flex-direction:column;gap:8px;color:var(--ink-2);margin:18px 0 22px}.ticks-col li:before{color:var(--green)}.hero-books{position:relative;height:420px}.book{position:absolute;width:62%;border-radius:6px;box-shadow:0 30px 60px #00000073}.book-back{right:0;top:0;transform:rotate(6deg);opacity:.9}.book-front{left:6%;top:28px;transform:rotate(-5deg)}.section{padding-top:64px;padding-bottom:64px}.band{background:#f3f1ea}.section-title{font-size:clamp(1.6rem,3.2vw,2.2rem);margin:0 0 8px}.section-sub{color:var(--muted);margin:0 0 28px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap;margin-bottom:24px}.subjects{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:26px}.subject{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px}.subject-n{font-size:2.2rem;font-weight:800;color:var(--orange);letter-spacing:-.03em}.subject-name{font-weight:700;margin-bottom:6px}.subject-name span{font-family:Mukta,sans-serif;color:var(--muted);font-weight:600;margin-left:4px}.subject p{color:var(--ink-2);font-size:.9rem;margin:0}.features{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:16px}.features div{border-left:3px solid var(--orange);padding:4px 0 4px 12px}.features b{display:block}.features span{color:var(--muted);font-size:.88rem}.tabs{display:inline-flex;background:#fff;border:1px solid var(--line);border-radius:12px;padding:4px}.tabs 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0 4px;font-size:1.35rem}.modal-x{position:absolute;top:10px;right:12px;border:0;background:transparent;font-size:1.8rem;line-height:1;cursor:pointer;color:var(--muted)}.eyebrow{text-transform:uppercase;letter-spacing:.1em;font-size:.72rem;font-weight:800;color:var(--orange);margin:0}.modal-price{display:flex;gap:10px;align-items:baseline;margin:0 0 16px}.modal-price strong{font-size:1.6rem}.modal-price s{color:var(--muted)}.co-form{display:grid;gap:14px}.co-form label{display:grid;gap:6px;font-weight:600;font-size:.92rem}.co-form input{font:inherit;padding:12px 14px;border:1.5px solid #d6d3c9;border-radius:10px;background:#fff;width:100%}.co-form input:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px #e8590c26}.hint{font-weight:400;color:var(--muted);font-size:.82rem}.phone{display:flex;align-items:stretch}.phone span{display:grid;place-items:center;padding:0 12px;background:#f1efe8;border:1.5px solid #d6d3c9;border-right:0;border-radius:10px 0 0 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.muted{color:#9aa3b5}.disclaimer{font-size:.8rem;color:#8892a6;max-width:420px}.copyright{border-top:1px solid #2a3a5c;margin-top:26px;padding-top:16px;font-size:.82rem;color:#8892a6}@media(max-width:860px){.hero{padding:36px 0 44px}.hero-grid{grid-template-columns:1fr}.hero-books{display:none}.subjects,.features{grid-template-columns:1fr 1fr}.pricing,.steps{grid-template-columns:1fr}.previews,.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1 / -1}.section{padding-top:48px;padding-bottom:48px}}@media(max-width:520px){.nav a:not(:last-child){display:none}.subjects,.features{grid-template-columns:1fr}.previews{grid-template-columns:1fr 1fr;gap:10px}.price-card.featured{order:-1}}