:root{
  --ink:#0b1736; --ink2:#18264b; --muted:#66728a; --line:#e7ecf4; --bg:#f7f9fc; --card:#fff;
  --blue:#2657ff; --blue2:#5b7cff; --cyan:#11b8c7; --green:#18a673; --orange:#f59e0b; --purple:#7657e8; --red:#e55353;
  --navy:#0c1733; --navy2:#111e40; --radius:20px; --shadow:0 14px 40px rgba(10,23,54,.08); --shadow2:0 26px 70px rgba(20,45,100,.14);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);line-height:1.5}
a{text-decoration:none;color:inherit}button,input,select,textarea{font:inherit}button{cursor:pointer}
.container{width:min(1180px,calc(100% - 40px));margin:auto}.muted{color:var(--muted)}.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:.16em;font-weight:900;color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:12px 17px;border:1px solid transparent;font-weight:800;font-size:14px;transition:.18s ease}.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 12px 24px rgba(38,87,255,.2)}.btn-dark{background:var(--ink);color:#fff}.btn-outline{background:#fff;border-color:var(--line);color:var(--ink)}.btn-soft{background:#eef3ff;color:#2449cd}.btn-green{background:#e9fbf3;color:#08764e}.btn-danger{background:#fff0f0;color:#bb3434}.btn-block{width:100%}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.card-pad{padding:24px}.grid{display:grid;gap:20px}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.section{padding:76px 0}.section.alt{background:#fff}.section-head{text-align:center;max-width:760px;margin:0 auto 36px}.section-head h2{font-size:38px;line-height:1.12;margin:10px 0 14px;letter-spacing:-.03em}.section-head p{font-size:17px;color:var(--muted)}
.public-header{background:rgba(247,249,252,.88);backdrop-filter:blur(16px);border-bottom:1px solid rgba(231,236,244,.8);position:sticky;top:0;z-index:20}.public-header .inner{width:min(1240px,calc(100% - 40px));height:76px;margin:auto;display:flex;align-items:center;gap:28px}.brand{display:flex;gap:12px;align-items:center;font-weight:900}.brand-mark{width:42px;height:42px;border-radius:13px;background:linear-gradient(135deg,var(--blue),#7b61ff);color:#fff;display:grid;place-items:center;font-weight:1000;box-shadow:0 10px 24px rgba(38,87,255,.22)}.brand span{display:block;font-size:11px;color:var(--muted);font-weight:700;letter-spacing:.02em}.brand strong{display:block;letter-spacing:-.02em}.home-nav{display:flex;gap:24px;margin-left:auto}.home-nav a{font-size:14px;font-weight:800;color:#44516b}.home-nav a:hover{color:var(--blue)}.header-actions{display:flex;gap:10px}
.hero{padding:88px 0 52px;background:radial-gradient(circle at 90% 10%,rgba(38,87,255,.14),transparent 34%),linear-gradient(180deg,#f7f9fc 0%,#edf3ff 100%)}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:40px;align-items:center}.hero h1{font-size:62px;line-height:1.01;letter-spacing:-.045em;margin:13px 0 20px}.hero p{font-size:18px;color:#596780;max-width:650px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}.trust-row{display:flex;gap:28px;flex-wrap:wrap;margin-top:28px;color:#56637a;font-size:13px;font-weight:800}.hero-visual{position:relative}.browser{border:1px solid #dfe6f1;background:#fff;border-radius:25px;box-shadow:var(--shadow2);overflow:hidden}.browser-bar{display:flex;align-items:center;gap:7px;padding:12px 14px;border-bottom:1px solid var(--line);background:#fbfcfe}.browser-dot{width:8px;height:8px;border-radius:50%;background:#d4dbe8}.browser-url{margin-left:8px;flex:1;height:10px;border-radius:99px;background:#eef2f8}.mock{padding:18px}.mock-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.mini-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.mini-kpi{padding:12px;border:1px solid var(--line);border-radius:14px;background:#fff}.mini-kpi strong{font-size:18px;display:block}.mini-kpi span{font-size:10px;color:var(--muted)}.mock-list{display:grid;gap:10px;margin-top:14px}.mock-row{display:flex;justify-content:space-between;gap:12px;padding:11px 12px;border:1px solid var(--line);border-radius:12px}.pill{display:inline-flex;align-items:center;gap:6px;padding:6px 9px;border-radius:999px;font-size:11px;font-weight:900}.pill.blue{background:#edf2ff;color:#2f50c8}.pill.green{background:#eafaf3;color:#08784f}.pill.orange{background:#fff6df;color:#9c6200}.pill.red{background:#fff0f0;color:#b93636}.pill.purple{background:#f1edff;color:#6940c0}
.stat-strip{margin-top:-14px}.stat-card{padding:20px}.stat-card strong{font-size:28px;letter-spacing:-.03em;display:block}.stat-card span{font-size:12px;color:var(--muted)}
.feature-card{padding:24px}.feature-icon{width:48px;height:48px;border-radius:14px;background:#eef3ff;display:grid;place-items:center;color:var(--blue);font-weight:1000;margin-bottom:18px}.feature-card h3{margin:0 0 8px;font-size:18px}.feature-card p{color:var(--muted);margin:0}
.subject-card{padding:22px;min-height:168px;display:flex;flex-direction:column;justify-content:space-between}.subject-top{display:flex;align-items:center;justify-content:space-between}.subject-code{width:44px;height:44px;border-radius:13px;background:#eff4ff;color:var(--blue);display:grid;place-items:center;font-weight:1000}.subject-card h3{margin:14px 0 5px;font-size:18px}.subject-card p{margin:0;color:var(--muted);font-size:13px}.subject-card .btn{margin-top:16px;align-self:flex-start}
.paper-card{overflow:hidden}.paper-cover{height:120px;background:linear-gradient(135deg,#0d234c,#2b5cff);padding:18px;color:#fff;display:flex;flex-direction:column;justify-content:space-between}.paper-cover.green{background:linear-gradient(135deg,#0b463a,#1aa97a)}.paper-cover.purple{background:linear-gradient(135deg,#241957,#7657e8)}.paper-body{padding:20px}.paper-body h3{margin:8px 0}.paper-meta{display:flex;gap:7px;flex-wrap:wrap;color:var(--muted);font-size:12px}.price{font-size:26px;font-weight:1000;letter-spacing:-.03em}
.testimonial{padding:24px}.quote{font-size:15px;color:#485670}.person{display:flex;align-items:center;gap:11px;margin-top:20px}.avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#dfe7ff,#b6c6ff);display:grid;place-items:center;color:#2148b7;font-weight:1000}.person small{display:block;color:var(--muted)}
.cta{padding:32px;border-radius:25px;background:linear-gradient(135deg,#10204a,#2a56ff);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:20px}.cta h3{font-size:30px;margin:0 0 8px}.cta p{margin:0;color:#d4ddf4}.cta .btn{background:#fff;color:#193ba5}
.footer{background:#0a1430;color:#d7e0f1;padding:55px 0}.footer-grid{display:grid;grid-template-columns:1.2fr repeat(3,1fr);gap:32px}.footer h4{margin:0 0 10px;color:#fff}.footer a{display:block;color:#afbdd5;font-size:13px;margin:8px 0}.footer-note{margin-top:40px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;color:#7f91b2;font-size:12px}
.page-hero{padding:54px 0 30px;background:linear-gradient(180deg,#eff4ff,#f7f9fc)}.page-hero h1{font-size:44px;letter-spacing:-.03em;margin:10px 0}.page-hero p{max-width:760px;color:var(--muted);font-size:17px}.crumbs{font-size:12px;color:#70809b;font-weight:800}
.auth-wrap{min-height:100vh;background:radial-gradient(circle at 80% 10%,rgba(38,87,255,.16),transparent 34%),#f4f7fc;display:grid;place-items:center;padding:28px}.auth-card{width:min(1020px,100%);display:grid;grid-template-columns:1fr 1fr;background:#fff;border:1px solid var(--line);border-radius:26px;overflow:hidden;box-shadow:var(--shadow2)}.auth-left{padding:42px;background:linear-gradient(160deg,#0b1837,#1f4fff);color:#fff}.auth-left h1{font-size:40px;line-height:1.05;margin:16px 0}.auth-left p{color:#d4def1}.auth-bullets{display:grid;gap:12px;margin-top:28px}.auth-bullet{display:flex;gap:10px}.auth-bullet i{width:22px;height:22px;border-radius:7px;background:rgba(255,255,255,.14);display:grid;place-items:center;font-style:normal}.auth-right{padding:42px}.auth-right h2{font-size:28px;margin:0}.switcher{display:flex;background:#f1f4f9;border-radius:13px;padding:4px;gap:4px;margin:22px 0}.switcher button{flex:1;border:0;background:transparent;padding:10px;border-radius:10px;font-weight:900;color:var(--muted)}.switcher button.active{background:#fff;color:var(--ink);box-shadow:0 4px 12px rgba(20,30,60,.08)}.field{display:grid;gap:7px;margin-bottom:15px}.field label{font-size:12px;font-weight:900;color:#46546c}.field input,.field select,.field textarea{border:1px solid #dbe3ef;border-radius:12px;padding:12px 13px;outline:0;background:#fff}.field input:focus,.field select:focus,.field textarea:focus{border-color:#9ab2ff;box-shadow:0 0 0 4px #e9efff}.checkline{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}
/* Portal */
.portal-shell{display:flex;min-height:100vh;background:#f6f8fc}.portal-sidebar{width:278px;background:linear-gradient(180deg,#0a1530,#0d1b3d);color:#d5deee;position:fixed;left:0;top:0;bottom:0;overflow:auto;padding:18px 14px;z-index:30}.portal-brand{display:flex;align-items:center;gap:11px;padding:5px 10px 20px;border-bottom:1px solid rgba(255,255,255,.08)}.portal-brand .brand-mark{width:39px;height:39px}.portal-brand strong{display:block;color:#fff}.portal-brand span{font-size:10px;color:#91a3c1}.nav-label{font-size:10px;text-transform:uppercase;letter-spacing:.14em;color:#7186aa;font-weight:900;padding:18px 10px 8px}.portal-nav{display:grid;gap:5px}.portal-nav a{display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:12px;color:#b8c7df;font-size:13px;font-weight:800}.portal-nav a:hover,.portal-nav a.active{background:linear-gradient(90deg,rgba(60,105,255,.24),rgba(60,105,255,.08));color:#fff}.nav-ico{width:22px;text-align:center;color:#86a3ff}.sidebar-note{margin:18px 4px 0;border:1px solid rgba(255,255,255,.09);background:rgba(255,255,255,.04);border-radius:15px;padding:13px;font-size:11px;color:#91a3c1}.portal-main{margin-left:278px;min-height:100vh;width:calc(100% - 278px)}.portal-topbar{height:72px;position:sticky;top:0;z-index:20;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 26px}.portal-top-left{display:flex;align-items:center;gap:13px}.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px}.breadcrumb{font-size:13px;color:var(--muted);font-weight:800}.portal-user{display:flex;align-items:center;gap:11px}.user-avatar{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,#dce6ff,#b4c9ff);display:grid;place-items:center;color:#2144ab;font-weight:1000}.portal-content{padding:26px}.portal-title{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:22px}.portal-title h1{font-size:29px;letter-spacing:-.03em;margin:0}.portal-title p{margin:6px 0 0;color:var(--muted)}.kpi{padding:19px}.kpi .label{font-size:11px;text-transform:uppercase;color:#7a879d;font-weight:900;letter-spacing:.08em}.kpi strong{font-size:29px;display:block;margin:4px 0}.kpi small{color:var(--green);font-weight:800}.panel-title{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px}.panel-title h3{margin:0;font-size:17px}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;font-size:12px;vertical-align:top}.table th{color:#7a879d;background:#fafbfe;font-size:11px;text-transform:uppercase;letter-spacing:.05em}.progress{height:8px;border-radius:99px;background:#edf1f7;overflow:hidden}.progress span{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--blue),var(--purple))}.chart{height:220px;display:flex;align-items:end;gap:10px;padding-top:18px}.bar{flex:1;background:linear-gradient(180deg,#5f80ff,#2c59ef);border-radius:8px 8px 2px 2px;min-width:18px}.chart-labels{display:flex;gap:10px;color:#8995aa;font-size:10px;margin-top:8px}.chart-labels span{flex:1;text-align:center}.notice{padding:15px;border-radius:15px;background:#eef4ff;border:1px solid #d8e4ff;color:#23469c;font-size:12px}.review-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}.answer{padding:16px;border:1px solid var(--line);border-radius:15px;background:#fbfcff}.score-box{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.score-box div{padding:13px;border:1px solid var(--line);border-radius:12px;text-align:center}.score-box strong{font-size:20px;display:block}.section-tabs{display:flex;gap:8px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:17px}.section-tabs a{padding:8px 11px;border-radius:10px;font-size:12px;font-weight:900;color:#66728a}.section-tabs a.active{background:#edf2ff;color:#2449c7}.question-option{padding:12px;border:1px solid var(--line);border-radius:12px;display:block;margin-top:9px}.question-option.selected{border-color:#8eabff;background:#eef3ff}.question-option input{margin-right:7px}.navigator{display:flex;gap:7px;flex-wrap:wrap}.qnum{width:34px;height:34px;border:1px solid var(--line);background:#fff;border-radius:9px;font-size:11px;font-weight:900}.qnum.done{background:#eaf9f3;color:#08784f;border-color:#b8e8d0}.qnum.current{background:#edf2ff;color:#2f53cf;border-color:#9bb2ff}
.toast{position:fixed;right:22px;bottom:22px;padding:13px 16px;background:#111a32;color:#fff;border-radius:13px;display:none;z-index:100;box-shadow:var(--shadow)}
@media(max-width:1050px){.home-nav{display:none}.hero h1{font-size:48px}.g4{grid-template-columns:repeat(2,1fr)}.review-layout{grid-template-columns:1fr}}@media(max-width:880px){.hero-grid{grid-template-columns:1fr}.hero{padding-top:52px}.auth-card{grid-template-columns:1fr}.portal-sidebar{transform:translateX(-100%);transition:.22s}.portal-sidebar.open{transform:translateX(0)}.portal-main{margin-left:0;width:100%}.menu-toggle{display:inline-flex}.mobile-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:25}.mobile-overlay.show{display:block}.g3,.g2{grid-template-columns:1fr}.portal-topbar{padding:0 16px}.portal-content{padding:18px}}@media(max-width:560px){.container{width:min(100% - 26px,1180px)}.section{padding:52px 0}.section-head h2{font-size:30px}.hero h1{font-size:38px}.g4{grid-template-columns:1fr}.hero-actions{flex-direction:column;align-items:stretch}.header-actions .btn-outline{display:none}.cta{display:block}.cta .btn{margin-top:16px}.page-hero h1{font-size:34px}.portal-title{display:block}.portal-title .btn{margin-top:14px}.score-box{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-note{display:block}}