:root{--portal-bg:#f4f7fb;--portal-card:#fff;--portal-text:#0f172a;--portal-muted:#64748b;--portal-primary:#2563eb;--portal-border:#e2e8f0;--portal-shadow:0 24px 70px rgba(15,23,42,.12)}
body.portal-body{margin:0;min-height:100vh;background:radial-gradient(circle at top left,#dbeafe 0,transparent 34%),radial-gradient(circle at bottom right,#ede9fe 0,transparent 36%),var(--portal-bg);color:var(--portal-text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.portal-shell{min-height:100vh;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(390px,.8fr)}
.portal-hero{padding:clamp(40px,7vw,96px);display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(145deg,#0f172a,#1e3a8a 62%,#2563eb);color:#fff;position:relative;overflow:hidden}
.portal-hero:after{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:rgba(255,255,255,.08);right:-140px;bottom:-180px}
.portal-brand{display:flex;align-items:center;gap:14px;position:relative;z-index:1}.portal-mark{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:rgba(255,255,255,.14);font-weight:800;backdrop-filter:blur(12px)}
.portal-hero h1{font-size:clamp(38px,5vw,72px);line-height:1.02;max-width:760px;margin:32px 0 18px}.portal-hero p{font-size:18px;line-height:1.7;max-width:650px;color:#dbeafe}.portal-badges{display:flex;gap:10px;flex-wrap:wrap}.portal-badge{padding:9px 13px;border:1px solid rgba(255,255,255,.22);border-radius:999px;background:rgba(255,255,255,.08);font-size:13px}
.portal-auth{display:flex;align-items:center;justify-content:center;padding:32px}.portal-card{width:min(100%,480px);background:rgba(255,255,255,.92);border:1px solid rgba(255,255,255,.65);border-radius:28px;padding:36px;box-shadow:var(--portal-shadow);backdrop-filter:blur(18px)}.portal-card h2{font-size:30px;margin:0 0 10px}.portal-card .lead{color:var(--portal-muted);margin:0 0 28px;line-height:1.6}
.portal-field{margin-bottom:18px}.portal-field label{display:block;font-size:13px;font-weight:700;margin-bottom:8px}.portal-field input{width:100%;box-sizing:border-box;border:1px solid var(--portal-border);border-radius:14px;padding:14px 15px;font-size:15px;background:#fff;outline:none;transition:.2s}.portal-field input:focus{border-color:var(--portal-primary);box-shadow:0 0 0 4px rgba(37,99,235,.12)}
.portal-submit{width:100%;border:0;border-radius:14px;padding:15px;background:linear-gradient(135deg,#2563eb,#1d4ed8);color:#fff;font-weight:800;font-size:15px;cursor:pointer;box-shadow:0 12px 26px rgba(37,99,235,.25)}.portal-submit:disabled{opacity:.65;cursor:wait}.portal-error{min-height:22px;color:#b91c1c;font-size:13px;margin:8px 0 12px}.portal-foot{margin-top:24px;padding-top:20px;border-top:1px solid var(--portal-border);font-size:12px;color:var(--portal-muted)}
.modules-page{padding:36px;max-width:1240px;margin:0 auto}.modules-top{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:32px}.modules-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}.module-card{background:#fff;border:1px solid var(--portal-border);border-radius:22px;padding:24px;box-shadow:0 12px 36px rgba(15,23,42,.07);text-decoration:none;color:inherit;transition:.2s}.module-card:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(15,23,42,.12)}.module-icon{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;color:#fff;font-weight:800;margin-bottom:20px}.module-card h3{margin:0 0 8px}.module-card p{color:var(--portal-muted);line-height:1.55;min-height:48px}.module-action{font-weight:800;color:var(--portal-primary)}
@media(max-width:900px){.portal-shell{grid-template-columns:1fr}.portal-hero{min-height:340px;padding:36px}.portal-auth{padding:22px}.portal-card{padding:26px}.portal-hero h1{font-size:42px}}