:root{--bg:#f5f7fb;--text:#0f172a;--muted:#64748b;--card:#fff;--line:#e2e8f0;--blue:#2563eb;--blue2:#1d4ed8;--green:#16a34a;--orange:#f97316;--purple:#7c3aed;--shadow:0 25px 70px rgba(15,23,42,.12)}
*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}.topbar{height:76px;display:flex;align-items:center;justify-content:space-between;padding:0 7vw;background:rgba(255,255,255,.86);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:22px}.brand-mark{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;font-size:15px;box-shadow:0 10px 24px rgba(37,99,235,.28)}nav{display:flex;align-items:center;gap:24px;color:#334155;font-weight:600}.login-link{color:var(--blue)}.start-btn,.primary{background:var(--blue);color:#fff!important;padding:12px 18px;border-radius:14px;font-weight:800;box-shadow:0 12px 24px rgba(37,99,235,.22)}.start-btn:hover,.primary:hover,button:hover{background:var(--blue2)}.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center;padding:82px 7vw 70px;background:radial-gradient(circle at top right,#dbeafe,transparent 45%),linear-gradient(180deg,#fff,#f5f7fb)}.eyebrow{font-weight:800;color:var(--blue);text-transform:uppercase;letter-spacing:.12em;font-size:13px}.hero h1{font-size:clamp(42px,6vw,72px);line-height:.98;margin:14px 0 18px;letter-spacing:-.05em}.lead{font-size:22px;line-height:1.55;color:var(--muted);max-width:720px}.hero-actions{display:flex;gap:14px;margin-top:30px}.secondary{padding:12px 18px;border-radius:14px;border:1px solid var(--line);background:#fff;font-weight:800}.hero-card{background:#fff;border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);overflow:hidden}.window-bar{height:54px;background:#f8fafc;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;padding:0 18px}.window-bar span{width:12px;height:12px;border-radius:50%;background:#cbd5e1}.preview-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:22px}.preview{min-height:130px;border:1px solid var(--line);border-radius:22px;padding:20px;background:linear-gradient(180deg,#fff,#f8fafc)}.preview.big{grid-row:span 2;background:linear-gradient(135deg,#eff6ff,#fff)}.preview b{font-size:24px}.preview p,.cards p,.split p,.cta p,.muted{color:var(--muted);line-height:1.6}.apps,.split,.cta{padding:70px 7vw}.apps h2,.split h2,.cta h2{font-size:40px;letter-spacing:-.03em;margin:0 0 24px}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.cards article,.split,.cta,.login-card,.login-info{background:#fff;border:1px solid var(--line);border-radius:26px;box-shadow:0 16px 40px rgba(15,23,42,.07)}.cards article{padding:24px}.icon{width:52px;height:52px;border-radius:17px;display:grid;place-items:center;color:#fff;font-weight:900}.doc{background:var(--blue)}.sheet{background:var(--green)}.slide{background:var(--orange)}.drive{background:var(--purple)}.split{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;margin:0 7vw 70px;padding:46px}.feature-list{display:grid;gap:14px;margin:0;padding:0;list-style:none}.feature-list li{padding:16px 18px;background:#f8fafc;border:1px solid var(--line);border-radius:16px;font-weight:700}.cta{text-align:center;margin:0 7vw 70px}.cta .primary{display:inline-block;margin-top:12px}footer{display:flex;justify-content:space-between;padding:24px 7vw;color:#64748b;border-top:1px solid var(--line);background:#fff}.login-page{min-height:100vh;background:radial-gradient(circle at top left,#bfdbfe,transparent 34%),radial-gradient(circle at bottom right,#ddd6fe,transparent 30%),#f8fafc;display:grid;place-items:center;padding:32px}.login-shell{width:min(1080px,100%);display:grid;grid-template-columns:1fr 430px;gap:24px}.login-info{padding:48px;display:flex;flex-direction:column;justify-content:center;min-height:560px;background:linear-gradient(135deg,#fff,#eff6ff)}.login-info h1{font-size:52px;line-height:1;letter-spacing:-.05em;margin:42px 0 14px}.mini-apps{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}.mini-apps span{padding:10px 14px;background:#fff;border:1px solid var(--line);border-radius:999px;font-weight:800}.login-card{padding:38px;align-self:center}.login-card h2{font-size:34px;margin:0 0 6px}label{display:block;font-weight:800;margin:18px 0 8px}input{width:100%;padding:15px 16px;border:1px solid #cbd5e1;border-radius:14px;font-size:16px;background:#fff}input:focus{outline:3px solid #bfdbfe;border-color:var(--blue)}button{width:100%;border:0;border-radius:14px;background:var(--blue);color:#fff;font-size:17px;font-weight:900;padding:15px 18px;margin-top:22px;cursor:pointer}.alert{background:#fee2e2;color:#991b1b;border:1px solid #fecaca;border-radius:14px;padding:12px 14px;margin:18px 0;font-weight:700}.login-help{display:flex;justify-content:space-between;margin-top:18px;font-weight:700;color:var(--blue)}
@media(max-width:900px){.topbar{height:auto;padding:18px 20px;align-items:flex-start}.topbar nav{gap:12px;flex-wrap:wrap;justify-content:flex-end}.hero,.cards,.split,.login-shell{grid-template-columns:1fr}.hero{padding:52px 22px}.apps,.split,.cta{margin:0;padding:42px 22px}.cards{display:grid}.login-info{min-height:auto}.login-info h1{font-size:40px}footer{display:grid;gap:8px}.hero-actions{flex-wrap:wrap}}