:root{color-scheme:light;--app-bg:#f5f7fb;--app-surface:#fff;--app-ink:#18243b;--app-muted:#5b6880;--app-line:#dce3ef;--app-brand:#2563eb;--app-soft:#eaf0ff;--app-shadow:0 24px 70px #233e6812}
html[data-theme="dark"]{color-scheme:dark;--app-bg:#101827;--app-surface:#172238;--app-ink:#edf2fc;--app-muted:#a9b6cf;--app-line:#31415c;--app-brand:#92b5ff;--app-soft:#203350;--app-shadow:0 24px 70px #0003}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--app-bg);color:var(--app-ink);font:16px/1.65 Inter,"Segoe UI",Arial,sans-serif}a{color:var(--app-brand);text-underline-offset:4px}button,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--app-brand);outline-offset:4px}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.15;letter-spacing:-.035em}h1{font-size:clamp(40px,5vw,70px);max-width:12ch;margin-bottom:24px}h2{font-size:clamp(28px,3.3vw,42px)}h3{font-size:21px;letter-spacing:-.02em}p{color:var(--app-muted)}.shell{width:min(1180px,calc(100% - 48px));margin-inline:auto}.sr-only,.skip-link:not(:focus){position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip-link:focus{position:fixed;top:10px;inset-inline-start:10px;padding:10px;background:var(--app-surface);z-index:100}.site-header{border-bottom:1px solid var(--app-line);background:var(--app-surface)}.header-inner{display:flex;align-items:center;gap:24px;min-height:88px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--app-ink);font-weight:800;line-height:1.3}.brand img{border-radius:10px}.brand small{display:block;font-size:11px;font-weight:500;color:var(--app-muted)}.header-nav{display:flex;gap:24px;margin-inline-start:auto}.header-nav a{font-size:13px;color:var(--app-muted);text-decoration:none;font-weight:600}.preferences{display:flex;align-items:center;gap:10px}.preferences select{width:140px;max-width:100%;padding:9px 10px;color:var(--app-ink);background:var(--app-bg);border:1px solid var(--app-line);border-radius:9px;font-size:12px}.theme-toggle{border:1px solid var(--app-line);width:38px;height:38px;border-radius:50%;color:var(--app-ink);background:var(--app-bg);font-size:21px}.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:50px;align-items:center;padding-block:90px 70px}.eyebrow{font-size:11px;letter-spacing:.14em;font-weight:800;color:var(--app-brand);margin-bottom:18px}.lead{font-size:18px;line-height:1.75;max-width:52ch}.actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.button{display:inline-flex;justify-content:center;align-items:center;gap:10px;min-height:46px;padding:12px 20px;border-radius:11px;border:1px solid var(--app-line);text-decoration:none;font-size:14px;font-weight:700;line-height:1.4;text-align:center}.button.primary{background:#2563eb;color:#fff;border-color:#2563eb;box-shadow:0 5px 14px #2563eb22}.button.secondary{color:var(--app-ink);background:var(--app-surface)}.small-note{font-size:12px;margin-top:18px;max-width:50ch}.pwa-status{font-size:13px;border-inline-start:3px solid var(--app-brand);padding-inline-start:12px}.device-preview{margin:0;position:relative;padding-block:18px 60px;padding-inline-end:28px;min-width:0}.desktop-device{border:1px solid var(--app-line);border-radius:15px;background:var(--app-surface);box-shadow:var(--app-shadow);overflow:hidden;transform:rotate(-2deg)}.device-toolbar{display:flex;align-items:center;gap:8px;padding:12px;background:var(--app-surface);font-size:12px;border-bottom:1px solid var(--app-line)}.device-toolbar span{margin-inline-start:auto;color:var(--app-muted)}.mock-workspace{display:flex;gap:16px;background:var(--app-soft);padding:22px 20px 25px}.mock-tools{display:flex;flex-direction:column;gap:16px;color:var(--app-brand);font-weight:700;padding-top:5px}.mock-paper{flex:1;background:var(--app-surface);padding:24px;min-height:275px;box-shadow:0 5px 12px #00000008}.paper-mark{font:bold 24px Georgia,serif;color:var(--app-brand)}.mock-paper h2{font-size:19px;letter-spacing:-.03em;margin-top:15px}.mock-paper p{font-size:12px}.paper-lines{display:grid;gap:8px;margin-block:20px}.paper-lines i{height:4px;border-radius:4px;background:var(--app-line);width:100%}.paper-lines i:last-child{width:65%}.paper-art{display:flex;align-items:end;gap:10px;height:48px}.paper-art span{width:40px;height:32px;background:#a9bffe;border-radius:8px 8px 0 0}.paper-art span:nth-child(2){height:48px;background:#2563eb}.paper-art span:nth-child(3){height:23px;background:#accbbe}.mock-paper small{display:block;font-size:9px;color:var(--app-muted);margin-top:16px}.phone-device{position:absolute;inset-inline-end:-8px;bottom:60px;width:128px;padding:18px 10px 12px;border:5px solid #243550;background:var(--app-surface);border-radius:25px;box-shadow:0 12px 28px #18243b25;text-align:center;transform:rotate(6deg)}.phone-notch{position:absolute;top:4px;inset-inline-start:calc(50% - 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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{.site-header,.preferences,.actions,.final-cta,.device-preview,.site-footer{display:none}.shell{width:100%}.hero,.section{padding-block:20px}.feature-grid{grid-template-columns:repeat(2,1fr)}.platform-card{break-inside:avoid}body{background:#fff;color:#111}}