:root{color-scheme:light;--bg: #f6f7f9;--surface: #ffffff;--surface-2: #eef1f4;--text: #1b1f24;--muted: #5b636c;--border: #e1e5ea;--accent: #1f6feb;--accent-contrast: #ffffff;--sent-active-bg: #ffe08a;--translation-bg: #eef4ff;--translation-text: #28406b;--reader-font-size: 1.15rem;--reader-line: 1.75;--maxw: 760px}:root[data-theme=dark]{color-scheme:dark;--bg: #111315;--surface: #191c20;--surface-2: #24282d;--text: #eef2f6;--muted: #a5adb7;--border: #343a42;--accent: #78a8ff;--accent-contrast: #111315;--sent-active-bg: #5a4316;--translation-bg: #1b2941;--translation-text: #dbe8ff}*{box-sizing:border-box}html,body{margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.container{max-width:var(--maxw);margin:0 auto;padding:0 16px}.muted{color:var(--muted)}.theme-switch{position:fixed;right:12px;bottom:12px;z-index:80;display:flex;gap:2px;padding:3px;background:color-mix(in srgb,var(--surface) 92%,transparent);border:1px solid var(--border);border-radius:10px;box-shadow:0 6px 22px #00000029}.theme-switch__btn{width:30px;height:30px;border:none;border-radius:7px;background:transparent;color:var(--muted);cursor:pointer;font-size:1rem}.theme-switch__btn:hover{color:var(--text);background:var(--surface-2)}.theme-switch__btn.is-active{color:var(--accent-contrast);background:var(--accent)}.topbar{position:sticky;top:0;z-index:10;background:var(--surface);border-bottom:1px solid var(--border)}.topbar__inner{display:flex;align-items:center;gap:14px;max-width:1120px;min-height:58px;padding:10px 20px;flex-wrap:wrap}.topbar__title{margin:0;font-weight:700;font-size:1.02rem}.topbar__title--link{color:var(--text);text-decoration:none}.topbar__spacer{flex:1 1 auto}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.topbar__user{max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.88rem}.topbar__back{border:1px solid var(--border);background:var(--surface-2);color:var(--text);border-radius:8px;padding:4px 10px;cursor:pointer;font-size:1rem}.reader-heading{display:flex;min-width:0;flex:1 1 auto;flex-direction:column;line-height:1.2}.reader-heading__title{font-weight:650;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.reader-heading__meta{color:var(--muted);font-size:.78rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.offline-status{position:relative;flex:0 0 auto;display:inline-flex}.offline-status__button{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:8px;background:var(--surface-2);color:var(--muted);cursor:pointer}.offline-status__button:hover{border-color:var(--accent);color:var(--accent)}.offline-status__button svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2}.offline-status__button--saving svg{animation:offline-pulse 1.2s ease-in-out infinite}.offline-status__button--ready,.offline-status__button--offline{color:#146c43;background:#e8f5ee;border-color:#b8dfc8}:root[data-theme=dark] .offline-status__button--ready,:root[data-theme=dark] .offline-status__button--offline{color:#9de1b7;background:#193326;border-color:#2e6b49}.offline-status__button--error{color:#9a3412;background:#fff1e8;border-color:#f2c6aa}:root[data-theme=dark] .offline-status__button--error{color:#ffb088;background:#3b2118;border-color:#7b3b24}.offline-status__popover{position:absolute;z-index:30;top:calc(100% + 8px);right:0;width:min(260px,calc(100vw - 24px));display:grid;gap:4px;border:1px solid var(--border);border-radius:8px;padding:10px 12px;background:var(--surface);color:var(--text);box-shadow:0 16px 36px #11131529;font-size:.86rem;line-height:1.35}.offline-status__popover span{color:var(--muted)}@keyframes offline-pulse{0%,to{opacity:.55;transform:translateY(-1px)}50%{opacity:1;transform:translateY(1px)}}.landing-hero{min-height:clamp(430px,52vh,540px);display:flex;align-items:center;background:linear-gradient(135deg,#f6e4bc,#ecd19b);border-bottom:1px solid rgba(17,19,21,.08);color:#111315}:root[data-theme=dark] .landing-hero{background:linear-gradient(135deg,#f3deb2,#dfc075);color:#111315}.landing-hero__inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,360px);gap:48px;align-items:center;max-width:1120px;padding:56px 20px 52px}.landing-hero__copy{min-width:0}.landing-hero__eyebrow{max-width:680px;margin:0 0 14px;color:#111315b8;font-size:.82rem;font-weight:700;text-transform:uppercase}.landing-hero h1{max-width:720px;margin:0;font-size:clamp(3rem,7.6vw,6.1rem);line-height:1;letter-spacing:0}.landing-hero__lead{max-width:640px;margin:18px 0 0;font-size:clamp(1.08rem,2vw,1.34rem);line-height:1.5}.landing-hero__actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.landing-hero__primary,.landing-hero__secondary{min-height:42px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;padding:9px 14px;font-size:1rem;font-weight:650;text-decoration:none;cursor:pointer}.landing-hero__primary{border:1px solid #111315;background:#111315;color:#fff}.landing-hero__secondary{border:1px solid rgba(17,19,21,.26);background:#ffffff3d;color:#111315}.landing-hero__primary:hover,.landing-hero__secondary:hover{filter:brightness(1.05)}.landing-points{display:flex;flex-wrap:wrap;gap:8px 16px;max-width:720px;margin:22px 0 0;padding:0;list-style:none;color:#111315b8;font-size:.92rem}.landing-points li{position:relative;padding-left:14px}.landing-points 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