:root{--bg: #f5f7fb;--surface: #ffffff;--text: #131a2a;--muted: #5a6577;--border: #e1e6ef;--accent: #2f6bff;--accent-2: #5b3df5;--accent-text: #ffffff;--accent-soft: #edf2ff;--shadow: 0 1px 2px rgba(19, 26, 42, .05), 0 8px 24px rgba(19, 26, 42, .06);--radius: 14px;--max: 1100px;--c-finance: #2f6bff;--c-work: #0e9f6e;--c-math: #e8590c;--c-health: #e03177;--c-date: #7c3aed;--c-text: #0891b2;--c-utility: #475569;color-scheme:light}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg: #0d121b;--surface: #161d2a;--text: #e9edf5;--muted: #9aa6b8;--border: #283244;--accent: #7aa2ff;--accent-2: #9b86ff;--accent-text: #0b1220;--accent-soft: #1a2540;--shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);--c-finance: #7aa2ff;--c-work: #34d399;--c-math: #fb923c;--c-health: #f472b6;--c-date: #a78bfa;--c-text: #22d3ee;--c-utility: #94a3b8;color-scheme:dark}}:root[data-theme=dark]{--bg: #0d121b;--surface: #161d2a;--text: #e9edf5;--muted: #9aa6b8;--border: #283244;--accent: #7aa2ff;--accent-2: #9b86ff;--accent-text: #0b1220;--accent-soft: #1a2540;--shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);--c-finance: #7aa2ff;--c-work: #34d399;--c-math: #fb923c;--c-health: #f472b6;--c-date: #a78bfa;--c-text: #22d3ee;--c-utility: #94a3b8;color-scheme:dark}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}a{color:var(--accent)}img{max-width:100%;height:auto}h1,h2,h3{line-height:1.2;letter-spacing:-.015em;text-wrap:balance}h1{font-size:clamp(1.75rem,4vw,2.4rem);font-weight:800;margin:0 0 .5rem}h2{font-size:1.3rem;margin:2rem 0 .6rem}.wrap{max-width:var(--max);margin:0 auto;padding:0 16px}.narrow{max-width:760px}.lead{color:var(--muted);font-size:1.08rem;margin:0 0 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.btn{align-self:flex-start}.bar{display:flex;height:14px;border-radius:999px;overflow:hidden;background:var(--surface);margin-top:4px}.seg{display:block;height:100%;transition:width .25s ease}.seg-0{background:var(--c-finance)}.seg-1{background:var(--c-math)}.seg-2{background:var(--c-work)}.seg-3{background:var(--c-date)}.legend{list-style:none;display:flex;flex-wrap:wrap;gap:4px 16px;padding:0;margin:2px 0 0;font-size:.86rem;color:var(--muted)}.legend li{display:flex;align-items:center;gap:6px}.legend i{width:10px;height:10px;border-radius:3px}.prose p,.prose li{max-width:70ch}.prose h2{font-size:1.35rem;margin-top:2.2rem}.prose table{border-collapse:collapse;width:100%;margin:1rem 0;font-size:.95rem;display:block;overflow-x:auto}.prose th,.prose td{border:1px solid var(--border);padding:8px 10px;text-align:left}.prose th{background:var(--accent-soft)}.prose blockquote{margin:1rem 0;padding:2px 16px;border-left:3px solid var(--accent);color:var(--muted)}details{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:13px 16px;margin:8px 0}summary{font-weight:600;cursor:pointer}details p{margin:8px 0 0;color:var(--muted)}.note{color:var(--muted);font-size:.9rem;margin-top:2rem}.cta{background:var(--accent-soft);border-radius:var(--radius);padding:18px 20px;margin:2rem 0}.cta p{margin:0 0 10px;font-weight:700}.meta{color:var(--muted);font-size:.9rem;margin:0 0 1.5rem}.ad{margin:24px 0;min-height:100px;text-align:center}.breadcrumb{font-size:.88rem;color:var(--muted);margin:0 0 12px}.breadcrumb a{color:var(--muted)}.site-footer{border-top:1px solid var(--border);background:var(--surface);padding:40px 0 24px;color:var(--muted);font-size:.92rem}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}@media(max-width:720px){.footer-grid{grid-template-columns:1fr;gap:22px}}.site-footer h2{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text);margin:4px 0 10px}.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}.site-footer a:not(.logo){color:var(--muted);text-decoration:none}.site-footer a:not(.logo):hover{color:var(--accent);text-decoration:underline}.site-footer p{margin:.5rem 0;max-width:44ch}.footer-bottom{margin-top:28px;padding-top:18px;border-top:1px solid var(--border);font-size:.85rem}.footer-bottom p{max-width:none}[hidden]{display:none!important}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important;animation:none!important}}