:root{--bg:#f8f5ef;--card:#fffdf8;--text:#24211d;--muted:#7c7367;--line:#e6ded1;--accent:#7f5af0;--accent-soft:#eee8ff;--danger:#b54708;--ok:#276749}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top left,#fff7d6 0,transparent 30rem),linear-gradient(180deg,#fbf7ef,#f5efe4);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans SC,PingFang SC,Microsoft YaHei,sans-serif}a{color:inherit}main{padding:32px 0 64px}.nav,main{width:min(1080px,calc(100vw - 32px));margin:0 auto}.nav{padding:18px 0;display:flex;align-items:center;gap:14px}.nav a{text-decoration:none;color:var(--muted);font-size:14px}.nav a:first-child{font-weight:800;color:var(--text);margin-right:auto}.card{background:rgba(255,253,248,.92);border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 18px 45px rgba(71,49,26,.08)}.grid{display:grid;grid-gap:16px;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}h1{margin:0 0 12px;font-size:clamp(28px,4vw,44px);letter-spacing:-.04em}h2{margin:0 0 14px;font-size:20px}p{color:var(--muted);line-height:1.7}label{display:block;font-weight:700;margin:14px 0 8px}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:14px;padding:12px 13px;background:#fff;color:var(--text);font:inherit}textarea{min-height:92px;resize:vertical}.button,button{border:0;border-radius:999px;background:var(--accent);color:#fff;padding:12px 18px;font-weight:800;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}button:disabled{opacity:.55;cursor:not-allowed}.button-secondary{background:var(--accent-soft);color:var(--accent)}.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.badge{display:inline-flex;border-radius:999px;padding:6px 10px;background:var(--accent-soft);color:var(--accent);font-size:12px;font-weight:800}.table{width:100%;border-collapse:collapse}.table td,.table th{text-align:left;padding:12px 10px;border-bottom:1px solid var(--line);vertical-align:top}.muted{color:var(--muted)}.kpi{font-size:34px;font-weight:900;letter-spacing:-.04em}.timer-card{margin-bottom:16px}.timer-control{display:grid;grid-template-columns:180px 1fr 1fr;grid-gap:12px;gap:12px}.manual-time-box{margin-top:16px;border:1px solid var(--line);border-radius:18px;padding:12px 14px;background:hsla(0,0%,100%,.45)}.manual-time-box summary{cursor:pointer;font-weight:800}.time-summary{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}.time-summary span{border:1px solid var(--line);background:#fffaf1;color:var(--muted);border-radius:999px;padding:6px 10px;font-size:13px}.timeline{position:relative;display:grid;grid-gap:12px;gap:12px;margin-top:16px}.timeline:before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:var(--line)}.timeline-item{position:relative;display:grid;grid-template-columns:20px 1fr;grid-gap:12px;gap:12px}.timeline-dot{width:20px;height:20px;border-radius:999px;border:3px solid var(--card);background:var(--accent);box-shadow:0 0 0 1px var(--line);z-index:1}.timeline-body{border:1px solid var(--line);border-left:7px solid var(--accent);border-radius:18px;background:hsla(0,0%,100%,.62);padding:12px 14px}.timeline-top{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}.timeline-body p{margin:6px 0 0}.timeline-math .timeline-body,.timeline-math .timeline-dot{border-left-color:#7f5af0}.timeline-cs408 .timeline-body,.timeline-cs408 .timeline-dot{border-left-color:#2563eb}.timeline-english .timeline-body,.timeline-english .timeline-dot{border-left-color:#16a34a}.timeline-coursework .timeline-body,.timeline-coursework .timeline-dot{border-left-color:#ea580c}.timeline-experiment .timeline-body,.timeline-experiment .timeline-dot{border-left-color:#db2777}.timeline-exercise .timeline-body,.timeline-exercise 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10px;font-size:13px}.time-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:8px;gap:8px;margin-bottom:14px}.time-grid span{border:1px solid var(--line);background:var(--accent-soft);color:var(--accent);border-radius:14px;padding:8px 10px;font-size:13px;font-weight:800}.subject-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:12px;gap:12px}.subject-grid section,.tomorrow-box{border:1px solid var(--line);background:hsla(0,0%,100%,.55);border-radius:18px;padding:14px}.subject-grid b,.tomorrow-box b{display:block;margin-bottom:6px}.subject-grid p,.tomorrow-box p{margin:0;white-space:pre-wrap}.tomorrow-box{margin-top:12px}@media (max-width:760px){.grid-2,.timer-control{grid-template-columns:1fr}.nav{overflow-x:auto}.subject-grid,.time-grid{grid-template-columns:1fr}.history-card{padding:16px}}