:root{--bg: #f6f7f9;--surface: #ffffff;--border: #e3e6ea;--text: #16191d;--muted: #697180;--accent: #2f6fed;--accent-hover: #2559c9;--ok: #1a7f4b;--warn: #b7791f;--err: #c0392b;font-family:-apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Pretendard,Malgun Gothic,sans-serif;color:var(--text);background:var(--bg);-webkit-text-size-adjust:100%}@media(prefers-color-scheme:dark){:root{--bg: #14161a;--surface: #1c1f25;--border: #2b3038;--text: #e8eaed;--muted: #9aa3b0;--accent: #6b9bff;--accent-hover: #84adff;--ok: #4ade80;--warn: #fbbf24;--err: #f87171}}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg)}h1{font-size:24px;margin:0 0 4px}h2{font-size:15px;margin:0 0 14px}a{color:var(--accent)}.container{max-width:840px;margin:0 auto;padding:24px 20px 80px}.subtitle{color:var(--muted);font-size:14px;margin:0 0 24px}.nav{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.nav-inner{max-width:840px;margin:0 auto;padding:0 20px;height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px}.nav-links{display:flex;align-items:center;gap:4px}.brand{font-weight:700;margin-right:16px;white-space:nowrap}.nav-link{padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--muted);font-size:14px;font-weight:500}.nav-link:hover{background:var(--bg);color:var(--text)}.nav-link.active{color:var(--accent);font-weight:600}.nav-user{display:flex;align-items:center;gap:12px;font-size:13px}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:16px}.overtime{margin-top:10px}summary.overtime-toggle{display:inline-flex;align-items:center;gap:6px;padding:4px 6px;border-radius:6px;color:var(--muted);font-size:13px;font-weight:500;cursor:pointer;-webkit-user-select:none;user-select:none;list-style:none}summary.overtime-toggle::-webkit-details-marker{display:none}summary.overtime-toggle:before{content:"▸";font-size:11px;transition:transform 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6px;overflow:hidden;min-width:4px}.gantt-bar.work.office{background:var(--accent)}.gantt-bar.work.remote{background:#7c5cd6}.gantt-bar.work.field{background:#c77d2e}.gantt-bar.working{background:repeating-linear-gradient(45deg,var(--accent),var(--accent) 5px,color-mix(in srgb,var(--accent) 70%,transparent) 5px,color-mix(in srgb,var(--accent) 70%,transparent) 10px)}.gantt-bar.overtime-plan{top:2px;bottom:2px;background:color-mix(in srgb,var(--warn) 28%,transparent);border:1px dashed color-mix(in srgb,var(--warn) 70%,transparent)}.gantt-bar-text{font-size:11px;color:#fff;white-space:nowrap;font-variant-numeric:tabular-nums}.gantt-empty{position:absolute;left:6px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:12px}.gantt-total{width:68px;flex-shrink:0;text-align:right;color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}.gantt-legend{display:flex;flex-wrap:wrap;gap:14px;margin-top:12px;padding-top:12px;border-top:1px solid 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