:root{color-scheme:light dark;--color-bg: #f7f7f5;--color-surface: #ffffff;--color-border: #dcdcd6;--color-text: #1f2320;--color-muted: #6b6f6a;--color-accent: #d98324;--color-accent-dark: #a8611a;--color-warning-bg: #fdf1e6;--color-warning-border: #e8b477;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--color-bg);color:var(--color-text)}.app{max-width:1200px;margin:0 auto;padding:24px 20px 48px}.app__header h1{margin:0 0 4px;font-size:1.75rem}.app__header p{margin:0 0 24px;color:var(--color-muted);max-width:60ch}.app__layout{display:grid;grid-template-columns:320px 1fr;gap:20px}.app__panel{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;padding:20px}.app__panel--inputs{grid-row:1 / 3}@media (max-width: 860px){.app__layout{grid-template-columns:1fr}.app__panel--inputs{grid-row:auto}}.input-form__field{margin-bottom:16px}.input-form__field label{display:block;font-weight:600;font-size:.85rem;margin-bottom:4px}.input-form__field input{width:100%;padding:8px 10px;border:1px solid var(--color-border);border-radius:8px;font-size:1rem;background:var(--color-surface);color:var(--color-text)}.input-form__field input:focus{outline:2px solid var(--color-accent);outline-offset:1px}.input-form__height-row{display:flex;gap:8px}.input-form__height-row input{flex:1;min-width:0}.input-form__unit-toggle{display:flex;flex-shrink:0;border:1px solid var(--color-border);border-radius:8px;overflow:hidden}.input-form__unit-toggle button{padding:0 12px;border:none;background:var(--color-surface);color:var(--color-text);cursor:pointer}.input-form__unit-toggle button.is-active{background:var(--color-accent);color:#fff}.input-form__error{color:#b3261e;font-size:.8rem;margin:4px 0 0}.input-form__status{min-height:1.2em;font-size:.85rem;color:var(--color-accent-dark)}.results-summary{border-top:1px solid var(--color-border);padding-top:16px;margin-top:8px}.results-summary--empty{color:var(--color-muted)}.results-summary--warning{background:var(--color-warning-bg);border:1px solid var(--color-warning-border);border-radius:8px;padding:12px}.results-summary__stats{display:grid;gap:8px;margin:0 0 12px}.results-summary__stats>div{display:flex;justify-content:space-between;gap:12px}.results-summary__stats dt{color:var(--color-muted);font-size:.85rem}.results-summary__stats dd{margin:0;font-weight:600}.results-summary__callout{background:var(--color-warning-bg);border:1px solid var(--color-warning-border);border-radius:8px;padding:12px;margin:0}.results-summary__math{margin-top:12px;font-size:.85rem}.results-summary__math summary{cursor:pointer;color:var(--color-accent-dark);font-weight:600}.results-summary__math-lines{margin-top:8px;padding:10px 12px;background:var(--color-bg);border:1px solid var(--color-border);border-radius:8px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--color-muted);display:grid;gap:4px;overflow-x:auto}.map-view svg,.shadow-diagram{width:100%;height:auto;display:block}.map-view--loading,.map-view--fallback{color:var(--color-muted);min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:4px}.map-view__state{fill:#e5e2d8;stroke:#fff;stroke-width:.5}.map-view__marker{fill:var(--color-accent);stroke:#fff;stroke-width:2}.map-view__note{color:var(--color-muted);font-size:.85rem;text-align:center}.shadow-diagram__ground{stroke:var(--color-border);stroke-width:2}.shadow-diagram__building{fill:#4a5a4a}.shadow-diagram__ray{stroke:var(--color-accent);stroke-width:2;stroke-dasharray:6 4}.shadow-diagram__shadow{stroke:var(--color-muted);stroke-width:4;stroke-linecap:round}.shadow-diagram__label{font-size:13px;fill:var(--color-text)}.shadow-diagram__angle-label{font-size:12px;fill:var(--color-accent-dark)}.shadow-diagram__note{font-size:14px;fill:var(--color-muted)}.date-slider{margin-top:16px;padding-top:16px;border-top:1px solid var(--color-border)}.date-slider__readout{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:8px;flex-wrap:wrap}.date-slider__date{font-weight:600}.date-slider__stats{color:var(--color-muted);font-size:.85rem}.date-slider__input{width:100%;accent-color:var(--color-accent)}.date-slider__ticks{display:flex;justify-content:space-between;color:var(--color-muted);font-size:.75rem;margin-top:2px}.date-slider__ticks span:nth-child(2){text-align:center}.date-slider__ticks span:last-child{text-align:right}@media (prefers-color-scheme: dark){:root{--color-bg: #14161a;--color-surface: #1c1f24;--color-border: #33383f;--color-text: #eef0ef;--color-muted: #9aa09b;--color-warning-bg: #2c2416;--color-warning-border: #6b4a1e}.map-view__state{fill:#2a2f2a}}