:root{--font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, "Liberation Mono", monospace;--bg: #f7f3ea;--bg-panel: #fffdf8;--ink: #1f2340;--ink-soft: #4a4f6b;--ink-faint: #7d8199;--accent: #c19a3e;--accent-strong: #a67c1f;--line: #e4dcc9;--line-strong: #d3c8ad;--shadow: 0 1px 2px rgba(31, 35, 64, .05), 0 8px 24px rgba(31, 35, 64, .06);--focus: #6a72c9}@media (prefers-color-scheme: dark){:root{--bg: #16181f;--bg-panel: #1e212b;--ink: #eceadf;--ink-soft: #b6b8c6;--ink-faint: #8a8d9e;--accent: #e0b85a;--accent-strong: #efc96f;--line: #2c303c;--line-strong: #3a3f4e;--shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px rgba(0, 0, 0, .35);--focus: #9aa2ef}}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-sans);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}#root{max-width:720px;margin:0 auto;padding:2rem 1.25rem 3rem;display:flex;flex-direction:column;min-height:100vh}.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}.serif{font-family:var(--font-serif)}.site-header{text-align:center;margin-bottom:2rem}.sun-motif{color:var(--accent);display:flex;justify-content:center;margin-bottom:-.35rem}.site-title{font-size:clamp(1.9rem,6vw,2.7rem);font-weight:600;letter-spacing:-.01em;margin:.25rem 0 .35rem;color:var(--ink)}.site-tagline{margin:0 auto;max-width:30rem;color:var(--ink-soft);font-size:1rem}.converter{display:flex;flex-direction:column;gap:.75rem;align-items:stretch}.panel{background:var(--bg-panel);border:1px solid var(--line);border-radius:16px;padding:1.25rem 1.25rem 1.1rem;box-shadow:var(--shadow)}.panel__title{font-family:var(--font-sans);font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--ink);margin:0 0 .9rem;display:flex;align-items:baseline;gap:.5rem}.panel__subtitle{font-weight:500;text-transform:none;letter-spacing:0;color:var(--accent-strong);font-size:.78rem}.fields{display:flex;gap:.6rem;flex-wrap:wrap}.field{display:flex;flex-direction:column;gap:.3rem;flex:1 1 4.5rem;min-width:0}.field--month{flex:2 1 8rem}.field--full{flex:1 1 100%}.field__label{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint)}.field__control{-moz-appearance:none;appearance:none;-webkit-appearance:none;width:100%;font-size:1.05rem;font-family:var(--font-sans);color:var(--ink);background:var(--bg);border:1px solid var(--line-strong);border-radius:10px;padding:.6rem .7rem;line-height:1.2}select.field__control{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='none' stroke='%23a67c1f' stroke-width='1.6' stroke-linecap='round'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .7rem center;background-size:.7rem;padding-right:1.9rem;cursor:pointer}.field__control:focus-visible{outline:2px solid var(--focus);outline-offset:1px;border-color:var(--focus)}input[type=date].field__control{min-height:2.6rem}input[type=date]::-webkit-calendar-picker-indicator{filter:grayscale(1);opacity:.6;cursor:pointer}@media (prefers-color-scheme: dark){input[type=date]::-webkit-calendar-picker-indicator{filter:invert(1) grayscale(1) brightness(1.4);opacity:.75}}.panel__result{margin:.9rem 0 0;font-size:clamp(1.4rem,5vw,1.85rem);font-weight:600;color:var(--ink);letter-spacing:-.01em}.swap{align-self:center;display:inline-flex;align-items:center;justify-content:center;width:2.7rem;height:2.7rem;margin:-.15rem 0;border-radius:999px;border:1px solid var(--line-strong);background:var(--bg-panel);color:var(--accent-strong);box-shadow:var(--shadow);cursor:pointer;transition:transform .12s ease,border-color .12s ease;z-index:1}.swap:hover{border-color:var(--accent)}.swap:active{transform:scale(.94)}.swap:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.weekday{text-align:center;margin:1.5rem 0 0;color:var(--ink-soft)}.weekday__label{font-size:.9rem}.weekday strong{color:var(--accent-strong);font-size:1.15rem;font-weight:600}.explainer{margin-top:2.5rem;padding-top:1.75rem;border-top:1px solid var(--line)}.explainer__title{font-size:1.25rem;font-weight:600;margin:0 0 .6rem;color:var(--ink)}.explainer p{margin:0;color:var(--ink-soft);font-size:.98rem;line-height:1.7}.site-footer{margin-top:auto;padding-top:2.5rem;text-align:center}.site-footer p{margin:0;color:var(--ink-faint);font-size:.85rem;max-width:32rem;margin-inline:auto}@media (min-width: 600px){#root{padding-top:3rem}.panel{padding:1.5rem 1.5rem 1.3rem}}