:root{--night-top: #16203f;--night-bottom: #05070f;--ink: #f2f4fd;--ink-soft: #b4bcdd;--gold: #ecd9a8;--line: rgba(180, 190, 230, .18);--panel: rgba(255, 255, 255, .045);--font-sans: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Noto Sans JP", system-ui, sans-serif;--font-serif: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, "Noto Serif JP", serif}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--font-sans);color:var(--ink);background:var(--night-bottom);-webkit-font-smoothing:antialiased}.app{position:relative;min-height:100%;background:radial-gradient(120% 80% at 50% -10%,#24305c,#24305c00 60%),linear-gradient(180deg,var(--night-top) 0%,var(--night-bottom) 70%);padding:max(20px,env(safe-area-inset-top)) 16px calc(28px + env(safe-area-inset-bottom));overflow:hidden}.starfield{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none}.star{position:absolute;border-radius:50%;background:#dfe6ff;animation-name:twinkle;animation-iteration-count:infinite;animation-timing-function:ease-in-out}@keyframes twinkle{0%,to{transform:scale(1);filter:brightness(1)}50%{transform:scale(1.35);filter:brightness(1.6)}}.sheet{position:relative;width:100%;max-width:560px;margin:0 auto;display:grid;gap:26px}.date-head{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap}.date-text{margin:0;font-family:var(--font-serif);font-size:clamp(1.05rem,4.4vw,1.3rem);letter-spacing:.06em;color:var(--ink)}.today-chip{font-size:.78rem;letter-spacing:.12em;padding:3px 10px;border-radius:999px;color:#1a1508;background:var(--gold)}.moon-stage{text-align:center}.moon-wrap{display:flex;justify-content:center;animation:float 14s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.moon-disc{width:min(70vw,260px);height:auto;display:block}.phase-name{margin:10px 0 0;font-family:var(--font-serif);font-size:clamp(2rem,9vw,2.7rem);font-weight:600;letter-spacing:.1em;color:#fdf8ea}.phase-note{margin:8px 0 0;font-size:clamp(.92rem,3.6vw,1rem);color:var(--ink-soft);letter-spacing:.04em}.facts{display:grid;grid-template-columns:1fr 1fr;gap:12px}.fact{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:14px 12px;display:grid;gap:4px;justify-items:center}.fact-label{font-size:.85rem;color:var(--ink-soft);letter-spacing:.08em}.fact-value{font-family:var(--font-serif);font-size:clamp(1.7rem,7vw,2.1rem);color:var(--gold);line-height:1.1}.fact-unit{font-size:.6em;margin-left:2px}.next-list{display:grid;gap:10px}.next-row{display:grid;grid-template-columns:auto 1fr auto;align-items:baseline;gap:12px;padding:12px 16px;background:var(--panel);border:1px solid var(--line);border-radius:16px}.next-label{font-size:.92rem;color:var(--ink-soft);letter-spacing:.06em}.next-date{font-family:var(--font-serif);font-size:1.25rem;color:var(--ink)}.next-count{font-size:1rem;color:var(--gold);letter-spacing:.04em;white-space:nowrap}.controls{display:grid;gap:12px;justify-items:center}.day-buttons{display:flex;gap:10px;width:100%}.day-buttons button{flex:1;min-height:48px;padding:0 8px;font-family:inherit;font-size:1rem;letter-spacing:.06em;color:var(--ink);background:#ffffff12;border:1px solid var(--line);border-radius:14px;cursor:pointer;transition:background .2s ease}.day-buttons button:hover:not(:disabled){background:#ffffff24}.day-buttons button:disabled{opacity:.4;cursor:default}.today-button{flex:0 0 84px}.date-picker{display:flex;align-items:center;gap:10px;font-size:.9rem;color:var(--ink-soft)}.date-picker input{font-family:inherit;font-size:1rem;color:var(--ink);background:#ffffff12;border:1px solid var(--line);border-radius:12px;padding:9px 12px;color-scheme:dark}:focus-visible{outline:2px solid var(--gold);outline-offset:2px}.diagram{border-top:1px solid var(--line);padding-top:22px;text-align:center}.diagram-title{margin:0 0 6px;font-family:var(--font-serif);font-size:1.05rem;font-weight:500;letter-spacing:.16em;color:var(--ink-soft)}.sky-diagram{width:100%;height:auto;max-width:460px}.diagram-note{margin:4px auto 0;max-width:34em;font-size:.86rem;line-height:1.8;color:var(--ink-soft)}.foot{text-align:center}.foot p{margin:0;font-size:.78rem;line-height:1.8;color:#97a0c4}@media (min-width: 880px){.app{display:flex;align-items:center;padding-top:40px;padding-bottom:40px}.sheet{max-width:980px;gap:22px;grid-template-columns:1fr 1fr;column-gap:48px;align-items:start;grid-template-areas:"head head" "moon facts" "moon next" "moon controls" "diagram diagram" "foot foot"}.date-head{grid-area:head}.moon-stage{grid-area:moon;align-self:center}.facts{grid-area:facts}.next-list{grid-area:next}.controls{grid-area:controls}.diagram{grid-area:diagram}.foot{grid-area:foot}.moon-disc{width:min(38vw,320px)}}@media (prefers-reduced-motion: reduce){.star,.moon-wrap{animation:none!important}}