:root{
  --ink:#1B2733; --ink-soft:#4B5B68; --paper:#DDE9E6; --paper-deep:#C6D8D4;
  --card:#F7F8F5; --curtain:#8C2233; --brass:#B58A2E; --line:#9DB5AF;
  --serif:"Shippori Mincho","Yu Mincho",serif;
  --sans:"Zen Kaku Gothic New","Yu Gothic",sans-serif;
}
*{box-sizing:border-box}
html{font-size:16px}
body{margin:0;background:var(--paper);color:var(--ink);font:400 .95rem/1.7 var(--sans)}
button,select,input,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--brass);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}
[hidden]{display:none!important}

/* ヘッダー */
.top{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem 1.5rem;padding:1rem 1.25rem;background:var(--ink);color:var(--card)}
.brand{font:800 1.35rem/1.2 var(--serif);letter-spacing:.06em;margin-right:auto}
.brand small{display:block;font:400 .75rem var(--sans);letter-spacing:.04em;color:#B9C7CF}
.tabs{display:flex;gap:.25rem}
.tabs button{background:none;border:0;color:#B9C7CF;padding:.5rem .9rem;border-bottom:3px solid transparent;cursor:pointer;font-weight:500}
.tabs button[aria-selected=true]{color:var(--card);border-bottom-color:var(--brass)}
.refresh{display:flex;flex-wrap:wrap;align-items:center;gap:.6rem .9rem;font-size:.8rem;color:#B9C7CF}
.logout{color:#B9C7CF}
.btn{background:var(--brass);color:var(--ink);border:0;padding:.5rem 1rem;font-weight:700;cursor:pointer}
.btn:hover{filter:brightness(1.08)}
.btn[disabled]{opacity:.75;cursor:progress}
.btn.ghost{background:none;border:1px solid var(--line);color:var(--ink);font-weight:500}
.btn.ghost-on-dark{background:none;border:1px solid #6B7B88;color:var(--card);font-weight:500}
.banner{background:#F4E4E6;color:var(--curtain);border-bottom:3px solid var(--curtain);padding:.6rem 1.25rem;font-weight:500}

main{max-width:1400px;margin:0 auto;padding:1.25rem}
.viewhead{display:flex;flex-wrap:wrap;align-items:baseline;gap:.5rem 1rem;margin-bottom:1rem}
h1{font:800 1.6rem/1.3 var(--serif);margin:0;letter-spacing:.04em}
.viewhead p{margin:0;color:var(--ink-soft)}
.filters{display:flex;flex-wrap:wrap;gap:.5rem;margin-left:auto;align-items:center}
.filters label{font-size:.85rem;color:var(--ink-soft)}
.filters select{background:var(--card);border:1px solid var(--line);padding:.3rem .5rem}
.weeknav{display:flex;align-items:center;gap:.5rem}
.empty-note{background:var(--card);border:1px dashed var(--line);padding:1rem;margin-bottom:1rem}

/* タグ */
.scale{display:inline-block;font-size:.72rem;line-height:1;padding:.2rem .4rem;border:1px solid var(--ink-soft);white-space:nowrap}
.scale.l{background:var(--ink);color:var(--card);border-color:var(--ink)}
.scale.m{border-width:2px}
.scale.s{border-style:dashed}
.st{display:inline-block;font-size:.72rem;line-height:1;padding:.2rem .45rem;border-radius:2px}
.st.s-決定{background:var(--curtain);color:#fff}
.st.s-有力{border:1.5px solid var(--curtain);color:var(--curtain);font-weight:700}
.st.s-保留{border:1.5px dashed var(--brass);color:#7A5A12}
.st.s-見送り{color:var(--ink-soft);text-decoration:line-through}
.chg{display:inline-block;font-size:.72rem;line-height:1;padding:.2rem .4rem;background:var(--brass);color:var(--ink);font-weight:700}

/* ポスター: 検討が進むほど大きく(カレンダー=小 → 今週=中 → 候補ボード=大) */
.poster{flex:none;aspect-ratio:2/3;display:grid;place-items:center;overflow:hidden;color:#fff;font-family:var(--serif);font-weight:800;writing-mode:vertical-rl;letter-spacing:.1em}
.poster img{width:100%;height:100%;object-fit:cover;display:block}
.poster.p-s{width:2.2rem;font-size:.8rem}
.poster.p-m{width:4.5rem;font-size:1.2rem}
.poster.p-l{width:7rem;font-size:1.7rem}

/* カレンダー */
.cal{background:var(--card);border:1px solid var(--line)}
.cal-grid{display:grid;grid-template-columns:5.2rem repeat(4,minmax(0,1fr)) minmax(0,2.6fr) repeat(2,minmax(0,1fr))}
.cal-grid>div{border-bottom:1px solid var(--line);border-right:1px solid var(--line);padding:.35rem .4rem;min-width:0}
.cal-grid>div:nth-child(8n){border-right:0}
.dow{background:var(--ink);color:var(--card);font-weight:500;font-size:.8rem;text-align:center;padding:.5rem .3rem!important}
.dow.fri{background:var(--curtain);font:800 1rem var(--serif);letter-spacing:.2em}
.wk{background:var(--paper-deep);font-size:.78rem;line-height:1.35;color:var(--ink-soft)}
.wk b{display:block;font:700 .95rem var(--sans);color:var(--ink)}
.wk.now{background:var(--brass);color:var(--ink)}
.day{min-height:5.2rem;position:relative}
.day.fri{background:#EFF3EC}
.day .d{font-size:.75rem;color:var(--ink-soft)}
.day.fri .d{font-weight:700;color:var(--curtain)}
.day.today{box-shadow:inset 0 0 0 2px var(--brass)}
.air{margin-top:.2rem;font-size:.72rem;color:#6B4E0E;border-top:1px dashed var(--brass);padding-top:.15rem}
.chip{display:flex;gap:.45rem;align-items:flex-start;width:100%;text-align:left;background:var(--card);border:1px solid var(--line);border-left:4px solid var(--ink);padding:.25rem .4rem;margin-top:.25rem;cursor:pointer}
.day.fri .chip{border-left-color:var(--curtain);padding:.4rem .55rem}
.chip:hover{border-color:var(--ink)}
.chip .body{min-width:0;flex:1}
.chip .t{font:700 .85rem/1.35 var(--serif);display:block}
.day.fri .chip .t{font-size:.98rem}
.chip .m{display:flex;flex-wrap:wrap;gap:.25rem;margin-top:.2rem}
.chip.s-見送り .t{color:var(--ink-soft);text-decoration:line-through}
.chip.s-決定{background:#F4E4E6}

/* 今週: 比較表 */
.wtable-wrap{overflow-x:auto;background:var(--card);border:1px solid var(--line)}
table.cmp{border-collapse:separate;border-spacing:0;width:100%;min-width:1000px}
.cmp th{background:var(--ink);color:var(--card);font-weight:500;font-size:.8rem;text-align:left;padding:.5rem .6rem;white-space:nowrap}
.cmp th button{background:none;border:0;color:inherit;cursor:pointer;padding:0;font-weight:500}
.cmp td{padding:.7rem .6rem;vertical-align:top;border-bottom:1px solid var(--line)}
.cmp tr.stub td{border-bottom:2px dashed var(--line)}
.cmp td:first-child,.cmp th:first-child{position:sticky;left:0;z-index:1;background:var(--card)}
.cmp th:first-child{background:var(--ink)}
.cmp td:first-child{border-right:1px solid var(--line);min-width:15rem}
.ttl{display:flex;gap:.7rem}
.ttl h3{margin:0;font:700 1.02rem/1.35 var(--serif)}
.ttl h3 button{all:unset;cursor:pointer;border-bottom:1px solid transparent}
.ttl h3 button:hover,.ttl h3 button:focus-visible{border-bottom-color:var(--curtain)}
.ttl .o{font-size:.75rem;color:var(--ink-soft)}
.pop{display:flex;align-items:center;gap:.4rem;font-size:.8rem}
.bar{width:3.5rem;height:.5rem;background:var(--paper-deep)}
.bar i{display:block;height:100%;background:var(--ink)}
.cmp select{background:var(--paper);border:1px solid var(--line);padding:.2rem .3rem;max-width:8rem}
.cmp textarea{width:12rem;min-height:3.2rem;background:var(--paper);border:1px solid var(--line);padding:.3rem;resize:vertical}
.day-sep td{background:var(--paper-deep);font:700 .85rem var(--sans);padding:.35rem .6rem;border-bottom:1px solid var(--line)}
.day-sep.fri td{background:var(--curtain);color:#fff;font:800 .95rem var(--serif);letter-spacing:.1em}
.prevdate{display:block;font-size:.75rem;color:#7A5A12}

/* 候補ボード */
.board{display:grid;grid-template-columns:repeat(auto-fit,minmax(19rem,1fr));gap:1rem;align-items:start}
.col{background:var(--card);border:1px solid var(--line)}
.col h2{margin:0;padding:.6rem .8rem;font:800 1.05rem var(--serif);background:var(--ink);color:var(--card);display:flex;justify-content:space-between}
.col.c-決定 h2{background:var(--curtain)}
.col ul{list-style:none;margin:0;padding:.4rem}
.col li{margin:.4rem 0}
.col .empty{padding:.8rem;color:var(--ink-soft);font-size:.85rem}
.bcard{width:100%;text-align:left;background:var(--paper);border:1px solid var(--line);padding:.6rem;cursor:pointer;display:flex;gap:.75rem;align-items:flex-start}
.bcard .body{min-width:0;flex:1}
.bcard .t{font:700 1.02rem/1.35 var(--serif);display:block;margin-bottom:.2rem}
.bcard .m{font-size:.8rem;color:var(--ink-soft);display:block;margin-bottom:.3rem}
.slots{margin-bottom:1rem;display:flex;flex-wrap:wrap;gap:.5rem}
.slot{background:var(--card);border:1px solid var(--line);border-top:4px solid var(--brass);padding:.4rem .7rem;font-size:.85rem;min-width:12rem}
.slot b{font-family:var(--serif)}

/* ドロワー */
.scrim{position:fixed;inset:0;background:rgba(27,39,51,.45)}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(30rem,100%);background:var(--card);overflow:auto;padding:1.25rem;border-left:4px solid var(--curtain);animation:slide .22s ease-out}
@keyframes slide{from{transform:translateX(2rem);opacity:0}to{transform:none;opacity:1}}
.drawer h2{font:800 1.4rem/1.35 var(--serif);margin:.25rem 2rem .1rem 0}
.drawer .o{color:var(--ink-soft);font-size:.85rem;margin:0 0 1rem}
.drawer .head{display:flex;gap:1rem;margin-bottom:1rem}
.drawer .head h2{margin-right:0}
.drawer dl{display:grid;grid-template-columns:5.5rem 1fr;gap:.35rem .75rem;margin:0 0 1rem}
.drawer dt{color:var(--ink-soft);font-size:.82rem}
.drawer dd{margin:0}
.drawer .close{position:absolute;top:.6rem;right:.6rem}
.drawer fieldset{border:1px solid var(--line);padding:.7rem;margin:0 0 1rem}
.drawer legend{font-weight:700;padding:0 .3rem}
.drawer label{display:block;margin:.4rem 0 .1rem;font-size:.85rem;color:var(--ink-soft)}
.drawer select,.drawer input,.drawer textarea{width:100%;background:var(--paper);border:1px solid var(--line);padding:.4rem}
.drawer .hint{font-size:.8rem;color:var(--ink-soft);margin:.3rem 0 0}
.drawer .row{display:flex;gap:.5rem;align-items:center;margin-top:.5rem}
.drawer .row .btn{white-space:nowrap}
.overview{font-size:.88rem;color:var(--ink-soft)}
.drawer a{color:var(--curtain)}

.toast{position:fixed;left:50%;bottom:1.2rem;transform:translateX(-50%);background:var(--ink);color:var(--card);padding:.6rem 1.1rem;border-left:4px solid var(--brass);max-width:90vw}
.note{margin-top:1.5rem;font-size:.8rem;color:var(--ink-soft)}

/* ログイン */
.auth-body{display:grid;place-items:center;min-height:100vh;padding:1rem}
.auth-card{width:min(24rem,100%);background:var(--card);border:1px solid var(--line);border-top:6px solid var(--curtain);padding:1.5rem}
.auth-card h1{font-size:1.5rem}
.auth-desc{color:var(--ink-soft);margin:.4rem 0 1rem}
.auth-card label{display:block;margin:.8rem 0 .2rem;font-size:.85rem;color:var(--ink-soft)}
.auth-card input{width:100%;background:var(--paper);border:1px solid var(--line);padding:.5rem}
.auth-card .btn{margin-top:1.2rem;width:100%}
.auth-error{background:#F4E4E6;color:var(--curtain);padding:.5rem .7rem;border-left:4px solid var(--curtain);margin:0 0 .5rem}

/* モバイル */
@media (max-width:820px){
  main{padding:.75rem}
  .cal-grid{display:block}
  .cal-grid>div{border-right:0}
  .dow{display:none}
  .wk{display:flex;gap:.5rem;align-items:baseline;font-weight:700;color:var(--ink)}
  .wk b{display:inline}
  .day{min-height:0}
  .day.empty-day{display:none}
  .day .d::before{content:attr(data-label)}
}
@media (prefers-reduced-motion:reduce){.drawer{animation:none}}