/* 3minutes。白い紙に、書く欄と時計だけ（2026-11-13）。色は spaces のウェブ版から取った */
:root {
  --paper: #fff;
  --ink: #1d2328;
  --ink2: rgba(29, 35, 40, .62);
  --ink3: rgba(29, 35, 40, .48);
  --line: rgba(29, 35, 40, .12);
  --part: rgba(29, 35, 40, .05);
  --blue: #026881;   /* ブルスコブルー。カーソルと時計の線 */
  --on-blue: #fff;
  --red: #b3261e;
  --ui: system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #1C1C1F; --ink: #e8ecef; --ink2: rgba(232, 236, 239, .66); --ink3: rgba(232, 236, 239, .5);
    --line: rgba(232, 236, 239, .14); --part: rgba(232, 236, 239, .07);
    --blue: #7CC6D8; --on-blue: #0B161C; --red: #ff8a80;
    color-scheme: dark;
  }
  :root:not([data-theme="light"]) .atomo-ring { --atomo-glow: 106 168 255; }
}
:root[data-theme="dark"] {
  --paper: #1C1C1F; --ink: #e8ecef; --ink2: rgba(232, 236, 239, .66); --ink3: rgba(232, 236, 239, .5);
  --line: rgba(232, 236, 239, .14); --part: rgba(232, 236, 239, .07);
  --blue: #7CC6D8; --on-blue: #0B161C; --red: #ff8a80;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; background: var(--paper); color: var(--ink); }
body {
  font-family: var(--ui); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased;
  /* 1行40字の本文（字間0.04em）が入る幅にする */
  max-width: calc(40 * 1.04em + 32px); margin: 0 auto; padding: 0 16px;
  min-height: 100dvh; display: flex; flex-direction: column;
}
a { color: inherit; }
button { font: inherit; color: inherit; cursor: pointer; }
button:disabled { cursor: default; }

.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 20px 0 24px; }
.brand { white-space: nowrap; display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 500; }
.brand img { display: block; }
.brand .name { display: flex; flex-direction: column; line-height: 1.2; }
.brand .title { font-size: 18px; letter-spacing: .06em; }
.brand .sub { font-size: 11px; font-weight: 400; color: var(--ink3); letter-spacing: .08em; }
.me { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--ink2); min-width: 0; }
.me img { width: 24px; height: 24px; border-radius: 50%; }
.me .h { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

main { flex: 1; }
.lead { margin: 24px 0 28px; font-size: 17px; line-height: 1.8; letter-spacing: .04em; }

.primary {
  display: block; width: 100%; padding: 14px; border: none; border-radius: 999px;
  background: var(--blue); color: var(--on-blue); font-weight: 500; letter-spacing: .06em;
}
.primary:disabled { opacity: .4; }
.ghost { display: inline-block; white-space: nowrap; padding: 8px 14px; border: 1px solid var(--line); border-radius: 6px; background: transparent; color: var(--ink); text-decoration: none; }
.ghost.strong { border-color: var(--blue); color: var(--blue); }
.ghost:disabled { opacity: .4; }
.atomo { white-space: nowrap; display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border: 1px solid var(--line); border-radius: 6px; background: transparent; color: var(--ink); }
.row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.note { margin: 10px 0 0; font-size: 13px; color: var(--ink2); }
.status { margin: 8px 0 0; font-size: 14px; min-height: 1.4em; }
.status.bad { color: var(--red); }
.label { margin: 0 0 6px; font-size: 12px; color: var(--ink3); letter-spacing: .06em; }

.guest { margin-top: 14px; display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ink2); }
.guest input { flex: 1; min-width: 0; padding: 8px 10px; font: inherit; color: var(--ink); background: var(--part); border: 1px solid var(--line); border-radius: 6px; }

/* 時計。数字と、減っていく1本の線 */
.clock { padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.time { margin: 0; font-size: 44px; font-weight: 300; line-height: 1.1; font-variant-numeric: tabular-nums; letter-spacing: .02em; }
.state { margin: 4px 0 10px; font-size: 13px; color: var(--ink2); }
.bar { height: 2px; background: var(--line); border-radius: 1px; overflow: hidden; }
.bar span { display: block; height: 100%; width: 100%; background: var(--blue); transform-origin: left; }
.waiting .bar span { background: var(--ink3); }
.people { list-style: none; margin: 12px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 13px; color: var(--ink2); }
.people li { display: flex; align-items: center; gap: 6px; }
.people img, .people .face { width: 20px; height: 20px; border-radius: 50%; background: var(--part); }

.tell { margin-top: 16px; padding: 14px; border: 1px solid var(--line); border-radius: 10px; }
.tell-text { margin: 0; font: inherit; font-size: 14px; white-space: pre-wrap; word-break: break-word; color: var(--ink2); }

/* 発言。spaces の本文と同じ組み方（字間0.04em・行間1.8倍・1行40字まで） */
.log { list-style: none; margin: 0; padding: 8px 0 0; }
.log li { padding: 10px 0; }
.log .who { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink3); }
.log .who img { width: 16px; height: 16px; border-radius: 50%; }
.log .text, .page {
  font-family: var(--ui); font-size: 17px; letter-spacing: .04em; line-height: 1.8;
  max-width: calc(40 * 1.04em); white-space: pre-wrap; overflow-wrap: anywhere; line-break: strict;
}
.log .text { margin: 2px 0 0; }

/* 書く欄。押した瞬間に書く状態に入る。標準のカーソルは透かし、caret.js が描く */
.composer { position: sticky; bottom: 0; padding: 10px 0 12px; background: var(--paper); }
.card { position: relative; padding: 10px 14px; border-radius: 14px; background: var(--part); border: 1.5px solid transparent; cursor: text; }
.card.on { border-color: var(--line); }
.page { min-height: 1.8em; max-height: 9em; overflow-y: auto; outline: none; color: var(--ink); caret-color: transparent; }
.page:empty::before { content: attr(data-ph); color: var(--ink3); }
.caret { position: absolute; width: 2px; border-radius: 1px; background: var(--blue); pointer-events: none; display: none; }
.hint { margin: 6px 2px 0; font-size: 12px; color: var(--ink3); }
.joinbox { padding: 16px 0; }

.closed .lead { margin-top: 40px; }

.sheet { border: 1px solid var(--line); border-radius: 10px; background: var(--paper); color: var(--ink); padding: 24px; width: min(420px, calc(100vw - 32px)); }
.sheet::backdrop { background: rgba(0, 0, 0, .3); }
.sheet-title { margin: 0; font-weight: 500; }
.sheet input { width: 100%; margin-top: 14px; padding: 10px 12px; font: inherit; color: inherit; background: var(--part); border: 1px solid var(--line); border-radius: 6px; }

.site { padding: 32px 0 20px; }
.fine { margin: 0; font-size: 12px; color: var(--ink3); }

@media (max-width: 420px) {
  .me .h { display: none; }
  .time { font-size: 38px; }
}
@media (prefers-reduced-motion: reduce) {
  .bar span { transition: none; }
}