/* StopWatch 送信ページ。スマホの幅を基準に、ライト・ダーク両対応。 */

:root {
  color-scheme: light dark;
  --bg: #f3f5f8;
  --panel: #ffffff;
  --panel-2: #eceff4;
  --text: #151a21;
  --dim: #566274;
  --border: #d5dce5;
  --accent: #1a6fe0;
  --accent-text: #ffffff;
  --danger: #c5221f;
  --danger-bg: #fdeceb;
  --ok: #187a37;
  --warn-bg: #fff3d1;
  --warn-border: #ecc866;
  --warn-text: #5a4200;
  --shadow: 0 -4px 18px rgba(20, 30, 50, 0.12);
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171c;
    --panel: #1e232b;
    --panel-2: #272d37;
    --text: #eef1f5;
    --dim: #9aa4b2;
    --border: #353c48;
    --accent: #4da3ff;
    --accent-text: #04121f;
    --danger: #ff7b78;
    --danger-bg: #3a1c1c;
    --ok: #4fd18b;
    --warn-bg: #3a2f0d;
    --warn-border: #6b5714;
    --warn-text: #ffd980;
    --shadow: 0 -4px 18px rgba(0, 0, 0, 0.45);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", "Segoe UI", sans-serif;
}

.hidden { display: none !important; }

.app {
  max-width: 520px;
  margin: 0 auto;
  padding: 16px 16px calc(168px + env(safe-area-inset-bottom, 0px));
}

/* --- 見出しと接続の状態 --- */
header { margin-bottom: 14px; }
h1 { font-size: 22px; line-height: 1.3; margin: 4px 0 6px; font-weight: 700; }
.link-state {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  font-size: 14px; color: var(--dim);
}
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--dim); flex: none; }
.link-state[data-state="connected"] .dot { background: var(--ok); }
.link-state[data-state="busy"] .dot { background: #e0a100; animation: pulse 1.1s ease-in-out infinite; }
.link-state[data-state="lost"] .dot { background: var(--danger); }
@keyframes pulse { 50% { opacity: 0.35; } }
@media (prefers-reduced-motion: reduce) { .link-state[data-state="busy"] .dot { animation: none; } }

.linklink {
  border: 0; background: none; padding: 4px 0; margin: 0;
  color: var(--accent); font: inherit; font-size: 14px; text-decoration: underline; cursor: pointer;
}

/* --- お知らせ --- */
.banner {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 14px; margin-bottom: 14px; font-size: 15px;
}
.banner-warn { background: var(--warn-bg); border-color: var(--warn-border); color: var(--warn-text); }
.banner-err { background: var(--danger-bg); border-color: var(--danger); color: var(--text); }
.banner-ok { border-color: var(--ok); }
.banner .title { font-weight: 700; }
.banner .hint { margin-top: 2px; }
.banner .actions { margin-top: 8px; display: flex; gap: 10px; flex-wrap: wrap; }

/* --- カード --- */
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; margin-bottom: 14px;
}
.hint { margin: 8px 0 0; font-size: 14px; color: var(--dim); }

/* --- ボタン --- */
.btn {
  appearance: none; display: inline-flex; align-items: center; justify-content: center;
  min-height: 46px; padding: 0 18px; border-radius: 12px; cursor: pointer;
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  font: inherit; font-size: 16px; font-weight: 600;
}
.btn:disabled { opacity: 0.45; cursor: default; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn-danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.btn-big { width: 100%; min-height: 56px; font-size: 18px; }
.btn-small {
  appearance: none; min-height: 36px; padding: 0 12px; border-radius: 10px; cursor: pointer;
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text); font: inherit; font-size: 14px;
}
.btn:focus-visible, .btn-small:focus-visible, .linklink:focus-visible, .seg button:focus-visible, summary:focus-visible, input:focus-visible {
  outline: 3px solid var(--accent); outline-offset: 2px;
}

/* --- 一覧 --- */
.list-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.list-head h2 { font-size: 15px; margin: 0; color: var(--dim); font-weight: 700; }
ul.items { list-style: none; margin: 0; padding: 0; }
.item {
  display: grid; grid-template-columns: 64px 1fr; gap: 12px; align-items: start;
  padding: 12px 0; border-top: 1px solid var(--border);
}
.item:first-child { border-top: 0; }

/* 本体の丸画面と同じ形で見せる（静止画は円で切れ、GIF は円に内接する枠で出る） */
.thumb {
  position: relative; width: 64px; height: 64px; border-radius: 50%; overflow: hidden;
  background: #000; border: 1px solid var(--border);
}
.thumb img { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); display: block; }
.thumb .ph { position: absolute; inset: 0; display: grid; place-items: center; color: #9aa4b2; font-size: 11px; }

.meta { min-width: 0; }
.name { font-size: 15px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.detail { font-size: 13px; color: var(--dim); }
.detail .src { display: block; }
.state { font-size: 14px; margin-top: 2px; }
.state[data-kind="ok"] { color: var(--ok); }
.state[data-kind="err"] { color: var(--danger); }
.state[data-kind="busy"] { color: var(--text); }
.state[data-kind="dim"] { color: var(--dim); }
.state .hint2 { display: block; color: var(--dim); font-size: 13px; }
.bar { height: 6px; border-radius: 3px; background: var(--panel-2); overflow: hidden; margin-top: 6px; }
.bar .fill { height: 100%; width: 0; background: var(--accent); transition: width 0.15s linear; }
.item-actions { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }

/* --- 設定 --- */
details.card > summary { cursor: pointer; font-weight: 700; list-style-position: inside; min-height: 28px; }
.setting { margin-top: 14px; }
.setting .label { font-size: 14px; color: var(--dim); margin-bottom: 6px; }
.seg { display: flex; flex-wrap: wrap; gap: 8px; }
.seg button {
  appearance: none; min-height: 40px; padding: 0 14px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text); font: inherit; font-size: 15px;
}
.seg button[aria-checked="true"] { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 700; }
.note { font-size: 13px; color: var(--dim); margin: 6px 0 0; }

/* --- ログ --- */
pre#logText {
  margin: 10px 0 0; padding: 10px; max-height: 260px; overflow: auto; border-radius: 10px;
  background: var(--panel-2); font: 12px/1.45 ui-monospace, Menlo, Consolas, monospace; white-space: pre-wrap; word-break: break-all;
}

footer { text-align: center; color: var(--dim); font-size: 12px; margin-top: 18px; }

/* --- 下に固定する転送バー --- */
.sendbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 20;
  background: var(--panel); border-top: 1px solid var(--border); box-shadow: var(--shadow);
  padding: 10px 16px calc(12px + env(safe-area-inset-bottom, 0px));
}
.sendbar-inner { max-width: 520px; margin: 0 auto; }
.summary { font-size: 14px; color: var(--dim); min-height: 22px; margin-bottom: 8px; }
.summary strong { color: var(--text); }
.sendbar .bar { margin: 0 0 10px; height: 8px; }
.sendbar-actions { display: flex; gap: 10px; }
.sendbar-actions .btn { flex: 1; min-height: 52px; font-size: 18px; }

/* --- 4 桁の入力 --- */
dialog {
  width: min(92vw, 420px); border: 1px solid var(--border); border-radius: 18px; padding: 20px;
  background: var(--panel); color: var(--text);
}
dialog::backdrop { background: rgba(0, 0, 0, 0.55); }
dialog h2 { margin: 0 0 6px; font-size: 20px; }
dialog p { margin: 6px 0; }
#pinInput {
  width: 100%; margin: 10px 0 4px; padding: 10px; text-align: center; letter-spacing: 0.5em;
  font: 700 34px/1.2 ui-monospace, Menlo, Consolas, monospace;
  background: var(--panel-2); color: var(--text); border: 1px solid var(--border); border-radius: 12px;
}
.pin-msg { min-height: 24px; color: var(--danger); font-weight: 600; }
.pin-timer { min-height: 22px; font-size: 14px; color: var(--dim); }
.dialog-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.dialog-actions .btn { flex: 1 1 auto; min-width: 96px; }