/* 暮らしLABO 複数ストップウォッチ */
#multi-stopwatch-tool {
  --mst-bg: #faf8f3;
  --mst-card: #fff;
  --mst-text: #303d3a;
  --mst-muted: #66736f;
  --mst-border: #e0e6df;
  --mst-accent: #386e5c;
  --mst-soft: #edf4ec;
  --mst-running: #f3f8ef;
  --mst-danger: #a4453d;
  --mst-shadow: 0 4px 20px #334b3d06;
  color-scheme: light;
  box-sizing: border-box;
  background: var(--mst-bg);
  color: var(--mst-text);
  max-width: 960px;
  margin: 24px auto;
  padding: 40px;
  border-radius: 24px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Yu Gothic", Meiryo, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  isolation: isolate;
  text-align: left;
}

#multi-stopwatch-tool[data-theme="dark"] {
  --mst-bg: #1c211f;
  --mst-card: #282e2b;
  --mst-text: #edf3ee;
  --mst-muted: #b5c1b9;
  --mst-border: #465149;
  --mst-accent: #a8d4b8;
  --mst-soft: #313f36;
  --mst-running: #2c392f;
  --mst-danger: #f0afa6;
  --mst-shadow: none;
  color-scheme: dark;
}

#multi-stopwatch-tool *,
#multi-stopwatch-tool *::before,
#multi-stopwatch-tool *::after { box-sizing: border-box; }

#multi-stopwatch-tool [hidden] { display: none !important; }

#multi-stopwatch-tool h1,
#multi-stopwatch-tool h2,
#multi-stopwatch-tool p {
  margin: 0;
  padding: 0;
  background: none;
  border: 0;
  color: inherit;
}

#multi-stopwatch-tool h1::before,
#multi-stopwatch-tool h1::after,
#multi-stopwatch-tool h2::before,
#multi-stopwatch-tool h2::after { content: none; }

#multi-stopwatch-tool button,
#multi-stopwatch-tool input,
#multi-stopwatch-tool textarea {
  font: inherit;
  color: inherit;
  margin: 0;
  box-shadow: none;
  max-width: 100%;
}

#multi-stopwatch-tool button {
  appearance: none;
  cursor: pointer;
  min-height: 44px;
  border: 1px solid var(--mst-border);
  border-radius: 10px;
  padding: 9px 16px;
  background: var(--mst-card);
  line-height: 1.4;
  transition: background .15s, border-color .15s;
}

#multi-stopwatch-tool button:hover {
  border-color: var(--mst-accent);
  background: var(--mst-soft);
}

#multi-stopwatch-tool button:disabled { opacity: .5; cursor: not-allowed; }
#multi-stopwatch-tool :focus-visible { outline: 3px solid var(--mst-accent); outline-offset: 3px; }

#multi-stopwatch-tool .mst-header {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  justify-content: space-between;
  margin-bottom: 24px;
}

#multi-stopwatch-tool .mst-brand {
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--mst-accent);
  font-size: 13px;
  margin-bottom: 12px;
}

#multi-stopwatch-tool .mst-brand span {
  font-weight: 400;
  color: var(--mst-muted);
  letter-spacing: 0;
}

#multi-stopwatch-tool #mst-title {
  font-size: clamp(23px, 4vw, 32px);
  font-weight: 700;
  line-height: 1.4;
}

#multi-stopwatch-tool .mst-lead { color: var(--mst-muted); font-size: 14px; margin-top: 12px; }
#multi-stopwatch-tool .mst-theme { white-space: nowrap; font-size: 13px; }

#multi-stopwatch-tool .mst-guide {
  display: flex;
  gap: 12px;
  padding: 16px 20px;
  border-radius: 12px;
  background: var(--mst-soft);
  font-size: 14px;
  align-items: center;
}

#multi-stopwatch-tool .mst-guide-icon { font-size: 26px; color: var(--mst-accent); }
#multi-stopwatch-tool .mst-save-note { font-size: 12px; color: var(--mst-muted); margin: 12px 0 28px; }

#multi-stopwatch-tool .mst-warning {
  padding: 12px;
  border: 1px solid var(--mst-danger);
  color: var(--mst-danger);
  border-radius: 10px;
  margin-bottom: 16px;
  font-size: 13px;
  overflow-wrap: anywhere;
}

#multi-stopwatch-tool .mst-overview {
  display: flex;
  gap: 12px;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 12px;
}

#multi-stopwatch-tool .mst-overview h2 { font-size: 16px; font-weight: 700; }
#multi-stopwatch-tool .mst-overview p { font-size: 12px; color: var(--mst-muted); }
#multi-stopwatch-tool .mst-divider { padding: 0 8px; }
#multi-stopwatch-tool .mst-list { display: grid; gap: 14px; }

#multi-stopwatch-tool .mst-card {
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--mst-border);
  border-radius: 16px;
  background: var(--mst-card);
  box-shadow: var(--mst-shadow);
}

#multi-stopwatch-tool .mst-card[data-running="true"] {
  background: var(--mst-running);
  border-color: var(--mst-accent);
  box-shadow: inset 4px 0 var(--mst-accent);
}

#multi-stopwatch-tool .mst-card-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 15px;
}

#multi-stopwatch-tool .mst-number { color: var(--mst-muted); font-size: 12px; font-weight: 700; }

#multi-stopwatch-tool .mst-name {
  min-width: 0;
  flex: 1;
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--mst-border);
  border-radius: 8px;
  background: var(--mst-card);
  min-height: 44px;
}

#multi-stopwatch-tool .mst-name::placeholder { color: var(--mst-muted); opacity: 1; }
#multi-stopwatch-tool .mst-status { font-size: 12px; white-space: nowrap; color: var(--mst-muted); }
#multi-stopwatch-tool .mst-card[data-running="true"] .mst-status { color: var(--mst-accent); font-weight: 700; }

#multi-stopwatch-tool .mst-card-main {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

#multi-stopwatch-tool .mst-time {
  display: block;
  font-family: Arial, "Helvetica Neue", sans-serif;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "zero" 0;
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 600;
  letter-spacing: .025em;
  line-height: 1.4;
  overflow-wrap: anywhere;
  max-width: 100%;
}

#multi-stopwatch-tool .mst-controls { display: flex; flex-wrap: wrap; gap: 8px; }

#multi-stopwatch-tool .mst-primary {
  background: var(--mst-accent);
  color: var(--mst-card);
  border-color: var(--mst-accent);
  min-width: 88px;
  font-weight: 700;
}

#multi-stopwatch-tool .mst-primary:hover { background: var(--mst-accent); filter: brightness(.95); }

#multi-stopwatch-tool .mst-card[data-running="true"] .mst-toggle {
  background: var(--mst-text);
  border-color: var(--mst-text);
  color: var(--mst-card);
}

#multi-stopwatch-tool .mst-danger { color: var(--mst-danger); }

/* hiddenが外れたときだけメモ欄を表示 */
#multi-stopwatch-tool .mst-note:not([hidden]) {
  display: block;
  border-top: 1px solid var(--mst-border);
  padding-top: 16px;
  margin-top: 18px;
}

#multi-stopwatch-tool .mst-note label {
  display: block;
  font-size: 13px;
  margin-bottom: 6px;
}

#multi-stopwatch-tool .mst-note textarea {
  display: block;
  width: 100%;
  min-height: 100px;
  resize: vertical;
  border: 1px solid var(--mst-border);
  border-radius: 8px;
  background: var(--mst-card);
  padding: 12px;
}

#multi-stopwatch-tool .mst-note-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

#multi-stopwatch-tool .mst-note-actions button { font-size: 13px; }

#multi-stopwatch-tool .mst-add {
  display: block;
  width: 100%;
  margin-top: 20px;
  border-style: dashed;
  color: var(--mst-accent);
  font-weight: 700;
  padding: 15px;
}

#multi-stopwatch-tool .mst-limit { text-align: center; font-size: 12px; color: var(--mst-muted); margin-top: 8px; }
#multi-stopwatch-tool .mst-footer { border-top: 1px solid var(--mst-border); margin-top: 30px; padding-top: 24px; }
#multi-stopwatch-tool .mst-bulk { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
#multi-stopwatch-tool .mst-bulk button { font-size: 13px; }
#multi-stopwatch-tool .mst-help { margin-top: 24px; color: var(--mst-muted); font-size: 13px; }
#multi-stopwatch-tool .mst-help summary { cursor: pointer; min-height: 44px; padding: 10px 0; }
#multi-stopwatch-tool .mst-help p { margin: 10px 0; }
#multi-stopwatch-tool .mst-local { text-align: center; font-size: 12px; color: var(--mst-muted); margin-top: 20px; }

#multi-stopwatch-tool .mst-feedback {
  min-height: 24px;
  font-size: 13px;
  color: var(--mst-accent);
  text-align: center;
  margin-top: 12px;
}

#multi-stopwatch-tool .mst-dialog {
  position: fixed;
  inset: 0;
  margin: auto;
  color: var(--mst-text);
  background: var(--mst-card);
  border: 1px solid var(--mst-border);
  border-radius: 16px;
  padding: 28px;
  width: min(420px, calc(100% - 32px));
  max-height: 90vh;
  box-shadow: 0 16px 64px #0003;
}

#multi-stopwatch-tool .mst-dialog::backdrop { background: #101b16aa; }
#multi-stopwatch-tool .mst-dialog h2 { font-size: 20px; margin-bottom: 12px; }
#multi-stopwatch-tool .mst-dialog p { font-size: 14px; }
#multi-stopwatch-tool .mst-dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 24px; }

#multi-stopwatch-tool .mst-danger-solid {
  background: var(--mst-danger);
  color: var(--mst-card);
  border-color: var(--mst-danger);
}

#multi-stopwatch-tool .mst-notification p { font-size: 18px; }

@media (max-width: 640px) {
  #multi-stopwatch-tool { padding: 22px 14px; margin: 12px auto; border-radius: 16px; }
  #multi-stopwatch-tool .mst-header { flex-wrap: wrap; gap: 12px; }
  #multi-stopwatch-tool .mst-theme { margin-left: auto; }
  #multi-stopwatch-tool .mst-card { padding: 16px; }
  #multi-stopwatch-tool .mst-card-top { gap: 8px; flex-wrap: wrap; }
  #multi-stopwatch-tool .mst-status { margin-left: auto; }
  #multi-stopwatch-tool .mst-card-main { gap: 12px; }
  #multi-stopwatch-tool .mst-time { font-size: clamp(25px, 7.4vw, 34px); }
  #multi-stopwatch-tool .mst-controls {
    width: 100%;
    display: grid;
    grid-template-columns: 1.25fr 1fr 1fr 1fr;
    gap: 6px;
  }
  #multi-stopwatch-tool .mst-controls button { min-width: 0; padding: 10px 5px; font-size: 13px; }
  #multi-stopwatch-tool .mst-guide { padding: 12px; }
  #multi-stopwatch-tool .mst-bulk { flex-direction: column; }
}