*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #f7f6f2;
  --border: rgba(0, 0, 0, 0.07);
  --text: #1a1a1a;
  --text-muted: #aaa;
  --text-secondary: #666;
  --header-height: 52px;
  --accent: #CD0A00;
}

html, body {
  height: 100%;
  background: var(--bg);
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 300;
  color: var(--text);
  overflow: hidden;
}

/* ── Header ─────────────────────────────────────── */
header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  border-bottom: 1px solid var(--border);
}

#week-number {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.toggles {
  display: flex;
  gap: 28px;
  align-items: center;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}

.toggle input {
  display: none;
}

.track {
  position: relative;
  width: 40px;
  height: 22px;
  background: #ddd;
  border-radius: 11px;
  transition: background 0.2s ease;
  flex-shrink: 0;
}

.track::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  background: white;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: left 0.2s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

.toggle input:checked + .track {
  background: #1a1a1a;
}

.toggle input:checked + .track::after {
  left: 21px;
}

.toggle-label {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

#bridgeDaysLabel {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

#bridgeDaysLabel.visible {
  opacity: 1;
  pointer-events: all;
}

/* ── Cards ───────────────────────────────────────── */
#cards {
  height: calc(100vh - var(--header-height));
  display: flex;
  flex-direction: column;
}

.card {
  position: relative;
  flex: 1;
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
  overflow: hidden;
}

.card:last-child {
  border-bottom: none;
}

.card canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.card-content {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 10px 24px 0;
  pointer-events: none;
}

.card-name {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.4s ease;
}

.card-ends {
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  transition: color 0.4s ease;
}

.card-remaining {
  font-size: 13px;
  font-weight: 300;
  color: var(--text-secondary);
  transition: color 0.4s ease;
}

/* State variants */
.card.state-not-work-time .card-name,
.card.state-not-work-time .card-remaining {
  color: #ccc;
}

.card.state-summer .card-name {
  color: #c4902a;
}

.card.state-summer .card-remaining {
  color: #c4902a;
  opacity: 0.8;
}

.card.state-off-season .card-name,
.card.state-off-season .card-remaining {
  color: #b0b8c8;
}

/* Loading state */
#loading {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  z-index: 100;
  transition: opacity 0.5s ease;
}

#loading.hidden {
  opacity: 0;
  pointer-events: none;
}

/* ── Edit toggle button ──────────────────────────────── */
#editToggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  font-size: 16px;
  line-height: 1;
  color: var(--text-muted);
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
}

#editToggle:hover {
  color: var(--text-secondary);
}

#editToggle.active {
  color: var(--text);
}

/* ── Card edit-mode controls ─────────────────────────── */
.card-edit-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  padding: 0 2px;
  pointer-events: all;
  transition: opacity 0.15s ease;
  opacity: 0.4;
}

.card-edit-btn:hover {
  opacity: 1;
}

.card-remove {
  color: var(--text-muted);
}

.card-restore {
  color: var(--text-muted);
}

/* ── Ghost card (hidden built-in, shown in edit mode) ── */
.card-ghost {
  opacity: 0.35;
}

.card-content-interactive {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 10px 24px 0;
}

/* ── Add custom timer card ───────────────────────────── */
.card-add {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.add-timer-form {
  display: flex;
  align-items: center;
  gap: 10px;
}

.add-timer-form input[type="text"],
.add-timer-form input[type="date"] {
  background: none;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.04em;
  padding: 4px 2px;
  outline: none;
  transition: border-color 0.2s ease;
}

.add-timer-form input[type="text"] {
  width: 120px;
}

.add-timer-form input[type="date"] {
  width: 120px;
  color-scheme: light dark;
}

.add-timer-form input:focus {
  border-bottom-color: var(--text-secondary);
}

.add-timer-form button {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.06em;
  padding: 4px 12px;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.add-timer-form button:hover {
  border-color: var(--text-secondary);
  color: var(--text);
}

/* ── Theme toggle button ─────────────────────────────── */
#themeToggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  font-size: 16px;
  line-height: 1;
  color: var(--text-muted);
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
}

#themeToggle:hover {
  color: var(--text-secondary);
}

/* ── Dark mode ───────────────────────────────────── */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #111114;
    --border: rgba(255, 255, 255, 0.08);
    --text: #e8e8e8;
    --text-muted: #555;
    --text-secondary: #888;
  }

  :root:not([data-theme="light"]) .track {
    background: #3a3a3a;
  }

  :root:not([data-theme="light"]) .toggle input:checked + .track {
    background: #d0d0d0;
  }

  :root:not([data-theme="light"]) .toggle input:checked + .track::after {
    background: #1a1a1a;
  }

  :root:not([data-theme="light"]) .card {
    border-bottom-color: rgba(255, 255, 255, 0.07);
  }

  :root:not([data-theme="light"]) .card.state-not-work-time .card-name,
  :root:not([data-theme="light"]) .card.state-not-work-time .card-remaining {
    color: #333;
  }

  :root:not([data-theme="light"]) .card.state-off-season .card-name,
  :root:not([data-theme="light"]) .card.state-off-season .card-remaining {
    color: #5a6070;
  }
}

[data-theme="dark"] {
  --bg: #111114;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8e8e8;
  --text-muted: #555;
  --text-secondary: #888;
}

[data-theme="dark"] .track {
  background: #3a3a3a;
}

[data-theme="dark"] .toggle input:checked + .track {
  background: #d0d0d0;
}

[data-theme="dark"] .toggle input:checked + .track::after {
  background: #1a1a1a;
}

[data-theme="dark"] .card {
  border-bottom-color: rgba(255, 255, 255, 0.07);
}

[data-theme="dark"] .card.state-not-work-time .card-name,
[data-theme="dark"] .card.state-not-work-time .card-remaining {
  color: #333;
}

[data-theme="dark"] .card.state-off-season .card-name,
[data-theme="dark"] .card.state-off-season .card-remaining {
  color: #5a6070;
}