/*
 * --accent / --bg / --text / --text-muted / --card-bg / --border are all
 * set at runtime by applyTheme() in app.js from the active pack's config
 * (see THEME_PACKS) — one pack object drives every themed color, per mode.
 * The values below are just a pre-JS fallback (Study Hall / Focus).
 */
:root {
  --accent: #e76f51;
  --bg: #fff1ee;
  --text: #2c2420;
  --text-muted: #6b5f58;
  --card-bg: #ffffff;
  --border: rgba(0, 0, 0, 0.08);
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: "Segoe UI", ui-rounded, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background-color 0.4s ease;
  display: flex;
  justify-content: center;
  padding: 48px 20px 80px;
}

.page {
  width: 100%;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.app-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.header-icons {
  display: flex;
  align-items: center;
  gap: 10px;
}

.app {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.mode-tabs {
  display: flex;
  gap: 8px;
  background: var(--card-bg);
  padding: 6px;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.mode-tab {
  border: none;
  background: transparent;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.mode-tab[aria-selected="true"] {
  background: var(--accent);
  color: #fff;
}

.timer-card {
  width: 100%;
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 48px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.countdown {
  font-family: "SF Mono", "Cascadia Code", ui-monospace, Menlo, Consolas, monospace;
  font-size: 5rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.controls {
  display: flex;
  gap: 14px;
}

.btn-primary, .btn-secondary, .btn-add {
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 10px;
  padding: 12px 28px;
  border: none;
  cursor: pointer;
  transition: transform 0.1s ease, opacity 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.btn-primary:active, .btn-secondary:active, .btn-add:active {
  transform: scale(0.97);
}

.session-stats {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.tasks {
  width: 100%;
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 24px;
}

.tasks h2 {
  margin: 0 0 16px;
  font-size: 1.05rem;
  color: var(--text);
}

.task-form {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.task-form input[type="text"] {
  flex: 1;
  min-width: 0;
}

.task-form input[type="number"] {
  width: 64px;
}

.task-form input {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}

.btn-add {
  background: var(--accent);
  color: #fff;
  padding: 10px 18px;
}

.task-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.task-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: 10px;
  background: var(--bg);
}

.task-item.done .task-title {
  text-decoration: line-through;
  color: var(--text-muted);
}

.task-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

.task-title {
  flex: 1;
  font-size: 0.95rem;
  word-break: break-word;
}

.task-progress {
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.task-item.active {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.task-delete {
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  padding: 4px;
}

.task-delete:hover {
  color: var(--accent);
}

.mute-toggle, .settings-toggle {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.settings-toggle {
  font-size: 1.1rem;
}

.mute-toggle .icon-muted {
  display: none;
}

.mute-toggle[aria-pressed="true"] .icon-unmuted {
  display: none;
}

.mute-toggle[aria-pressed="true"] .icon-muted {
  display: block;
}

.settings-dialog {
  border: none;
  border-radius: var(--radius);
  padding: 0;
  background: var(--card-bg);
  color: var(--text);
}

.settings-dialog::backdrop {
  background: rgba(0, 0, 0, 0.3);
}

.settings-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px;
  min-width: 260px;
}

.settings-form h2 {
  margin: 0 0 8px;
}

.settings-form label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
}

.settings-form input {
  width: 80px;
  font-family: inherit;
  font-size: 0.95rem;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}

.settings-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 8px;
}

.pack-picker {
  position: relative;
}

.pack-picker-label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.pack-picker-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s ease;
}

.pack-picker-btn:hover {
  border-color: var(--accent);
}

.pack-picker-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.pack-picker-chevron {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: transform 0.15s ease;
}

.pack-picker-btn[aria-expanded="true"] .pack-picker-chevron {
  transform: rotate(180deg);
}

.pack-picker-value {
  max-width: 130px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pack-picker-list {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 50;
  min-width: 190px;
  margin: 0;
  padding: 6px;
  list-style: none;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
}

.pack-picker-list[hidden] {
  display: none;
}

.pack-picker-option {
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  outline: none;
}

.pack-picker-option:hover,
.pack-picker-option.focused {
  background: var(--border);
  background: color-mix(in srgb, var(--accent) 16%, transparent);
}

.pack-picker-option[aria-selected="true"] {
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

@media (max-width: 480px) {
  body {
    padding: 24px 16px 60px;
  }

  .page {
    gap: 20px;
  }

  .pack-picker-label {
    font-size: 0.65rem;
  }

  .pack-picker-btn {
    height: 36px;
    padding: 0 10px;
    font-size: 0.8rem;
  }

  .mute-toggle, .settings-toggle {
    width: 36px;
    height: 36px;
  }

  .mode-tabs {
    width: 100%;
  }

  .mode-tab {
    flex: 1;
    padding: 9px 6px;
    font-size: 0.8rem;
    white-space: nowrap;
  }
}

@media (max-width: 400px) {
  .countdown {
    font-size: 3.6rem;
  }
  .timer-card {
    padding: 32px 20px;
  }
}