/* --- 1. Main Layout & Container --- */
.pomodoro-main {
  width: min(1200px, 100%);
  margin: 0 auto;
  padding: 24px;
  flex: 1;
}

.pomodoro-header {
  text-align: center;
  margin-bottom: 40px;
}

.pomodoro-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  transition: color 0.3s ease;
}

.pomodoro-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
  transition: color 0.3s ease;
}

.pomodoro-container {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* --- 2. Timer Section --- */
.timer-section {
  padding: 48px 24px;
  text-align: center;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  transition: background-color 0.3s ease, border-color 0.3s ease, opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.timer-section.transitioning {
  opacity: 0;
  transform: scale(0.98);
}

.timer-display {
  font-size: 96px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
  margin: 0 0 24px;
  font-variant-numeric: tabular-nums;
  transition: color 0.3s ease;
}

.timer-display.running {
  animation: timerPulse 2s ease-in-out infinite;
}

.timer-progress {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto 24px;
}

.progress-ring {
  transform: rotate(-90deg);
}

.progress-ring-circle {
  stroke: var(--accent);
  fill: none;
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.3s ease, stroke 0.3s ease;
}

.progress-ring-bg {
  stroke: var(--border);
  fill: none;
  stroke-width: 8;
}

/* --- 3. Buttons & Controls --- */
.timer-mode {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 24px;
}

.mode-btn {
  padding: 8px 20px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.mode-btn:hover {
  border-color: var(--accent);
  color: var(--text-secondary);
}

.mode-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.timer-controls {
  display: flex;
  gap: 12px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

.timer-btn {
  padding: 14px 32px;
  border-radius: 12px;
  border: none;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.timer-btn.primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.timer-btn.primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

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

.timer-btn.secondary:hover {
  background: var(--card-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.timer-btn:active { transform: translateY(0); }
.timer-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* --- 4. Session & Task Info --- */
.session-info {
  padding: 20px 24px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 20px;
  transition: all 0.3s ease;
}

.session-stat { text-align: center; }
.session-stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 4px;
}

.session-stat-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.focus-task-section {
  padding: 24px;
  border-bottom: 1px solid var(--border);
}

.focus-task-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.focus-task-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.select-task-btn {
  padding: 8px 16px;
  border-radius: 10px;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.select-task-btn:hover {
  background: var(--accent-light);
}

.current-focus-task {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  transition: border-color 0.3s ease;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 14px;
  align-items: start;
}

.current-focus-task:hover {
  border-color: var(--accent);
}

.focus-task-content {
  flex: 1;
  min-width: 0;
}

.focus-task-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.focus-task-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.focus-task-checkbox {
  width: 22px;
  height: 22px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--accent);
  border-radius: 6px;
  transition: var(--transition);
}

.focus-task-checkbox:checked {
  animation: checkBounce 0.3s ease-out;
}

/* --- 5. Settings Grid --- */
.settings-section { padding: 24px; }
.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.setting-item { display: flex; flex-direction: column; gap: 8px; }
.setting-label { font-size: 13px; font-weight: 600; color: var(--text-secondary); }
.setting-input {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-secondary);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  transition: all 0.3s ease;
}

.setting-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
  background: var(--card);
}

/* --- 6. Modals & Shortcuts CSS --- */

/* Keyboard Shortcuts Modal */
.keyboard-shortcuts-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease-out;
  backdrop-filter: blur(4px);
}

.keyboard-shortcuts-modal.hidden {
  display: none;
}

.keyboard-shortcuts-content {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 700px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.keyboard-shortcuts-header {
  padding: 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.keyboard-shortcuts-header h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin: 0;
  transition: color 0.3s ease;
}

.close-shortcuts {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text-secondary);
  transition: background-color 0.3s ease, border-color 0.3s ease, transform 0.2s ease, color 0.3s ease;
}

.close-shortcuts:hover {
  background: var(--card-hover);
  border-color: var(--accent);
  transform: scale(1.05);
  color: var(--text);
}

.keyboard-shortcuts-body {
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.shortcuts-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.shortcuts-section h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin: 0 0 8px;
  transition: color 0.3s ease;
}

.shortcut-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  gap: 16px;
  transition: background-color 0.3s ease;
}

.shortcut-keys {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.shortcut-keys kbd {
  padding: 4px 8px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  font-family: 'DM Sans', monospace;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  min-width: 24px;
  text-align: center;
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.shortcut-desc {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  text-align: right;
  transition: color 0.3s ease;
}

/* Task Selector Modal */
.task-selector-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 9999;
  animation: fadeIn 0.15s ease-out;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.task-selector-backdrop.hidden {
  display: none;
}

.task-selector-modal {
  background: var(--card);
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  max-width: 500px;
  width: 100%;
  max-height: 70vh;
  z-index: 10000;
  animation: slideUp 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s ease;
  position: relative;
}

.task-selector-header {
  padding: 24px 28px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: border-color 0.3s ease;
}

.task-selector-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin: 0;
  transition: color 0.3s ease;
}

.task-selector-close {
  background: none;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 20px;
  transition: all 0.15s;
}

.task-selector-close:hover {
  background: var(--bg-secondary);
  color: var(--text);
}

.task-selector-list {
  padding: 16px 28px;
  overflow-y: auto;
  flex: 1;
}

.task-selector-item {
  padding: 16px;
  border-radius: 12px;
  margin-bottom: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.15s;
}

.task-selector-item:hover {
  background: var(--bg-secondary);
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.task-selector-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  transition: color 0.3s ease;
}

.task-selector-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 13px;
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.task-selector-empty {
  text-align: center;
  padding: 48px 24px;
}

.task-selector-empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.task-selector-empty-text {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  transition: color 0.3s ease;
}

.task-selector-empty-hint {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.no-focus-task {
  text-align: center;
  padding: 24px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  border: 1px dashed var(--border);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.no-focus-icon { font-size: 32px; margin-bottom: 12px; }
.no-focus-text { 
  font-weight: 600; 
  color: var(--text); 
  margin-bottom: 4px;
  transition: color 0.3s ease;
}
.no-focus-hint { 
  font-size: 13px; 
  color: var(--text-muted);
  transition: color 0.3s ease;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes slideDown {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
}

@keyframes timerPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.02); }
}

/* Priority badges for task selector */
.todo-badge {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: inline-flex;
  align-items: center;
}

.todo-badge.priority-high { background: var(--danger-light); color: var(--danger); }
.todo-badge.priority-medium { background: var(--warning-light); color: var(--warning); }
.todo-badge.priority-low { background: var(--success-light); color: var(--success); }

.todo-due {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text-muted);
  transition: color 0.3s ease;
}

/* Responsive */
@media (max-width: 768px) {
  .timer-display { font-size: 72px; }
  .session-info { gap: 16px; }
  .session-stat-value { font-size: 24px; }
  .settings-grid { grid-template-columns: 1fr; }
  .keyboard-shortcuts-body { grid-template-columns: 1fr; }
  
  .shortcut-item {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .shortcut-desc {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .timer-display { font-size: 56px; }
  .timer-controls { flex-direction: column; width: 100%; }
  .timer-btn { width: 100%; justify-content: center; }
  .pomodoro-header { margin-bottom: 24px; }
  .pomodoro-title { font-size: 24px; }
  .current-focus-task {
    grid-template-columns: 28px 1fr;
  }
}

.keyboard-shortcuts-modal {
  backdrop-filter: blur(4px);
}

@keyframes slideDown {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}