:root {
  --bg: #1a1a2e;
  --surface: #16213e;
  --text: #eee;
  --text-secondary: #999;
  --work: #27ae60;
  --work-glow: rgba(39, 174, 96, 0.3);
  --short-break: #f1c40f;
  --short-break-glow: rgba(241, 196, 15, 0.3);
  --long-break: #e74c3c;
  --long-break-glow: rgba(231, 76, 60, 0.3);
  --accent: var(--work);
  --accent-glow: var(--work-glow);
  --ring-track: #2a2a4a;
  --transition-speed: 0.5s;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  transition: background var(--transition-speed);
  overflow: auto;
}

body.phase-work     { --accent: var(--work);       --accent-glow: var(--work-glow); }
body.phase-short    { --accent: var(--short-break); --accent-glow: var(--short-break-glow); }
body.phase-long     { --accent: var(--long-break);  --accent-glow: var(--long-break-glow); }

.app-layout {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 2rem;
  min-height: 100vh;
  padding: 2rem;
}

.timer-panel {
  flex: 0 0 auto;
  display: flex;
  justify-content: center;
}

.task-panel {
  flex: 0 0 350px;
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 500px;
  max-height: calc(100vh - 4rem);
}

.task-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.task-panel-header h2 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  letter-spacing: 0.06em;
}

.task-panel-actions {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.action-btn {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-secondary);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.7rem;
  padding: 0.25em 0.6em;
  border-radius: 4px;
  transition: all 0.15s;
  white-space: nowrap;
}

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

.task-panel-hint {
  font-size: 0.7rem;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

.task-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow-y: auto;
  flex: 1;
}

.task-list:empty::after {
  content: '暂无任务，Ctrl+Shift+L 添加';
  display: block;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.8rem;
  padding: 2rem 0;
}

.task-item {
  background: var(--bg);
  border-radius: 10px;
  padding: 0.8rem 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  border-left: 3px solid var(--ring-track);
  transition: all 0.3s;
  position: relative;
}

.task-item.prio-urgent-important      { border-left-color: #e74c3c; }
.task-item.prio-important-not-urgent { border-left-color: #3498db; }
.task-item.prio-urgent-not-important { border-left-color: #e67e22; }
.task-item.prio-not-important-not-urgent { border-left-color: #2d6a4f; }

.task-item.selected {
  border-color: currentColor;
}

.task-item.prio-urgent-important.selected {
  --neon: #e74c3c;
  animation: neonRed 1.5s ease-in-out infinite;
}

.task-item.prio-important-not-urgent.selected {
  --neon: #3498db;
  animation: neonBlue 1.5s ease-in-out infinite;
}

.task-item.prio-urgent-not-important.selected {
  --neon: #e67e22;
  animation: neonOrange 1.5s ease-in-out infinite;
}

.task-item.prio-not-important-not-urgent.selected {
  --neon: #2d6a4f;
  animation: neonGreen 1.5s ease-in-out infinite;
}

@keyframes neonRed {
  0%, 100% { box-shadow: 0 0 16px rgba(231,76,60,0.4), 0 0 4px #e74c3c, inset 0 0 16px rgba(231,76,60,0.05); }
  50%      { box-shadow: 0 0 30px rgba(231,76,60,0.7), 0 0 12px #e74c3c, inset 0 0 24px rgba(231,76,60,0.1); }
}

@keyframes neonBlue {
  0%, 100% { box-shadow: 0 0 16px rgba(52,152,219,0.4), 0 0 4px #3498db, inset 0 0 16px rgba(52,152,219,0.05); }
  50%      { box-shadow: 0 0 30px rgba(52,152,219,0.7), 0 0 12px #3498db, inset 0 0 24px rgba(52,152,219,0.1); }
}

@keyframes neonOrange {
  0%, 100% { box-shadow: 0 0 16px rgba(230,126,34,0.4), 0 0 4px #e67e22, inset 0 0 16px rgba(230,126,34,0.05); }
  50%      { box-shadow: 0 0 30px rgba(230,126,34,0.7), 0 0 12px #e67e22, inset 0 0 24px rgba(230,126,34,0.1); }
}

@keyframes neonGreen {
  0%, 100% { box-shadow: 0 0 16px rgba(45,106,79,0.4), 0 0 4px #2d6a4f, inset 0 0 16px rgba(45,106,79,0.05); }
  50%      { box-shadow: 0 0 30px rgba(45,106,79,0.7), 0 0 12px #2d6a4f, inset 0 0 24px rgba(45,106,79,0.1); }
}

.task-item-row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.task-item-checkbox {
  flex: 0 0 auto;
  margin-top: 2px;
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

.task-item-content {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.4;
  padding-right: 1.5rem;
  flex: 1;
}

.task-item-content.completed {
  text-decoration: line-through;
  color: var(--text-secondary);
  opacity: 0.6;
}

.task-item-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  align-items: center;
}

.task-prio-badge {
  font-size: 0.65rem;
  font-weight: 500;
  padding: 0.12em 0.45em;
  border-radius: 4px;
  white-space: nowrap;
}

.prio-urgent-important .task-prio-badge       { background: #e74c3c; color: #fff; }
.prio-important-not-urgent .task-prio-badge   { background: #3498db; color: #fff; }
.prio-urgent-not-important .task-prio-badge   { background: #e67e22; color: #fff; }
.prio-not-important-not-urgent .task-prio-badge { background: #2d6a4f; color: #fff; }

.task-item-time {
  font-size: 0.72rem;
  color: var(--text-secondary);
}

.task-item-recorded {
  font-size: 0.68rem;
  color: var(--text-secondary);
  opacity: 0.7;
}

.task-item-del {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.task-item-del:hover { color: #e74c3c; background: rgba(231,76,60,0.15); }

.task-modal { width: 440px; }

.task-modal .time-config {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.6rem;
}

.task-modal .time-config label {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.task-modal .time-config input {
  width: 100%;
  padding: 0.4em 0.5em;
  font-size: 0.85rem;
}

.task-modal select,
.task-modal input[type="datetime-local"] {
  background: var(--bg);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  padding: 0.5em 0.7em;
  color: var(--text);
  font-family: inherit;
  font-size: 0.85rem;
  width: 100%;
  outline: none;
}

.task-modal select:focus,
.task-modal input[type="datetime-local"]:focus { border-color: var(--accent); }

.task-modal select { cursor: pointer; }

.task-modal input[type="datetime-local"] { transition: border-color 0.2s; }

.task-modal input[type="datetime-local"]::-webkit-calendar-picker-indicator {
  filter: invert(0.8);
  cursor: pointer;
}

.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  padding: 2rem;
}

h1 {
  font-size: 1.6rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.phase-label {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 0.4em 1.2em;
  border-radius: 20px;
  transition: all var(--transition-speed);
}

.phase-switch {
  display: flex;
  gap: 0.5rem;
}

.phase-btn {
  border: 1px solid rgba(255,255,255,0.12);
  outline: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 0.4em 1em;
  border-radius: 10px;
  transition: all 0.2s;
  background: transparent;
  color: var(--text-secondary);
}

.phase-btn:hover { opacity: 0.85; transform: translateY(-1px); }
.phase-btn:active { transform: scale(0.96); }

.phase-btn.btn-work {
  border-color: var(--work);
  color: var(--work);
}

.phase-btn.btn-short {
  border-color: var(--short-break);
  color: var(--short-break);
}

.phase-btn.btn-long {
  border-color: var(--long-break);
  color: var(--long-break);
}

.phase-btn.active-phase {
  color: #fff;
}

.phase-btn.btn-work.active-phase  { background: var(--work); }
.phase-btn.btn-short.active-phase { background: var(--short-break); }
.phase-btn.btn-long.active-phase  { background: var(--long-break); }

.timer-wrapper {
  position: relative;
  width: 300px;
  height: 300px;
}

.timer-ring {
  transform: rotate(-90deg);
  width: 100%;
  height: 100%;
}

.ring-track {
  fill: none;
  stroke: var(--ring-track);
  stroke-width: 8;
}

.ring-progress {
  fill: none;
  stroke: var(--accent);
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke var(--transition-speed), stroke-dashoffset 0.9s linear;
}

.time-display {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.time-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.adj-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.1);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  line-height: 1;
}

.adj-btn:hover { color: var(--accent); border-color: var(--accent); }
.adj-btn:active { transform: scale(0.9); }

.adj-btn:disabled { opacity: 0.25; pointer-events: none; }

.time-input {
  width: 180px;
  font-size: 3.4rem;
  font-weight: 300;
  font-family: "SF Mono", "Cascadia Code", "Consolas", monospace;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
  color: var(--text);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  outline: none;
  text-align: center;
  padding: 0;
  transition: border-color 0.2s;
}

.time-input:hover { border-bottom-color: rgba(255,255,255,0.15); }
.time-input:focus  { border-bottom-color: var(--accent); }

.time-input:disabled {
  border-bottom-color: transparent;
  opacity: 1;
  -webkit-text-fill-color: var(--text);
}

.time-input.urgent {
  animation: pulse 0.6s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.7; transform: scale(1.04); }
}

.session-info {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.3rem;
}

.controls {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.btn {
  outline: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  padding: 0.7em 1.6em;
  border-radius: 10px;
  transition: all 0.2s;
  background: var(--surface);
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.08);
}

.btn:hover   { border-color: var(--accent); color: var(--accent); }
.btn:active  { transform: scale(0.96); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover { opacity: 0.9; color: #fff; }

.settings-btn {
  position: fixed;
  top: 1.2rem;
  right: 1.2rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.08);
  background: var(--surface);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  z-index: 10;
}

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

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 2rem;
  width: 380px;
  max-width: 90vw;
  max-height: 85vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.modal h2 {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
  letter-spacing: 0.08em;
}

.phase-setting {
  background: var(--bg);
  border-radius: 10px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.phase-setting-header {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.modal label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.modal input[type="number"] {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  padding: 0.5em 0.7em;
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  width: 100%;
  outline: none;
  transition: border-color 0.2s;
}

.modal input[type="number"]:focus { border-color: var(--accent); }

.modal input[type="url"] {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  padding: 0.5em 0.7em;
  color: var(--text);
  font-family: inherit;
  font-size: 0.85rem;
  width: 100%;
  outline: none;
  transition: border-color 0.2s;
}

.modal input[type="url"]:focus { border-color: var(--accent); }

.modal label.inline {
  flex-direction: row;
  align-items: center;
  gap: 0.4rem;
}

.modal input[type="checkbox"] {
  width: auto;
  accent-color: var(--accent);
}

.modal-actions {
  display: flex;
  gap: 0.8rem;
  justify-content: flex-end;
}

.pomodoro-dots {
  display: flex;
  gap: 0.8rem;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}

.dot {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--ring-track);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
  transition: all 0.3s;
  border: 2px solid transparent;
  cursor: pointer;
}

.dot:hover {
  border-color: rgba(255,255,255,0.3);
  color: #fff;
}

.dot.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 16px var(--accent-glow);
}

@media (max-width: 800px) {
  .app-layout {
    flex-direction: column;
    align-items: center;
  }
  .task-panel {
    flex: 0 0 auto;
    width: 100%;
    max-width: 400px;
    max-height: none;
  }
}

@media (max-width: 400px) {
  .timer-wrapper { width: 240px; height: 240px; }
  .time-input { font-size: 2.4rem; width: 130px; }
  .adj-btn { width: 28px; height: 28px; font-size: 1rem; }
  .btn { padding: 0.6em 1.2em; font-size: 0.85rem; }
  .task-modal { width: 95vw; }
  .task-modal .time-config { grid-template-columns: 1fr; }
}