/* =========================================================
   POMODORO FOCUS - MODERN STYLING
   ========================================================= */

:root {
  /* Default Dark Theme (Obsidian) */
  --bg-app: #0d1117;
  --bg-card: #161b22;
  --bg-card-hover: #1c2128;
  --bg-subtle: #21262d;
  --border-color: #30363d;
  --border-focus: #58a6ff;
  
  --text-primary: #f0f6fc;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  
  --accent-pomodoro: #f85149;
  --accent-pomodoro-glow: rgba(248, 81, 73, 0.25);
  --accent-short-break: #2ea043;
  --accent-short-break-glow: rgba(46, 160, 67, 0.25);
  --accent-long-break: #388bfd;
  --accent-long-break-glow: rgba(56, 139, 253, 0.25);

  --current-accent: var(--accent-pomodoro);
  --current-accent-glow: var(--accent-pomodoro-glow);

  --track-color: #21262d;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.4);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme (Clean Paper) */
[data-theme="light"] {
  --bg-app: #f4f6f8;
  --bg-card: #ffffff;
  --bg-card-hover: #f9fafb;
  --bg-subtle: #e5e7eb;
  --border-color: #d1d5db;
  --border-focus: #2563eb;
  
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  
  --accent-pomodoro: #e11d48;
  --accent-pomodoro-glow: rgba(225, 29, 72, 0.2);
  --accent-short-break: #059669;
  --accent-short-break-glow: rgba(5, 150, 105, 0.2);
  --accent-long-break: #2563eb;
  --accent-long-break-glow: rgba(37, 99, 235, 0.2);

  --track-color: #e5e7eb;
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.08);
}

/* Warm Sunset Theme */
[data-theme="sunset"] {
  --bg-app: #181216;
  --bg-card: #231a20;
  --bg-card-hover: #2e222a;
  --bg-subtle: #362933;
  --border-color: #4a3845;
  --border-focus: #ff7b72;
  
  --text-primary: #fff0f5;
  --text-secondary: #c9b0be;
  --text-muted: #8c7382;
  
  --accent-pomodoro: #ff6b6b;
  --accent-pomodoro-glow: rgba(255, 107, 107, 0.3);
  --accent-short-break: #ffa94d;
  --accent-short-break-glow: rgba(255, 169, 77, 0.3);
  --accent-long-break: #f06595;
  --accent-long-break-glow: rgba(240, 101, 149, 0.3);

  --track-color: #362933;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.45);
}

/* Neon Cyber Theme */
[data-theme="cyber"] {
  --bg-app: #080914;
  --bg-card: #0f1123;
  --bg-card-hover: #171a36;
  --bg-subtle: #1e2246;
  --border-color: #2e356b;
  --border-focus: #00f0ff;
  
  --text-primary: #00f0ff;
  --text-secondary: #8c9bf0;
  --text-muted: #56619c;
  
  --accent-pomodoro: #ff007f;
  --accent-pomodoro-glow: rgba(255, 0, 127, 0.35);
  --accent-short-break: #00f0ff;
  --accent-short-break-glow: rgba(0, 240, 255, 0.35);
  --accent-long-break: #a855f7;
  --accent-long-break-glow: rgba(168, 85, 247, 0.35);

  --track-color: #1e2246;
  --shadow-sm: 0 0 12px rgba(0, 240, 255, 0.15);
  --shadow-lg: 0 0 30px rgba(0, 240, 255, 0.25);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-app);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  transition: background-color 0.3s ease, color 0.3s ease;
  padding: 24px 16px 40px;
}

/* Layout container */
.app-wrapper {
  width: 100%;
  max-width: 520px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  font-size: 28px;
  line-height: 1;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.brand-text h1 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.mcp-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  color: #3fb950;
  background: rgba(63, 185, 80, 0.1);
  border: 1px solid rgba(63, 185, 80, 0.25);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-top: 2px;
}

.mcp-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #3fb950;
  box-shadow: 0 0 6px #3fb950;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.header-actions {
  display: flex;
  gap: 8px;
}

.icon-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.icon-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--text-muted);
  transform: translateY(-1px);
}

.icon {
  width: 18px;
  height: 18px;
}

.hidden {
  display: none !important;
}

/* Main Content Card */
.main-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

/* Mode Tabs */
.mode-tabs {
  display: flex;
  background: var(--bg-subtle);
  padding: 4px;
  border-radius: var(--radius-full);
  gap: 4px;
  width: 100%;
  max-width: 420px;
}

.mode-tab {
  flex: 1;
  padding: 10px 14px;
  font-size: 13.5px;
  font-weight: 600;
  font-family: var(--font-main);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.mode-tab:hover {
  color: var(--text-primary);
}

.mode-tab.active {
  background: var(--current-accent);
  color: #ffffff;
  box-shadow: 0 4px 14px var(--current-accent-glow);
}

/* Circular Timer */
.timer-container {
  position: relative;
  width: 280px;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.circular-progress {
  position: relative;
  width: 100%;
  height: 100%;
}

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

.progress-track {
  fill: none;
  stroke: var(--track-color);
  stroke-width: 10;
}

.progress-bar {
  fill: none;
  stroke: var(--current-accent);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 880; /* 2 * PI * 140 ≈ 879.6 */
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 0.8s ease, stroke 0.3s ease;
  filter: drop-shadow(0 0 8px var(--current-accent-glow));
}

.timer-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.timer-time {
  font-family: var(--font-mono);
  font-size: 54px;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.timer-phase-badge {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-subtle);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
}

.cycle-tracker {
  display: flex;
  gap: 6px;
  margin-top: 4px;
}

.cycle-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.cycle-dot.completed {
  background: var(--current-accent);
  border-color: var(--current-accent);
  box-shadow: 0 0 6px var(--current-accent-glow);
}

/* Timer Controls */
.timer-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  width: 100%;
}

.control-btn {
  font-family: var(--font-main);
  font-weight: 700;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition);
  user-select: none;
}

.control-btn.primary {
  background: var(--current-accent);
  color: #ffffff;
  border: none;
  font-size: 18px;
  padding: 16px 36px;
  min-width: 160px;
  box-shadow: 0 6px 20px var(--current-accent-glow);
}

.control-btn.primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
  box-shadow: 0 8px 24px var(--current-accent-glow);
}

.control-btn.primary:active {
  transform: translateY(0);
}

.control-btn.secondary {
  background: var(--bg-subtle);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  font-size: 14px;
  padding: 12px 20px;
}

.control-btn.secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--text-muted);
  transform: translateY(-1px);
}

/* Active Task Banner */
.active-task-banner {
  width: 100%;
  background: var(--bg-subtle);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
}

.active-label {
  font-weight: 700;
  color: var(--current-accent);
  white-space: nowrap;
}

.active-title {
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Task Section */
.task-section {
  width: 100%;
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

.task-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.task-header h2 {
  font-size: 16px;
  font-weight: 700;
}

.task-count {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-subtle);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.task-form {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}

.task-form input[type="text"] {
  flex: 1;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font-main);
  outline: none;
  transition: var(--transition);
}

.task-form input[type="text"]:focus {
  border-color: var(--current-accent);
  box-shadow: 0 0 0 3px var(--current-accent-glow);
}

.task-est-container {
  display: flex;
  align-items: center;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0 8px;
  gap: 4px;
}

.task-est-container input {
  width: 40px;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  outline: none;
}

.add-task-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-weight: 600;
  font-size: 13.5px;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.add-task-btn:hover {
  background: var(--current-accent);
  color: #fff;
  border-color: var(--current-accent);
}

/* Task list items */
.task-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 240px;
  overflow-y: auto;
}

.task-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.task-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--text-muted);
}

.task-item.active-task-item {
  border-left: 4px solid var(--current-accent);
  background: var(--bg-card-hover);
}

.task-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  overflow: hidden;
}

.task-checkbox {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  cursor: pointer;
  accent-color: var(--current-accent);
}

.task-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

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

.task-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.task-pomos {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  background: var(--bg-card);
  padding: 2px 6px;
  border-radius: 4px;
}

.task-del-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 16px;
  padding: 2px 6px;
  border-radius: 4px;
  transition: var(--transition);
}

.task-del-btn:hover {
  color: var(--accent-pomodoro);
  background: rgba(248, 81, 73, 0.1);
}

.empty-task-state {
  text-align: center;
  padding: 24px 10px;
  color: var(--text-muted);
  font-size: 13.5px;
}

/* Footer */
.app-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}

.shortcuts-hint {
  display: flex;
  gap: 14px;
  font-size: 12px;
  color: var(--text-muted);
  flex-wrap: wrap;
  justify-content: center;
}

kbd {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
}

.footer-meta {
  font-size: 12px;
  color: var(--text-muted);
}

.footer-meta strong {
  color: #3fb950;
}

/* Modal Overlay & Card */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  padding: 16px;
  animation: fadeIn 0.2s ease;
}

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

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 440px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: slideUp 0.25s ease;
}

@keyframes slideUp {
  from { transform: translateY(15px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  font-size: 17px;
  font-weight: 700;
}

.close-btn {
  background: transparent;
  border: none;
  font-size: 24px;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  transition: var(--transition);
}

.close-btn:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 20px 22px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.setting-group h4 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 700;
}

.duration-inputs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.input-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px;
  text-align: center;
}

.input-card label {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 6px;
  font-weight: 600;
}

.input-card input {
  width: 100%;
  background: transparent;
  border: none;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  outline: none;
}

.setting-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.inline-input {
  width: 60px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 6px 8px;
  color: var(--text-primary);
  text-align: center;
  font-family: var(--font-mono);
}

.sound-preview-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

select {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 13.5px;
  outline: none;
}

.test-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}

.test-btn:hover {
  background: var(--current-accent);
  color: #fff;
}

.slider {
  width: 120px;
  accent-color: var(--current-accent);
}

.toggle-switch {
  width: 20px;
  height: 20px;
  accent-color: var(--current-accent);
  cursor: pointer;
}

/* Theme picker */
.theme-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.theme-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.theme-btn.active {
  border-color: var(--current-accent);
  background: var(--current-accent-glow);
  color: var(--current-accent);
}

/* Modal Footer */
.modal-footer {
  padding: 16px 22px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.btn-primary {
  background: var(--current-accent);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary:hover {
  filter: brightness(1.1);
}

.btn-text {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
}

.btn-text:hover {
  color: var(--accent-pomodoro);
}

/* Statistics Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.stat-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 14px;
  text-align: center;
}

.stat-val {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--current-accent);
  margin-bottom: 4px;
}

.stat-lbl {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 600;
}

.mcp-info-box {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 14px;
}

.mcp-info-box h4 {
  font-size: 14px;
  margin-bottom: 6px;
  color: #3fb950;
}

.mcp-info-box p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 8px;
}

.mcp-endpoints code {
  display: block;
  font-size: 11.5px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-top: 4px;
}