/* ==========================================================================
   POMODORO TIMER MODERN LIGHT SYSTEM (MOCK-UP MATCH)
   ========================================================================== */

:root {
  /* Premium Light Color Palette */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --border-color: #e2e8f0;
  
  --color-blue: #1d5bf0;
  --color-blue-hover: #154ecb;
  --color-blue-light: rgba(29, 91, 240, 0.08);
  --color-green: #10b981;
  --color-green-hover: #059669;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-dimmed: #94a3b8;
  
  /* System Tokens */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 18px -2px rgba(0, 0, 0, 0.06), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-theme {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --border-color: #334155;
  
  --color-blue: #3b82f6;
  --color-blue-hover: #60a5fa;
  --color-blue-light: rgba(59, 130, 246, 0.15);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dimmed: #64748b;
  
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 18px -2px rgba(0, 0, 0, 0.4), 0 2px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
}

/* ==========================================================================
   BASE STYLING & RESETS
   ========================================================================== */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Global utility class for toggling elements */
.hidden {
  display: none !important;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* ==========================================================================
   LAYOUT STRUCTURE
   ========================================================================== */

.main-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding-bottom: 56px; /* Safe space for bottom media bar */
}

/* ==========================================================================
   HEADER SECTION
   ========================================================================== */

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.8rem 2.5rem;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  z-index: 10;
}

.header-logo {
  cursor: pointer;
  user-select: none;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--text-main);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Badges and Action buttons */
.badge-btn {
  background-color: var(--color-blue);
  color: #ffffff;
  border: none;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}
.badge-btn:hover {
  background-color: var(--color-blue-hover);
  transform: translateY(-1px);
}

.header-btn {
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 0.88rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.65rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.header-btn:hover {
  background-color: var(--bg-secondary);
}

.header-btn svg {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}
.header-btn:hover svg {
  color: var(--text-main);
}

/* ==========================================================================
   SPLIT VIEW LAYOUT
   ========================================================================== */

.split-layout {
  display: flex;
  flex: 1;
  width: 100vw;
}

/* LEFT SIDE: TIMER AREA */
.left-column {
  flex: 65; /* Takes 65% width */
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  background-color: var(--bg-primary);
}

.timer-area-wrapper {
  width: 100%;
  max-width: 520px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.challenge-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 1.8rem;
  letter-spacing: -0.2px;
}

/* Navigation Tabs */
.timer-tabs {
  display: flex;
  gap: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  width: 100%;
  justify-content: center;
  margin-bottom: 2rem;
}

.tab-btn {
  background: transparent;
  border: none;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-green); /* Non-active breaks are green in mockup */
  padding: 0.6rem 0.2rem;
  cursor: pointer;
  position: relative;
  transition: color var(--transition-fast);
}

/* Pomodoro is blue/black text */
#tab-pomodoro {
  color: var(--text-muted);
}
#tab-pomodoro:hover {
  color: var(--text-main);
}

.tab-btn:hover {
  color: var(--color-green-hover);
}

.tab-btn.active {
  color: var(--color-blue) !important;
}

.tab-btn.active::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-blue);
  border-radius: 99px;
}

.tab-count {
  font-size: 0.85rem;
  font-weight: 700;
  margin-left: 2px;
}

/* ==========================================================================
   CIRCULAR TIME DISPLAY (MOCK-UP ACCURATE)
   ========================================================================== */

.timer-circle-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 2.2rem;
}

.timer-circle {
  width: 330px;
  height: 330px;
  border-radius: 50%;
  border: 4px solid rgba(29, 91, 240, 0.15); /* Celeste transparent border */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-color: var(--bg-primary);
  box-shadow: 0 8px 30px rgba(29, 91, 240, 0.02);
  transition: border-color var(--transition-slow);
}

body.mode-shortBreak .timer-circle {
  border-color: rgba(16, 185, 129, 0.15);
}
body.mode-longBreak .timer-circle {
  border-color: rgba(29, 91, 240, 0.15);
}

.timer-display {
  font-size: 5.6rem;
  font-weight: 700;
  letter-spacing: -2px;
  color: var(--color-blue);
  line-height: 1.1;
  font-feature-settings: "tnum";
  user-select: none;
  transition: color var(--transition-slow);
}

body.mode-shortBreak .timer-display {
  color: var(--color-green);
}

.timer-badge-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 0.5rem;
  cursor: pointer;
  padding: 0.35rem 1.1rem;
  border-radius: 10px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  transition: background-color var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
  user-select: none;
}

.timer-badge-container:hover {
  background-color: var(--color-blue-light);
  border-color: rgba(29, 91, 240, 0.3);
  transform: translateY(-1px) scale(1.02);
}

.badge-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-value {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--color-blue);
  transition: color var(--transition-slow);
}

body.mode-shortBreak .badge-value {
  color: var(--color-green);
}

/* Custom styling for concentration level dropdown opening downwards below circular badge */
.level-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  width: 220px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  padding: 6px;
  z-index: 2000; /* Ensure overlay floats on top of everything else */
  margin-top: 4px;
  cursor: default;
  animation: slideDown 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.level-dropdown-item {
  background: transparent;
  border: none;
  color: var(--text-main);
  padding: 0.6rem 0.8rem;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-radius: 8px;
  cursor: pointer;
  width: 100%;
  transition: background-color var(--transition-fast);
}

.level-dropdown-item:hover {
  background-color: var(--bg-secondary);
}

.level-item-title {
  font-size: 0.88rem;
  font-weight: 700;
}

.level-item-times {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-feature-settings: "tnum";
}

.level-dropdown-item.active {
  background-color: var(--color-blue-light);
  color: var(--color-blue);
}

.level-dropdown-item.active .level-item-times {
  color: var(--color-blue);
  opacity: 0.85;
}

/* Play CTA Button */
.timer-control-row {
  margin-bottom: 1.8rem;
}

.btn-primary {
  background-color: var(--color-blue);
  color: #ffffff;
  border: none;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.8px;
  padding: 0.8rem 4.5rem;
  border-radius: 999px; /* Absolute circular round caps */
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(29, 91, 240, 0.25);
  transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

body.mode-shortBreak .btn-primary {
  background-color: var(--color-green);
  box-shadow: 0 4px 18px rgba(16, 185, 129, 0.25);
}
body.mode-shortBreak .btn-primary:hover {
  background-color: var(--color-green-hover);
}

.btn-primary:hover {
  background-color: var(--color-blue-hover);
  transform: translateY(-2px);
}
.btn-primary:active {
  transform: translateY(0);
}

.active-focus-bar {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background-color: var(--bg-secondary);
  padding: 0.4rem 1.2rem;
  border-radius: 99px;
  border: 1px solid var(--border-color);
}

.active-focus-bar .bullet {
  color: var(--color-blue);
  animation: pulse 2s infinite;
}

/* ==========================================================================
   RIGHT SIDE: TASKS SIDEBAR (MOCK-UP STYLING)
   ========================================================================== */

.right-column {
  flex: 35; /* Takes 35% width */
  background-color: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  padding: 2.2rem 1.8rem;
  overflow-y: auto;
}

.tasks-area-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  max-width: 320px;
  margin: 0 auto;
}

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

.tasks-tabs-nav {
  display: flex;
  gap: 1.1rem;
}

.tasks-tabactive {
  background: transparent;
  border: none;
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.4px;
  color: var(--text-muted);
  cursor: pointer;
  padding-bottom: 4px;
  position: relative;
  transition: color var(--transition-fast);
}

.tasks-tabactive:hover {
  color: var(--text-main);
}

.tasks-tabactive.active {
  color: var(--text-main);
}

.tasks-tabactive.active::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--color-blue);
  border-radius: 99px;
}

.tasks-tabactive .tasks-count-badge {
  font-size: 1.2rem;
  font-weight: 500;
  margin-left: 2px;
}

.tasks-dropdown-container {
  position: relative;
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}
.btn-icon:hover {
  background-color: var(--border-color);
  color: var(--text-main);
}

.tasks-dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  width: 210px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  padding: 6px;
  z-index: 100;
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.tasks-dropdown-menu.show {
  opacity: 1;
  transform: translateY(4px);
  pointer-events: auto;
}

.dropdown-item {
  background: transparent;
  border: none;
  color: var(--text-main);
  padding: 0.55rem 0.75rem;
  font-size: 0.85rem;
  font-weight: 500;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
  background-color: var(--bg-secondary);
}

/* Tasks cards list */
.tasks-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.task-item {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 1.1rem;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.task-item:hover {
  transform: translateY(-1px);
  border-color: #cbd5e1;
  box-shadow: var(--shadow-md);
}

.task-item.active {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 1px var(--color-blue), var(--shadow-md);
}

.task-item.completed {
  opacity: 0.65;
}

.task-item-left {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex: 1;
}

.checkbox-custom {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid #cbd5e1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.checkbox-custom:hover {
  border-color: var(--text-muted);
}

.task-item.completed .checkbox-custom {
  background-color: var(--color-green);
  border-color: var(--color-green);
}

.check-icon {
  width: 10px;
  height: 10px;
  color: white;
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  transition: stroke-dashoffset 0.2s ease-in;
}

.task-item.completed .check-icon {
  stroke-dashoffset: 0;
}

.task-item-details {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.task-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-main);
}

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

.task-notes {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.task-item-right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.task-counter {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  background-color: var(--bg-secondary);
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  font-feature-settings: "tnum";
}

.btn-task-action {
  background: transparent;
  border: none;
  color: var(--text-dimmed);
  width: 26px;
  height: 26px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.btn-task-action:hover {
  background-color: var(--bg-secondary);
  color: var(--text-main);
}

/* ==========================================================================
   DOTTED ADD TASK TRIGGER CARD (EXACT MOCK-UP LOOK)
   ========================================================================== */

.btn-add-task-card {
  width: 100%;
  background-color: var(--bg-primary);
  border: 2px dashed #cbd5e1;
  border-radius: 12px;
  padding: 1.4rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-add-task-card:hover {
  background-color: var(--bg-secondary);
  border-color: var(--text-muted);
  box-shadow: var(--shadow-sm);
}

.add-icon {
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1;
  color: var(--text-muted);
}

.add-text {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  text-align: center;
}

/* Adding task form styling matching light sidebar */
.task-form-container {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.1rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  animation: slideDown 0.2s ease-out;
}

.task-form-container.hidden {
  display: none;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group input[type="text"],
.form-group textarea {
  width: 100%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: 8px;
  padding: 0.55rem 0.75rem;
  font-size: 0.88rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-group input[type="text"]::placeholder,
.form-group textarea::placeholder {
  color: var(--text-dimmed);
}

.form-group input[type="text"]:focus,
.form-group textarea:focus {
  border-color: #94a3b8;
  background-color: var(--bg-primary);
}

.form-row {
  display: flex;
}

.form-group-inline {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.form-group-inline label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.number-input-container {
  display: flex;
  align-items: center;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  width: 100px;
}

.number-input-container input {
  width: 36px;
  border: none;
  background: transparent;
  color: var(--text-main);
  text-align: center;
  font-size: 0.88rem;
  font-weight: 700;
  outline: none;
  -moz-appearance: textfield;
}

.number-input-container input::-webkit-outer-spin-button,
.number-input-container input::-webkit-inner-spin-button {
  -webkit-appearance: none;
}

.btn-num-adj {
  background: transparent;
  border: none;
  color: var(--text-muted);
  width: 32px;
  height: 30px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}
.btn-num-adj:hover {
  background-color: var(--border-color);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 0.7rem;
}

.btn-text-secondary {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}
.btn-text-secondary:hover {
  color: var(--text-main);
  background-color: var(--bg-secondary);
}

.btn-filled-primary {
  background-color: var(--color-blue);
  color: #ffffff;
  border: none;
  padding: 0.45rem 1.1rem;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}
.btn-filled-primary:hover {
  background-color: var(--color-blue-hover);
}

/* ==========================================================================
   FIXED BOTTOM MEDIA BAR (STICKY ROW)
   ========================================================================== */

.media-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100vw;
  height: 56px;
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 1.8rem;
  z-index: 1000;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.03);
}

.media-bar-left {
  display: flex;
  align-items: center;
  gap: 1.1rem; /* Generous gap to completely avoid accidental clicks */
}

.media-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.media-btn:hover {
  background-color: var(--bg-secondary);
  color: var(--text-main);
}

/* Premium central stand-out play/pause button style */
.btn-media-main {
  width: 42px !important;
  height: 42px !important;
  border-radius: 50% !important;
  background-color: var(--color-blue) !important;
  color: #ffffff !important;
  box-shadow: 0 3px 10px rgba(29, 91, 240, 0.2);
  transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast) !important;
}

.btn-media-main:hover {
  background-color: var(--color-blue-hover) !important;
  color: #ffffff !important;
  transform: scale(1.08);
  box-shadow: 0 4px 14px rgba(29, 91, 240, 0.35);
}

.btn-media-main:active {
  transform: scale(0.94);
}

/* Speaker Volume custom range alignment */
.media-volume-control {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background-color: var(--bg-secondary);
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  height: 32px;
}

.media-volume-control .media-btn {
  width: 24px;
  height: 24px;
  font-size: 0.8rem;
}

.media-volume-control input[type="range"] {
  width: 90px;
  -webkit-appearance: none;
  background-color: #cbd5e1;
  height: 4px;
  border-radius: 2px;
  outline: none;
}

.media-volume-control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--color-blue);
  cursor: pointer;
  border: 2px solid white;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

.media-track-container {
  position: relative;
  border-left: 1.5px solid var(--border-color);
  padding-left: 0.6rem;
  display: flex;
  align-items: center;
}

.media-track-btn {
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  cursor: pointer;
  padding: 0.35rem 0.65rem;
  border-radius: 8px;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.media-track-btn:hover {
  background-color: var(--bg-secondary);
}

.media-track-btn:active {
  transform: scale(0.97);
}

.media-track-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  user-select: none;
  transition: color var(--transition-fast);
}

.media-track-btn:hover .media-track-title {
  color: var(--text-main);
}

.dropdown-arrow {
  font-size: 0.6rem;
  color: var(--text-muted);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.media-track-btn:hover .dropdown-arrow {
  color: var(--text-main);
  transform: translateY(-1px);
}

.media-dropdown-menu {
  position: absolute;
  bottom: 100%; /* Opens upwards */
  left: 0.6rem;
  width: 210px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  padding: 6px;
  z-index: 1010;
  margin-bottom: 8px; /* Gap from the bottom media bar */
  animation: slideUp 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.sound-dropdown-item {
  background: transparent;
  border: none;
  color: var(--text-main);
  padding: 0.55rem 0.75rem;
  font-size: 0.85rem;
  font-weight: 500;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 6px;
  cursor: pointer;
  width: 100%;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.sound-dropdown-item:hover {
  background-color: var(--bg-secondary);
}

.sound-dropdown-item.active {
  color: var(--color-blue);
  background-color: var(--color-blue-light);
  font-weight: 700;
}

.media-bar-right {
  display: flex;
  align-items: center;
}

/* ==========================================================================
   MODAL WINDOWS (LIGHT THEME SPECIFIC)
   ========================================================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.3);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2000;
  transition: opacity var(--transition-normal);
  padding: 1rem;
}

.modal-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.modal-box {
  width: 100%;
  max-width: 440px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 4rem);
  transform: scale(0.95);
  opacity: 0;
  transition: all var(--transition-normal);
}

.modal-overlay:not(.hidden) .modal-box {
  transform: scale(1);
  opacity: 1;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 1.4rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.modal-body {
  padding: 1.2rem 1.4rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.modal-footer {
  padding: 1rem 1.4rem;
  border-top: 1px solid var(--border-color);
}

.full-width {
  width: 100%;
  padding: 0.65rem;
  font-size: 0.95rem;
}

/* Settings Sections */
.settings-section {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.settings-section h4 {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.6px;
  border-bottom: 1px dashed var(--border-color);
  padding-bottom: 4px;
}

.times-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.settings-input-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.settings-input-group label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
}

.settings-input-group input,
.inline-number-input {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: 8px;
  padding: 0.45rem;
  font-size: 0.88rem;
  font-weight: 700;
  outline: none;
  text-align: center;
  transition: border-color var(--transition-fast);
}

.settings-input-group input:focus,
.inline-number-input:focus {
  border-color: #94a3b8;
}

.settings-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.15rem 0;
}

.settings-row label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.inline-number-input {
  width: 50px;
  padding: 3px 5px;
  border-radius: 6px;
}

/* Select inputs */
.select-premium {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.45rem 1.5rem 0.45rem 0.6rem;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 12px;
  min-width: 140px;
  transition: border var(--transition-fast);
}
.select-premium:focus {
  border-color: #94a3b8;
}

/* Switches and Toggles */
.switch {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #cbd5e1;
  transition: .2s ease;
  border: 1px solid transparent;
}

.slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 2px;
  bottom: 2px;
  background-color: white;
  transition: .2s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

input:checked + .slider {
  background-color: var(--color-blue);
}

input:checked + .slider:before {
  transform: translateX(18px);
}

.slider.round {
  border-radius: 22px;
}

.slider.round:before {
  border-radius: 50%;
}

.volume-row {
  flex-direction: column;
  align-items: stretch;
  gap: 0.35rem;
}

.volume-slider-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--bg-secondary);
  padding: 0.35rem 0.55rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.volume-icon {
  font-size: 0.85rem;
}

.volume-slider-container span:last-child {
  font-size: 0.72rem;
  font-weight: 700;
  width: 30px;
  text-align: right;
  color: var(--text-muted);
}

/* Custom range volume for alarm settings */
.volume-slider-container input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  background-color: #cbd5e1;
  height: 4px;
  border-radius: 2px;
  outline: none;
}

.volume-slider-container input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--color-blue);
  cursor: pointer;
  border: 2px solid white;
}

.btn-inline-secondary {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.35rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}
.btn-inline-secondary:hover {
  background-color: var(--border-color);
}

.status-indicator {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  background-color: var(--bg-secondary);
  color: var(--text-muted);
}

.status-indicator.granted {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-green);
}

.status-indicator.denied {
  background-color: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

/* ==========================================================================
   REPORTES STATS MODAL CARDS
   ========================================================================== */

.stats-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
}

.stat-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 0.8rem 0.4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.stat-value {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-blue);
}

.stat-label {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.progress-bar-container {
  background-color: var(--border-color);
  height: 8px;
  border-radius: 4px;
  overflow: hidden;
  margin-top: 0.2rem;
}

.progress-bar-fill {
  height: 100%;
  background-color: var(--color-green);
  border-radius: 4px;
  transition: width 0.5s ease-out;
}

.progress-percentage-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
}

.activity-log {
  list-style: none;
  max-height: 140px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  background-color: var(--bg-secondary);
  padding: 0.55rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.activity-log li {
  font-size: 0.76rem;
  display: flex;
  justify-content: space-between;
  padding: 0.15rem 0;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
}
.activity-log li:last-child {
  border-bottom: none;
}

.empty-log-msg {
  color: var(--text-dimmed);
  text-align: center;
  padding: 0.4rem 0;
  font-style: italic;
  justify-content: center !important;
}

/* ==========================================================================
   ANIMATIONS & KEYFRAMES
   ========================================================================== */

@keyframes pulse {
  0% { opacity: 0.5; }
  50% { opacity: 1; }
  100% { opacity: 0.5; }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */

@media (max-width: 820px) {
  .split-layout {
    flex-direction: column;
    overflow-y: auto;
  }
  
  .left-column {
    flex: none;
    width: 100%;
    padding: 1.5rem 1rem;
  }
  
  .right-column {
    flex: none;
    width: 100%;
    border-left: none;
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 1rem 3rem 1rem;
  }
  
  .tasks-area-wrapper {
    max-width: 460px;
  }
  
  .app-header {
    padding: 0.6rem 1.2rem;
  }
  
  .btn-label {
    display: none; /* Hide button text on small screens, show icons only */
  }
  
  .media-track-title {
    display: none; /* Hide track title to save horizontal space on mobile */
  }
  
  .media-bar {
    padding: 0 1rem;
  }
  
  @media (max-width: 480px) {
    .media-bar-left {
      gap: 0.6rem !important; /* Slightly tighter on extra small mobile screens to prevent overflow */
    }
    .media-volume-control input[type="range"] {
      width: 55px !important; /* Shorter slider width on narrow phones */
    }
  }
  
  .timer-circle {
    width: 280px;
    height: 280px;
  }
  
  .timer-display {
    font-size: 4.8rem;
  }
}

/* ==========================================================================
   STUDY CHALLENGES CLASSROOM DESIGN
   ========================================================================== */

#trigger-challenge-modal {
  cursor: pointer;
  display: inline-block;
  transition: color var(--transition-fast), transform var(--transition-fast), text-decoration var(--transition-fast);
}

#trigger-challenge-modal:hover {
  color: var(--color-blue);
  text-decoration: underline;
  transform: translateY(-1px) scale(1.02);
}

.challenge-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.challenge-card:hover {
  transform: translateY(-1px);
  border-color: #cbd5e1;
  box-shadow: var(--shadow-md);
}

.challenge-card.active {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 1px var(--color-blue), var(--shadow-md);
}

.challenge-card.completed {
  border-color: var(--color-green);
  background-color: rgba(16, 185, 129, 0.02);
}

.challenge-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.8rem;
}

.challenge-card-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
}

.challenge-status-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.55rem;
  border-radius: 6px;
  background-color: var(--bg-secondary);
  color: var(--text-muted);
  white-space: nowrap;
}

.challenge-status-badge.active {
  background-color: var(--color-blue-light);
  color: var(--color-blue);
}

.challenge-status-badge.completed {
  background-color: rgba(16, 185, 129, 0.12);
  color: var(--color-green);
  box-shadow: 0 0 6px rgba(16, 185, 129, 0.2);
}

.challenge-card-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.challenge-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.2rem;
  gap: 0.8rem;
}

.challenge-progress-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.challenge-progress-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
}

.challenge-bar-bg {
  background-color: var(--border-color);
  height: 6px;
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}

.challenge-bar-fill {
  background-color: var(--color-blue);
  height: 100%;
  border-radius: 3px;
  transition: width 0.4s ease-out;
}

.challenge-card.completed .challenge-bar-fill {
  background-color: var(--color-green);
}

.btn-challenge-accept {
  background-color: var(--color-blue);
  color: white;
  border: none;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.btn-challenge-accept:hover {
  background-color: var(--color-blue-hover);
}

/* ==========================================================================
   STATS MODAL: CHALLENGES & BADGES STYLING
   ========================================================================== */

.stats-challenges-grid {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  background-color: var(--bg-secondary);
  padding: 0.6rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.stat-challenge-badge-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.65rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.stat-challenge-badge-row:hover {
  border-color: #cbd5e1;
  transform: translateY(-0.5px);
}

.stat-challenge-badge-row.completed {
  border-color: rgba(16, 185, 129, 0.25);
  background-color: rgba(16, 185, 129, 0.01);
}

.sc-badge-left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.sc-badge-icon {
  font-size: 1.15rem;
  user-select: none;
}

.sc-badge-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.sc-badge-name {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-main);
}

.sc-badge-detail {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.sc-badge-pct {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--color-blue);
}

.stat-challenge-badge-row.completed .sc-badge-pct {
  color: var(--color-green);
}

/* ==========================================================================
   RETOS Y MEDALLAS INFO PANEL IN SETTINGS
   ========================================================================== */
.settings-medals-info {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-top: 0.7rem;
  padding: 0.85rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
}

.medal-info-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  transition: transform var(--transition-fast);
}

.medal-info-item:hover {
  transform: translateX(2px);
}

.medal-info-badge {
  font-size: 1.3rem;
  line-height: 1;
  user-select: none;
}

.medal-info-content {
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--text-muted);
}

.medal-info-content strong {
  color: var(--text-main);
  display: block;
  font-weight: 700;
  margin-bottom: 0.1rem;
}

/* ==========================================================================
   COMPLETED TASKS DATE COLLAPSIBLE ACCORDION GROUPS
   ========================================================================== */
.completed-group-wrapper {
  margin-bottom: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  background-color: var(--bg-primary);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.completed-group-wrapper:hover {
  border-color: rgba(29, 91, 240, 0.25);
  box-shadow: var(--shadow-md);
}

body.dark-theme .completed-group-wrapper:hover {
  border-color: rgba(59, 130, 246, 0.35);
}

.completed-group-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.8rem 1.1rem;
  background-color: var(--bg-secondary);
  border: none;
  cursor: pointer;
  outline: none;
  font-family: inherit;
  font-weight: 700;
  text-align: left;
  user-select: none;
}

.group-title-left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.group-arrow {
  font-size: 0.65rem;
  color: var(--text-muted);
  transition: transform var(--transition-normal);
}

.completed-group-wrapper.collapsed .group-arrow {
  transform: rotate(-90deg);
}

.group-date-text {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.group-count-badge {
  font-size: 0.72rem;
  color: var(--color-blue);
  background-color: var(--color-blue-light);
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-weight: 700;
}

body.mode-shortBreak .group-count-badge {
  color: var(--color-green);
  background-color: rgba(16, 185, 129, 0.12);
}

body.mode-longBreak .group-count-badge {
  color: var(--color-blue);
  background-color: rgba(29, 91, 240, 0.12);
}

.completed-group-content {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border-color);
  max-height: 1500px;
  opacity: 1;
  overflow: hidden;
  transition: max-height var(--transition-slow), opacity var(--transition-normal);
}

.completed-group-wrapper.collapsed .completed-group-content {
  max-height: 0;
  opacity: 0;
  border-top: none;
  pointer-events: none;
}

/* Language selector dropdown style enhancements */
.lang-selector-container {
  position: relative;
}

.lang-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  width: 150px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  padding: 6px;
  z-index: 2000;
  margin-top: 6px;
  cursor: default;
  animation: slideDown 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.lang-dropdown.hidden {
  display: none !important;
}

.lang-dropdown-item {
  background: transparent;
  border: none;
  color: var(--text-main);
  padding: 0.55rem 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: left;
  border-radius: 6px;
  cursor: pointer;
  width: 100%;
  font-family: inherit;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.lang-dropdown-item:hover {
  background-color: var(--bg-secondary);
  color: var(--text-main);
}

.lang-dropdown-item.active {
  background-color: var(--color-blue-light);
  color: var(--color-blue);
  font-weight: 700;
}

/* Dark mode overrides for active language dropdown item */
.dark-theme .lang-dropdown-item.active {
  background-color: rgba(29, 91, 240, 0.25);
  color: #38bdf8;
}