@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
  --bg-dark: #090d16;
  --bg-darker: #04060b;
  --bg-card: rgba(17, 24, 39, 0.55);
  --bg-input: rgba(15, 23, 42, 0.6);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.4);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --color-primary: #6366f1; /* Indigo */
  --color-primary-glow: rgba(99, 102, 241, 0.15);
  --color-accent-cyan: #06b6d4;
  --color-accent-violet: #8b5cf6;
  --color-accent-emerald: #10b981;
  --color-accent-rose: #f43f5e;
  --color-accent-amber: #f59e0b;
  
  --gradient-main: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);
  --gradient-card: linear-gradient(145deg, rgba(30, 41, 59, 0.45) 0%, rgba(15, 23, 42, 0.55) 100%);
  
  --shadow-sm: 0 2px 8px -1px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 30px -4px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px 0px rgba(99, 102, 241, 0.3);
  
  --font-display: 'Outfit', sans-serif;
  --font-sans: 'Plus Jakarta Sans', sans-serif;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius-sm: 8px;
  --border-radius-md: 14px;
  --border-radius-lg: 20px;
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-darker);
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.1) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(6, 182, 212, 0.1) 0px, transparent 50%),
    radial-gradient(at 50% 100%, rgba(139, 92, 246, 0.08) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-darker);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Glass Card */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
}

/* Header & Navigation */
header {
  border-bottom: 1px solid var(--border-color);
  background: rgba(9, 13, 22, 0.8);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 1rem 2rem;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.logo span {
  font-size: 1.2rem;
  padding: 0.2rem 0.5rem;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--border-radius-sm);
  color: var(--color-primary);
  -webkit-text-fill-color: var(--color-primary);
}

.nav-tabs {
  display: flex;
  gap: 0.5rem;
}

.tab-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.tab-btn.active {
  color: var(--text-primary);
  background: rgba(99, 102, 241, 0.15);
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.1);
}

/* Layout Main */
main {
  max-width: 1400px;
  margin: 2rem auto;
  padding: 0 2rem;
}

.tab-content {
  display: none;
  animation: fadeIn var(--transition-normal);
}

.tab-content.active {
  display: block;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-weight: 600;
  padding: 0.6rem 1.2rem;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  text-decoration: none;
  outline: none;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: #4f46e5;
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-color);
  color: var(--text-primary);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-danger {
  background: rgba(244, 63, 94, 0.1);
  border: 1px solid rgba(244, 63, 94, 0.3);
  color: var(--color-accent-rose);
}
.btn-danger:hover {
  background: var(--color-accent-rose);
  color: #fff;
  box-shadow: 0 0 15px rgba(244, 63, 94, 0.3);
}

.btn-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--color-accent-emerald);
}
.btn-success:hover {
  background: var(--color-accent-emerald);
  color: #fff;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.3);
}

.btn-small {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  border-radius: var(--border-radius-sm);
}

/* Inputs and Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
}

.input-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  outline: none;
  transition: all var(--transition-fast);
}

.input-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.input-control::placeholder {
  color: var(--text-muted);
}

/* Grid Layouts */
.admin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

@media (max-width: 992px) {
  .admin-grid {
    grid-template-columns: 1fr;
  }
}

/* Section Header */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}

.section-header h2 {
  font-size: 1.5rem;
  color: var(--text-primary);
}

/* Lists and Cards Manager */
.list-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow-y: visible;
  padding-right: 0.5rem;
}

.item-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  padding: 0.75rem 1.25rem;
  border-radius: var(--border-radius-md);
  transition: background var(--transition-fast);
}

.item-row:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.15);
}

.item-info {
  display: flex;
  flex-direction: column;
}

.item-title {
  font-weight: 600;
  color: var(--text-primary);
}

.item-subtitle {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.item-actions {
  display: flex;
  gap: 0.5rem;
}

/* Setup Collapsible Categories */
.category-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  margin-bottom: 1rem;
  overflow: hidden;
  transition: border-color var(--transition-normal);
}

.category-card.collapsed {
  border-color: rgba(255, 255, 255, 0.04);
}

.category-card.collapsed .questions-list {
  display: none;
}

.category-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  user-select: none;
  transition: background var(--transition-fast);
}

.category-header:hover {
  background: rgba(255, 255, 255, 0.06);
}

.category-name {
  font-weight: 700;
  font-family: var(--font-display);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.category-header .toggle-chevron {
  transition: transform 0.2s ease;
}

.category-card.collapsed .toggle-chevron {
  transform: rotate(-90deg);
}

.category-badge {
  font-size: 0.8rem;
  padding: 0.1rem 0.4rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  color: var(--text-secondary);
}

.questions-list {
  padding: 1rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: rgba(0, 0, 0, 0.1);
}

.question-item {
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 0.75rem;
}

.question-text {
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.question-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.question-answer {
  color: var(--color-accent-emerald);
  font-weight: 500;
}

.question-pts {
  background: rgba(99, 102, 241, 0.2);
  color: var(--color-primary);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  font-weight: 600;
}

/* File Upload Manager Area */
.upload-dropzone {
  border: 2px dashed rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem;
  text-align: center;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.01);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.upload-dropzone:hover, .upload-dropzone.dragover {
  border-color: var(--color-primary);
  background: rgba(99, 102, 241, 0.05);
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.1);
}

.upload-icon {
  font-size: 2.5rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.upload-dropzone:hover .upload-icon {
  color: var(--color-primary);
}

/* Game Admin Control Scoring Area */
.game-controls-container {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 2rem;
}

@media (max-width: 992px) {
  .game-controls-container {
    grid-template-columns: 1fr;
  }
}

.question-selector-panel {
  max-height: 650px;
  overflow-y: auto;
}

.qa-select-item {
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
  margin-bottom: 0.5rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.qa-select-item:hover {
  background: rgba(255, 255, 255, 0.06);
}

.qa-select-item.active {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--color-primary);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.1);
}

.qa-select-item .qa-title {
  font-weight: 700;
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.qa-select-item .qa-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Completed/Asked Questions Styling */
.qa-select-item.asked {
  border-color: rgba(16, 185, 129, 0.25) !important;
  background: rgba(16, 185, 129, 0.05) !important;
  opacity: 0.8;
}

.qa-select-item.asked.active {
  border-color: var(--color-accent-emerald) !important;
  background: rgba(16, 185, 129, 0.12) !important;
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.25) !important;
}

.qa-select-item.asked .qa-title {
  color: var(--text-secondary) !important;
  text-decoration: line-through;
  opacity: 0.65;
}

.qa-select-item.asked .qa-desc {
  color: var(--color-accent-emerald) !important;
  opacity: 0.85;
}

.question-item.asked {
  border-color: rgba(16, 185, 129, 0.25) !important;
  background: rgba(16, 185, 129, 0.05) !important;
}

.question-item.asked .question-text {
  text-decoration: line-through;
  color: var(--text-secondary);
  opacity: 0.65;
}

.question-item.asked .question-answer {
  opacity: 0.85;
}

/* Active Question Area */
.active-question-card {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.6) 0%, rgba(15, 23, 42, 0.8) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
}

.active-question-tag {
  font-size: 0.8rem;
  color: var(--color-accent-cyan);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.active-question-text {
  font-size: 1.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.4;
}

.active-question-answer-reveal {
  background: rgba(16, 185, 129, 0.1);
  border: 1px dashed rgba(16, 185, 129, 0.3);
  padding: 1rem;
  border-radius: var(--border-radius-md);
  margin-top: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.active-question-answer-reveal span {
  font-weight: 700;
  color: var(--color-accent-emerald);
}

/* Scoring Matrix Table */
.scores-matrix-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.scores-matrix-table th, .scores-matrix-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.scores-matrix-table th {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.scores-matrix-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.team-score-controller {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.score-badge {
  display: inline-block;
  min-width: 40px;
  text-align: center;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  padding: 0.2rem 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 6px;
}

.score-badge.positive {
  color: var(--color-accent-emerald);
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.2);
}

/* File Table Details */
.file-table {
  width: 100%;
  border-collapse: collapse;
}

.file-table th, .file-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}

.file-table th {
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-weight: 700;
}

.file-link {
  color: var(--color-accent-cyan);
  text-decoration: none;
  font-weight: 600;
}

.file-link:hover {
  text-decoration: underline;
}

/* Leaderboard Page (Players) */
.leaderboard-container {
  max-width: 800px;
  margin: 0 auto;
}

.leaderboard-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 2rem;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.leaderboard-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.leaderboard-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border-radius: var(--border-radius-lg);
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.leaderboard-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: transparent;
  transition: background var(--transition-normal);
}

.leaderboard-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: rgba(255, 255, 255, 0.15);
}

/* Podium Colors for top ranks */
.leaderboard-item.rank-1 {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(15, 23, 42, 0.6) 100%);
  border-color: rgba(245, 158, 11, 0.3);
}
.leaderboard-item.rank-1::before {
  background: var(--color-accent-amber);
}

.leaderboard-item.rank-2 {
  background: linear-gradient(135deg, rgba(226, 232, 240, 0.08) 0%, rgba(15, 23, 42, 0.6) 100%);
  border-color: rgba(226, 232, 240, 0.2);
}
.leaderboard-item.rank-2::before {
  background: #cbd5e1;
}

.leaderboard-item.rank-3 {
  background: linear-gradient(135deg, rgba(180, 83, 9, 0.08) 0%, rgba(15, 23, 42, 0.6) 100%);
  border-color: rgba(180, 83, 9, 0.2);
}
.leaderboard-item.rank-3::before {
  background: #b45309;
}

.rank-details {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.rank-number {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
}

.rank-1 .rank-number {
  background: var(--color-accent-amber);
  color: var(--bg-darker);
}
.rank-2 .rank-number {
  background: #cbd5e1;
  color: var(--bg-darker);
}
.rank-3 .rank-number {
  background: #b45309;
  color: var(--bg-darker);
}

.rank-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.rank-points {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* File Entry Form (Player Page) */
.player-file-lookup {
  max-width: 500px;
  margin: 3rem auto 0 auto;
  text-align: center;
}

.player-file-lookup h3 {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.lookup-form-row {
  display: flex;
  gap: 0.5rem;
}

/* Modal Popup Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

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

.modal-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  width: 90%;
  max-width: 500px;
  text-align: center;
  transform: translateY(20px);
  transition: transform var(--transition-normal);
  box-shadow: var(--shadow-md);
}

.modal-overlay.active .modal-container {
  transform: translateY(0);
}

.modal-title {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.modal-close-btn {
  margin-top: 1.5rem;
}

/* QR Code Container Styling */
.qr-container {
  background: #fff;
  padding: 1.5rem;
  border-radius: var(--border-radius-md);
  display: inline-block;
  margin: 1rem 0;
}

.qr-code-img {
  width: 200px;
  height: 200px;
  display: block;
}

/* File Viewer Area (Player Portal) */
.file-viewer-card {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.file-viewer-title {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  word-break: break-all;
}

.file-viewer-content {
  margin: 1.5rem 0;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.file-viewer-img {
  max-width: 100%;
  max-height: 450px;
  display: block;
  margin: 0 auto;
}

.file-viewer-audio {
  width: 80%;
  margin: 2rem auto;
}

.file-viewer-fallback {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.file-viewer-fallback-icon {
  font-size: 3rem;
  color: var(--text-secondary);
}

/* Toast System */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--border-color);
  padding: 0.75rem 1.25rem;
  border-radius: var(--border-radius-md);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-md);
  animation: slideIn 0.25s cubic-bezier(0, 0, 0.2, 1) forwards;
}

.toast.success {
  border-left: 4px solid var(--color-accent-emerald);
}

.toast.error {
  border-left: 4px solid var(--color-accent-rose);
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Spinner helper */
.spinner {
  border: 3px solid rgba(255, 255, 255, 0.1);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border-left-color: var(--color-primary);
  animation: spin 1s linear infinite;
  display: inline-block;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.text-center {
  text-align: center;
}

.mt-2 {
  margin-top: 1rem;
}
.mb-2 {
  margin-bottom: 2rem;
}

.flex {
  display: flex;
}
.gap-1 {
  gap: 0.5rem;
}
.flex-column {
  flex-direction: column;
}

/* Stopwatch Widget */
.stopwatch-widget {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 0.5rem 1rem;
  backdrop-filter: blur(6px);
}

.stopwatch-display {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  min-width: 70px;
  text-align: center;
  transition: color var(--transition-fast);
}

.stopwatch-display.running {
  color: var(--color-accent-emerald);
  animation: sw-pulse 1s ease-in-out infinite;
}

@keyframes sw-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.65; }
}

.stopwatch-controls {
  display: flex;
  gap: 0.35rem;
}

@media (max-width: 900px) {
  .stopwatch-widget {
    padding: 0.4rem 0.6rem;
  }
  .stopwatch-display {
    font-size: 1.2rem;
    min-width: 56px;
  }
}