/* ══════════════════════════════════════════════════════════════
   VN Address Intelligence — Linear Design System
   Inspired by linear.app: ultra-dark, minimal, premium
   ══════════════════════════════════════════════════════════════ */

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

/* ── Design Tokens ── */
:root {
  --bg-app: #0a0a0b;
  --bg-sidebar: #111113;
  --bg-surface: #161618;
  --bg-elevated: #1c1c1f;
  --bg-hover: #222225;
  --bg-active: #2a2a2d;

  --border-subtle: rgba(255,255,255,0.06);
  --border-default: rgba(255,255,255,0.08);
  --border-focus: rgba(99,102,241,0.5);

  --text-primary: #ededef;
  --text-secondary: #8b8b8e;
  --text-tertiary: #5c5c5f;
  --text-accent: #818cf8;

  --accent: #818cf8;
  --accent-hover: #6366f1;
  --accent-glow: rgba(99,102,241,0.15);

  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --info: #60a5fa;

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 20px var(--accent-glow);

  --transition: 150ms cubic-bezier(0.4,0,0.2,1);
  --sidebar-width: 240px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-app);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

/* ── Layout ── */
.app-container {
  display: flex;
  height: 100vh;
  width: 100vw;
}

/* ══════════════════════════════════════════
   SIDEBAR
   ══════════════════════════════════════════ */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  padding: 16px 12px;
  flex-shrink: 0;
  z-index: 100;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 8px 24px;
}

.logo-icon {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, #818cf8, #6366f1);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.logo-area h1 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--text-primary);
}
.logo-area h1 span {
  color: var(--text-tertiary);
  font-size: 11px;
  font-weight: 500;
  margin-left: 4px;
}

/* Nav sections */
.nav-section {
  margin-bottom: 24px;
}
.nav-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-tertiary);
  padding: 0 8px 8px;
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
  position: relative;
}
.nav-item i, .nav-item svg {
  width: 16px; height: 16px;
  text-align: center;
  font-size: 13px;
  opacity: 0.6;
  flex-shrink: 0;
}
.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.nav-item:hover i { opacity: 1; }
.nav-item.active {
  background: var(--bg-active);
  color: var(--text-primary);
  border-color: var(--border-default);
}
.nav-item.active i { opacity: 1; color: var(--accent); }

.nav-item .badge-count {
  margin-left: auto;
  font-size: 11px;
  background: var(--bg-elevated);
  padding: 2px 6px;
  border-radius: 10px;
  color: var(--text-secondary);
  font-weight: 500;
}

.nav-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 12px 8px;
}

.sidebar-footer {
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
}
.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
}
.dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--success);
  flex-shrink: 0;
}
.dot.pulse {
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(52,211,153,0.4); }
  50% { box-shadow: 0 0 0 5px rgba(52,211,153,0); }
}

/* ══════════════════════════════════════════
   MAIN CONTENT
   ══════════════════════════════════════════ */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-app);
}

/* Top Header */
.top-header {
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
  background: rgba(10,10,11,0.8);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 80;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.page-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-left: 0;
  transition: margin var(--transition);
}
.page-breadcrumb {
  font-size: 12px;
  color: var(--text-tertiary);
}

.search-bar {
  position: relative;
}
.search-bar input {
  width: 320px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  padding: 6px 12px 6px 32px;
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  transition: all var(--transition);
}
.search-bar input::placeholder { color: var(--text-tertiary); }
.search-bar input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.search-bar::before {
  content: '\f002';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  font-size: 12px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}
.header-btn {
  width: 32px; height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  transition: all var(--transition);
}
.header-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.avatar {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, #818cf8, #6366f1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  color: white;
  margin-left: 8px;
}

/* ── Page Content Area ── */
#page-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}
#page-content::-webkit-scrollbar { width: 6px; }
#page-content::-webkit-scrollbar-track { background: transparent; }
#page-content::-webkit-scrollbar-thumb { background: var(--bg-active); border-radius: 3px; }

/* Pages */
.page { display: none; animation: pageIn 300ms ease; }
.page.active { display: block; }
@keyframes pageIn {
  from { opacity:0; transform: translateY(6px); }
  to { opacity:1; transform: translateY(0); }
}

/* ── Page Header ── */
.page-header {
  margin-bottom: 24px;
}
.page-header h2 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.page-header p {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ══════════════════════════════════════════
   STAT CARDS
   ══════════════════════════════════════════ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-glow), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.stat-card:hover {
  border-color: var(--border-default);
  background: var(--bg-elevated);
}
.stat-card:hover::before { opacity: 1; }

.stat-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.stat-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  line-height: 1.1;
}
.stat-change {
  font-size: 12px;
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 4px;
}
.stat-change.positive { color: var(--success); }
.stat-change.negative { color: var(--danger); }

/* ══════════════════════════════════════════
   CARDS & PANELS
   ══════════════════════════════════════════ */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-subtle);
}
.card-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}
.card-body {
  padding: 18px;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.content-grid.full { grid-template-columns: 1fr; }
.content-grid.triple { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.content-grid.sidebar-layout { grid-template-columns: 2fr 1fr; }

.tool-panel {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.tool-input-section {
  padding: 24px;
  border-right: 1px solid var(--border-subtle);
}
.tool-output-section {
  padding: 24px;
  background: rgba(0,0,0,0.1);
}
.tool-section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

/* ══════════════════════════════════════════
   TABLES
   ══════════════════════════════════════════ */
.table-container {
  overflow-x: auto;
}
table {
  width: 100%;
  border-collapse: collapse;
}
thead th {
  padding: 10px 14px;
  text-align: left;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-app);
  position: sticky;
  top: 0;
  z-index: 1;
}
tbody td {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
}
tbody tr { transition: background var(--transition); }
tbody tr:hover { background: var(--bg-hover); }
tbody tr:hover td { color: var(--text-primary); }

/* ══════════════════════════════════════════
   BADGES
   ══════════════════════════════════════════ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2px;
}
.badge.success { background: rgba(52,211,153,0.12); color: var(--success); }
.badge.warning { background: rgba(251,191,36,0.12); color: var(--warning); }
.badge.danger  { background: rgba(248,113,113,0.12); color: var(--danger); }
.badge.info    { background: rgba(96,165,250,0.12); color: var(--info); }
.badge.accent  { background: var(--accent-glow); color: var(--accent); }
/* Legacy compat */
.badge.done    { background: rgba(52,211,153,0.12); color: var(--success); }
.badge.pending { background: rgba(251,191,36,0.12); color: var(--warning); }

/* ══════════════════════════════════════════
   BUTTONS
   ══════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border-default);
  background: var(--bg-surface);
  color: var(--text-primary);
  transition: all var(--transition);
  cursor: pointer;
}
.btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-focus);
}
.btn i { font-size: 12px; opacity: 0.7; }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  box-shadow: var(--shadow-glow);
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: transparent;
}

/* ══════════════════════════════════════════
   FORM ELEMENTS
   ══════════════════════════════════════════ */
.form-group {
  margin-bottom: 16px;
}
.form-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-input, .form-textarea {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-app);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  transition: all var(--transition);
}
.form-input:focus, .form-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-textarea {
  min-height: 120px;
  resize: vertical;
  font-family: 'SF Mono', 'Consolas', monospace;
  line-height: 1.6;
}

/* ══════════════════════════════════════════
   NER ENTITY HIGHLIGHTING
   ══════════════════════════════════════════ */
.ner-output {
  background: var(--bg-app);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 14px;
  font-size: 14px;
  line-height: 2;
  min-height: 60px;
}

.batch-log {
  background: #000;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;
  font-size: 12px;
  line-height: 1.6;
  color: #a9b1d6;
  height: 250px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

.batch-log::-webkit-scrollbar {
  width: 6px;
}
.batch-log::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
}
.ner-entity {
  display: inline;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 500;
  position: relative;
}
.ner-entity::after {
  content: attr(data-label);
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.5px;
  white-space: nowrap;
  opacity: 0.8;
}
.ner-PCD { background: rgba(240,50,230,0.15); color: #f032e6; }
.ner-BLD { background: rgba(245,130,49,0.15); color: #f58231; }
.ner-POI { background: rgba(145,30,180,0.15); color: #c77dff; }
.ner-ALY { background: rgba(67,99,216,0.15); color: #6d8fff; }
.ner-NUM { background: rgba(230,25,75,0.15); color: #f87171; }
.ner-STR { background: rgba(60,180,75,0.15); color: #34d399; }
.ner-NHB { background: rgba(70,153,144,0.15); color: #5eead4; }
.ner-WDS { background: rgba(255,225,25,0.15); color: #fbbf24; }
.ner-DST { background: rgba(128,0,0,0.15); color: #fb923c; }
.ner-PRO { background: rgba(0,0,117,0.15); color: #60a5fa; }

/* ══════════════════════════════════════════
   TOOL PANEL (Address Parser, etc.)
   ══════════════════════════════════════════ */
.tool-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.tool-input-section, .tool-output-section {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
}
.tool-section-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

/* ══════════════════════════════════════════
   ACTIVITY FEED
   ══════════════════════════════════════════ */
.activity-list {
  list-style: none;
}
.activity-item {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.activity-item:last-child { border-bottom: none; }
.activity-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 5px;
  flex-shrink: 0;
}
.activity-text {
  font-size: 13px;
  color: var(--text-secondary);
}
.activity-time {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 2px;
}

/* ══════════════════════════════════════════
   CHART CONTAINER
   ══════════════════════════════════════════ */
.chart-container {
  position: relative;
  height: 200px;
  margin-top: 8px;
}
.chart-container canvas {
  width: 100% !important;
  height: 100% !important;
}

/* ══════════════════════════════════════════
   MODEL STATUS CARDS
   ══════════════════════════════════════════ */
.model-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: all var(--transition);
}
.model-card:hover {
  border-color: var(--border-default);
}
.model-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.model-icon.phobert { background: rgba(99,102,241,0.12); color: var(--accent); }
.model-icon.mgte    { background: rgba(52,211,153,0.12); color: var(--success); }
.model-icon.llm     { background: rgba(251,191,36,0.12); color: var(--warning); }
.model-icon.ner     { background: rgba(248,113,113,0.12); color: var(--danger); }

.model-info { flex: 1; }
.model-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}
.model-desc {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 2px;
}

/* ══════════════════════════════════════════
   LOADING / SKELETON
   ══════════════════════════════════════════ */
.skeleton {
  background: linear-gradient(90deg, var(--bg-elevated) 25%, var(--bg-hover) 50%, var(--bg-elevated) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ══════════════════════════════════════════
   MOBILE & RESPONSIVE
   ══════════════════════════════════════════ */
.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 20px;
  padding: 8px;
  margin-left: -8px;
  margin-right: 8px;
  cursor: pointer;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 90;
}

@media (max-width: 1024px) {
  .content-grid, .content-grid.sidebar-layout, .content-grid.triple { 
    grid-template-columns: 1fr; 
  }
  .tool-panel { grid-template-columns: 1fr; }
  .tool-input-section { border-right: none; border-bottom: 1px solid var(--border-subtle); }
  .search-bar input { width: 200px; }
}

@media (max-width: 768px) {
  body { overflow-x: hidden; overflow-y: auto; }
  .app-container { height: auto; min-height: 100vh; flex-direction: column; }
  
  .sidebar {
    position: fixed;
    top: 0; left: -280px; bottom: 0;
    width: 280px;
    z-index: 2000; /* Extremely high to be over everything */
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--bg-sidebar);
  }
  
  .sidebar.mobile-active {
    transform: translateX(280px);
  }
  
  .sidebar-overlay {
    z-index: 999;
  }
  
  .sidebar-overlay.mobile-active {
    display: block;
    z-index: 1500;
  }

  .menu-toggle { display: block; z-index: 1600; }
  
  .main-content { 
    width: 100%;
    overflow: visible; 
  }
  
  #page-content { 
    padding: 16px; 
    overflow: visible;
  }
  
  .stats-grid { 
    grid-template-columns: 1fr; 
    gap: 12px; 
  }
  
  .top-header { 
    padding: 0 16px; 
    position: fixed; 
    top: 0; 
    left: 0;
    right: 0;
    width: 100%;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    z-index: 800;
  }
  
  .main-content { padding-top: 52px; }
  
  .page-title { margin-left: 12px; }
  .search-bar { display: none; }
  .page-breadcrumb, .breadcrumb-separator { display: none; }
  
  .card-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .card-header .flex { width: 100%; justify-content: space-between; flex-direction: row !important; }
  
  .tool-panel .flex { flex-direction: column; gap: 8px; }
  .tool-input-section, .tool-output-section { padding: 16px; }
  
  .model-card { flex-direction: column; text-align: center; gap: 12px; padding: 20px; }
  .model-icon { margin: 0 auto; }
  
  .stat-value { font-size: 22px; }
}

/* Specific for extra small phones (iPhone Mini, etc) */
@media (max-width: 480px) {
  .page-header h2 { font-size: 18px; }
  .stat-card { padding: 14px; }
  .btn { width: 100%; justify-content: center; }
  .form-group input, .form-group select, .btn { width: 100% !important; }
  
  .header-actions .header-btn:not([title="Notifications"]) { display: none; }
}

/* ══════════════════════════════════════════
   UTILITY
   ══════════════════════════════════════════ */
.text-mono { font-family: 'SF Mono','Consolas','Monaco',monospace; font-size: 12px; }
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-12 { margin-bottom: 12px; }
.gap-12 { gap: 12px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.hidden { display: none !important; }