/* --- CSS Variables & Design Tokens --- */
:root {
  /* Color Palette (Clean Premium Light Mode Theme) */
  --bg-base: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-solid: #ffffff;
  --bg-surface-hover: #f1f5f9;
  
  --border-color: rgba(15, 23, 42, 0.08);
  --border-hover: rgba(2, 132, 199, 0.4);
  
  /* Accent Colors */
  --primary: #0284c7;       /* Electric Sky Blue */
  --primary-rgb: 2, 132, 199;
  --secondary: #7c3aed;     /* Deep Neon Purple */
  --secondary-rgb: 124, 58, 237;
  --accent: #059669;        /* Emerald Green (Correctness/Feasibility) */
  --accent-rgb: 5, 150, 105;
  --warning: #d97706;       /* Amber Orange (MOQ/Design Quality) */
  --warning-rgb: 217, 119, 6;
  
  /* Text Colors */
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  
  /* Typography */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Transitions & Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Glassmorphism Blur */
  --backdrop-blur: blur(12px);
}

/* --- Base & Reset Rules --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* --- Ambient Background Glows --- */
.glow-bg {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: -1;
  opacity: 0.06;
  transition: all var(--transition-slow);
}

.glow-bg-1 {
  top: -100px;
  right: -100px;
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
}

.glow-bg-2 {
  top: 600px;
  left: -200px;
  background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
}

/* --- Typography Utilities --- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
  line-height: 1.6;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: #38bdf8;
}

.highlight {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.8rem;
  background: rgba(2, 132, 199, 0.08);
  border: 1px solid rgba(2, 132, 199, 0.15);
  color: var(--primary);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* --- Header & Navigation --- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 250, 252, 0.8);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem 0;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-area {
  display: flex;
  align-items: center;
}

.logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-secondary);
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--text-primary);
}

/* Buttons */
.btn-primary {
  background: #e0f2fe;
  color: #0369a1;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  border: 1px solid #bae6fd;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(2, 132, 199, 0.05);
  transition: transform var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary:hover {
  background: #bae6fd;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(2, 132, 199, 0.1);
  color: #0369a1;
}

.btn-primary-sm {
  background: #e0f2fe;
  color: #0369a1;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.85rem;
  border: 1px solid #bae6fd;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(2, 132, 199, 0.05);
  transition: transform var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary-sm:hover {
  background: #bae6fd;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(2, 132, 199, 0.1);
  color: #0369a1;
}

.btn-secondary {
  background: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast), border var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.btn-secondary:hover {
  background: #f1f5f9;
  border-color: rgba(0, 0, 0, 0.15);
  color: var(--text-primary);
}

.btn-paper {
  background: rgba(2, 132, 199, 0.05);
  color: var(--primary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.9rem;
  border: 1px solid rgba(2, 132, 199, 0.15);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background var(--transition-fast), border var(--transition-fast), color var(--transition-fast);
}

.btn-paper:hover {
  background: rgba(2, 132, 199, 0.12);
  color: #0270a5;
  border-color: rgba(2, 132, 199, 0.3);
}

.equation-block {
  margin: 1.25rem 0;
  padding: 1rem;
  background: rgba(15, 23, 42, 0.02);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

/* --- Layout Sections --- */
.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 3rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

/* Hero Section */
.hero-section {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.5rem;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  background: linear-gradient(to right, #0f172a, #475569);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-content .lead {
  font-size: 1.15rem;
  color: var(--text-secondary);
}

/* Stats Cards Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.stat-card {
  background: var(--bg-surface);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  transition: border-color var(--transition-normal), transform var(--transition-normal);
}

.stat-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

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

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: var(--font-heading);
  color: var(--text-primary);
}

/* --- Dashboard Panels (Shared Layout) --- */
.dashboard-panel {
  background: var(--bg-surface);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.02);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
}

.panel-title-area h2 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.panel-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 700px;
}

/* Custom Chart Legend */
.chart-legend-custom {
  display: flex;
  gap: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
  background: rgba(15, 23, 42, 0.03);
  padding: 8px 16px;
  border-radius: 50px;
  border: 1px solid var(--border-color);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.legend-line {
  width: 18px;
  height: 3px;
  border-radius: 4px;
}

.color-primary { background-color: var(--primary); }
.color-secondary { background-color: var(--secondary); }

.chart-container-wrapper {
  position: relative;
  width: 100%;
  height: 480px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  border: 1px solid var(--border-color);
}

/* --- Table Controls & Filters --- */
.table-controls-header {
  flex-direction: row;
  align-items: center;
  flex-wrap: wrap;
}

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

.search-wrapper {
  position: relative;
  width: 280px;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

#model-search {
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

#model-search:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 10px rgba(14, 165, 233, 0.2);
}

.filter-dropdown-wrapper select {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 28px 10px 14px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%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 10px center;
  background-size: 14px;
  transition: all var(--transition-fast);
}

.filter-dropdown-wrapper select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 10px rgba(14, 165, 233, 0.2);
}

/* --- Leaderboard Table styling --- */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
  background: transparent;
}

.leaderboard-table th,
.leaderboard-table td {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.leaderboard-table th {
  background: #f1f5f9;
  color: var(--text-secondary);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  user-select: none;
}

.leaderboard-table th.sortable {
  cursor: pointer;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.leaderboard-table th.sortable:hover {
  color: var(--text-primary);
  background: #e2e8f0;
}

.sort-indicator {
  display: inline-block;
  margin-left: 4px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

th.sorted-asc .sort-indicator,
th.sorted-desc .sort-indicator {
  color: var(--primary);
}

/* Table Row Highlights */
.leaderboard-table tbody tr.model-row {
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.leaderboard-table tbody tr.model-row:hover {
  background-color: var(--bg-surface-hover);
}

.leaderboard-table tbody tr.model-row.row-active {
  background-color: rgba(2, 132, 199, 0.05);
  border-left: 4px solid var(--primary);
}

/* Columns Details */
.col-rank { width: 80px; text-align: center; }
.col-name { font-weight: 600; }
.col-dev { color: var(--text-secondary); }
.col-type { width: 140px; }
.col-feasible { width: 140px; font-family: var(--font-mono); font-weight: 500; text-align: right; }
.col-moq { width: 140px; font-family: var(--font-mono); font-weight: 500; text-align: right; }
.col-action { width: 100px; text-align: center; }

/* Rank Badging styling */
.rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-weight: 700;
  font-family: var(--font-heading);
  font-size: 0.85rem;
}

.rank-1 .rank-badge {
  background: #fef08a; /* Yellow-200 */
  color: #854d0e;      /* Yellow-800 */
  box-shadow: 0 2px 8px rgba(234, 179, 8, 0.2);
}

.rank-2 .rank-badge {
  background: #e2e8f0; /* Slate-200 */
  color: #475569;      /* Slate-700 */
  box-shadow: 0 2px 8px rgba(100, 116, 139, 0.15);
}

.rank-3 .rank-badge {
  background: #ffedd5; /* Orange-100 */
  color: #9a3412;      /* Orange-800 */
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.15);
}

.rank-other .rank-badge {
  background: #f1f5f9;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

/* License Badge styling */
.badge-type {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-open {
  background: rgba(5, 150, 105, 0.08);
  color: var(--accent);
  border: 1px solid rgba(5, 150, 105, 0.15);
}

.badge-proprietary {
  background: rgba(124, 58, 237, 0.08);
  color: var(--secondary);
  border: 1px solid rgba(124, 58, 237, 0.15);
}

/* Performance Columns */
.metric-value-container {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.metric-bar-bg {
  width: 40px;
  height: 6px;
  background: #e2e8f0;
  border-radius: 3px;
  overflow: hidden;
  display: inline-block;
}

.metric-bar-fill {
  height: 100%;
  border-radius: 3px;
}

.feasible-fill { background-color: var(--accent); }
.moq-fill { background-color: var(--warning); }

/* Details Toggle Button */
.btn-toggle-details {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.btn-toggle-details:hover {
  background: rgba(15, 23, 42, 0.04);
  color: var(--text-primary);
}

.btn-toggle-details .toggle-indicator {
  display: inline-block;
  font-size: 0.7rem;
  transition: transform var(--transition-normal), color var(--transition-fast);
}

.btn-toggle-details.expanded .toggle-indicator {
  transform: rotate(180deg);
  color: var(--primary);
}

/* --- Expandable Row Details --- */
.details-row {
  background: rgba(15, 23, 42, 0.02);
}

.details-row td {
  padding: 0;
  border-bottom: 1px solid var(--border-color);
}

.details-content {
  overflow: hidden;
  height: 0;
  transition: height var(--transition-normal);
}

.details-inner {
  padding: 1.5rem 2.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr) 1.2fr;
  gap: 2rem;
  border-top: 1px dashed var(--border-color);
}

.detail-metric-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.detail-metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.detail-metric-value {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.detail-metric-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.detail-action-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.75rem;
}

.detail-action-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.detail-link-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.85rem;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.detail-link-btn:hover {
  background: rgba(2, 132, 199, 0.08);
  border-color: var(--primary);
  color: var(--primary);
}

/* --- About & Info Sections --- */
.info-section-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.info-card {
  background: var(--bg-surface);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.03), 0 1px 3px rgba(15, 23, 42, 0.02);
}

.info-card h3 {
  font-size: 1.5rem;
  background: linear-gradient(to right, #0f172a, #475569);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.info-card p {
  font-size: 0.95rem;
}

.info-card ul {
  padding-left: 1.25rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.metric-def {
  border-left: 2px solid var(--border-color);
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.metric-def:hover {
  border-color: var(--primary);
}

.metric-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
}

.metric-badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.02em;
}

.badge-emerald {
  background: rgba(5, 150, 105, 0.08);
  color: var(--accent);
  border: 1px solid rgba(5, 150, 105, 0.15);
}

.badge-purple {
  background: rgba(124, 58, 237, 0.08);
  color: var(--secondary);
  border: 1px solid rgba(124, 58, 237, 0.15);
}

/* --- Submission Guidelines styling --- */
.submit-section {
  width: 100%;
}

.submit-card {
  background: radial-gradient(circle at top right, rgba(124, 58, 237, 0.04), transparent 50%), var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.03), 0 1px 3px rgba(15, 23, 42, 0.02);
}

.submit-card:hover {
  border-color: rgba(124, 58, 237, 0.25);
}

.submit-card h2 {
  font-size: 2.25rem;
}

.submit-card p {
  max-width: 600px;
  font-size: 1.05rem;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  width: 100%;
  max-width: 650px;
  text-align: left;
  margin: 1.5rem 0;
}

.step-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  background: rgba(15, 23, 42, 0.02);
  border: 1px solid var(--border-color);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.step-item:hover {
  border-color: var(--primary);
}

.step-num {
  background: var(--primary);
  color: #fff;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  flex-shrink: 0;
}

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

.step-detail strong {
  color: var(--text-primary);
  font-size: 0.95rem;
}

.step-detail code {
  font-family: var(--font-mono);
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  padding: 4px 8px;
  border-radius: 4px;
  color: var(--primary);
  font-size: 0.85rem;
  word-break: break-all;
}

.submit-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

/* --- Footer --- */
.app-footer {
  border-top: 1px solid var(--border-color);
  padding: 2rem 0;
  background: #f1f5f9;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.app-footer p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.separator {
  color: rgba(15, 23, 42, 0.08);
}

.footer-meta a {
  color: var(--text-muted);
}

.footer-meta a:hover {
  color: var(--text-primary);
}

/* --- Accessibility utilities --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* --- Responsive Adjustments --- */
@media (max-width: 1200px) {
  .hero-section {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }
  
  .hero-content h1 {
    font-size: 3rem;
  }
  
  .hero-content .lead {
    max-width: 800px;
    margin: 0 auto;
  }
  
  .badge {
    margin-left: auto;
    margin-right: auto;
  }
  
  .stats-grid {
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
  }
}

@media (max-width: 900px) {
  .info-section-grid {
    grid-template-columns: 1fr;
  }
  
  .details-inner {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: 1.25rem;
  }
  
  .nav-links {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.25rem;
  }
  
  .main-content {
    padding: 1.5rem 1rem;
    gap: 2.5rem;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .panel-header {
    flex-direction: column;
    align-items: stretch;
    gap: 1.25rem;
  }
  
  .chart-legend-custom {
    align-self: flex-start;
  }
  
  .table-controls-header {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filters-container {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-wrapper {
    width: 100%;
  }
  
  .chart-container-wrapper {
    height: 350px;
  }
  
  .submit-card {
    padding: 2rem 1.5rem;
  }
  
  .submit-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .submit-actions a {
    width: 100%;
    text-align: center;
  }
  
  .footer-container {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
}

@media (max-width: 600px) {
  .details-inner {
    grid-template-columns: 1fr;
    padding: 1.25rem 1.5rem;
  }
}