/* ==========================================================================
   Design System & Variable Declarations
   ========================================================================== */
:root[data-theme="dark"] {
    --bg-color: #0a0e17;
    --card-bg: rgba(17, 24, 39, 0.65);
    --card-bg-solid: #111827;
    --border-color: rgba(255, 255, 255, 0.07);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-tertiary: #6b7280;
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.18);
    --secondary-color: #8b5cf6;
    --accent-color: #3b82f6;
    --success-color: #10b981;
    --success-glow: rgba(16, 185, 129, 0.15);
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --header-bg: rgba(10, 14, 23, 0.75);
    --table-header-bg: rgba(15, 23, 42, 0.6);
    --table-row-hover: rgba(255, 255, 255, 0.02);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --modal-overlay: rgba(3, 7, 18, 0.8);
}

:root[data-theme="light"] {
    --bg-color: #f8fafc;
    --card-bg: rgba(255, 255, 255, 0.8);
    --card-bg-solid: #ffffff;
    --border-color: rgba(15, 23, 42, 0.08);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    --primary-color: #4f46e5;
    --primary-hover: #3730a3;
    --primary-glow: rgba(79, 70, 229, 0.1);
    --secondary-color: #7c3aed;
    --accent-color: #2563eb;
    --success-color: #059669;
    --success-glow: rgba(5, 150, 105, 0.1);
    --danger-color: #dc2626;
    --warning-color: #d97706;
    --header-bg: rgba(248, 250, 252, 0.8);
    --table-header-bg: rgba(241, 245, 249, 0.8);
    --table-row-hover: rgba(0, 0, 0, 0.02);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -1px rgba(15, 23, 42, 0.01);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.1), 0 4px 6px -2px rgba(15, 23, 42, 0.05);
    --modal-overlay: rgba(15, 23, 42, 0.5);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ==========================================================================
   Background Orbs (Decorative)
   ========================================================================== */
.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    opacity: 0.45;
    pointer-events: none;
    transition: all 0.5s ease;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--primary-color), transparent 70%);
    top: -100px;
    left: -150px;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--secondary-color), transparent 70%);
    top: 40%;
    right: -200px;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, var(--accent-color), transparent 70%);
    bottom: -50px;
    left: 20%;
}

/* ==========================================================================
   Typography Utilities
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
}

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

.accent-text {
    color: var(--primary-color);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background-color: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.3s ease;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 1.75rem;
    height: 1.75rem;
    color: var(--primary-color);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s ease;
    padding: 0.25rem 0;
    position: relative;
}

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

.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.theme-toggle:hover {
    color: var(--text-primary);
    background-color: var(--border-color);
}

.theme-icon {
    width: 1.25rem;
    height: 1.25rem;
}

/* ==========================================================================
   Main Content Layout
   ========================================================================== */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 7rem 1.5rem 3rem;
}

section {
    margin-bottom: 4.5rem;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3.5rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.last-sync-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.85rem;
    background-color: var(--border-color);
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background-color: var(--success-color);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--success-color);
}

/* ==========================================================================
   Quick Stats Grid
   ========================================================================== */
.stats-banner-container {
    margin-bottom: 3.5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.stat-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    border-color: rgba(99, 102, 241, 0.2);
}

.stat-icon-wrapper {
    width: 3rem;
    height: 3rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon-wrapper.blue { background-color: rgba(59, 130, 246, 0.15); color: #3b82f6; }
.stat-icon-wrapper.purple { background-color: rgba(139, 92, 246, 0.15); color: #8b5cf6; }
.stat-icon-wrapper.emerald { background-color: rgba(16, 185, 129, 0.15); color: #10b981; }
.stat-icon-wrapper.gold { background-color: rgba(245, 158, 11, 0.15); color: #f59e0b; }

.stat-icon {
    width: 1.5rem;
    height: 1.5rem;
}

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

.stat-label {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.75px;
    margin-bottom: 1.5rem;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-top: -1rem;
    margin-bottom: 2rem;
}

/* ==========================================================================
   Top Picks Cards
   ========================================================================== */
.top-picks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.pick-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease;
}

.pick-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg), 0 0 15px var(--primary-glow);
}

.pick-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.pick-badge {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background-color: var(--primary-glow);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: var(--primary-color);
    padding: 0.25rem 0.65rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.pick-header {
    margin-bottom: 1rem;
}

.pick-provider {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pick-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
}

.pick-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    min-height: 2.7rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.pick-stats {
    display: flex;
    justify-content: space-between;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.pick-stat-item {
    display: flex;
    flex-direction: column;
}

.pick-stat-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.pick-stat-value {
    font-size: 0.9rem;
    font-weight: 600;
}

.pick-stat-value.highlight {
    color: var(--success-color);
}

.loading-placeholder {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    background-color: var(--card-bg);
    border: 1px dashed var(--border-color);
    border-radius: 16px;
    font-weight: 500;
}

/* ==========================================================================
   Leaderboard Filters
   ========================================================================== */
.section-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.search-filter-controls {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

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

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1.15rem;
    height: 1.15rem;
    color: var(--text-tertiary);
}

#model-search-input {
    width: 100%;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.65rem 1rem 0.65rem 2.25rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

#model-search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.select-wrapper {
    position: relative;
}

#provider-filter-select {
    appearance: none;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.65rem 2rem 0.65rem 1rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

#provider-filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.select-wrapper::after {
    content: '▼';
    font-size: 0.7rem;
    position: absolute;
    right: 0.8rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
}

.category-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.category-tab {
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.88rem;
    transition: all 0.2s ease;
}

.category-tab:hover {
    color: var(--text-primary);
    background-color: var(--border-color);
}

.category-tab.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Leaderboard Table
   ========================================================================== */
.table-container {
    background-color: var(--card-bg-solid);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow-x: auto;
    box-shadow: var(--shadow-md);
}

.leaderboard-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.leaderboard-table th {
    background-color: var(--table-header-bg);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.leaderboard-table th.sortable {
    cursor: pointer;
    user-select: none;
}

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

.leaderboard-table th.active {
    color: var(--primary-color);
}

.sort-direction {
    display: inline-block;
    margin-left: 0.25rem;
    font-size: 0.75rem;
}

.leaderboard-table td {
    padding: 1.1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.leaderboard-table tbody tr {
    transition: background-color 0.15s ease;
}

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

.leaderboard-table tbody tr:last-child td {
    border-bottom: none;
}

/* Table cells specifics */
.cell-model-info {
    display: flex;
    flex-direction: column;
}

.cell-model-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.cell-model-provider {
    font-size: 0.78rem;
    color: var(--text-tertiary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 600;
}

.badge.general { background-color: rgba(99, 102, 241, 0.12); color: var(--primary-color); }
.badge.reasoning { background-color: rgba(139, 92, 246, 0.12); color: var(--secondary-color); }
.badge.coding { background-color: rgba(59, 130, 246, 0.12); color: var(--accent-color); }
.badge.lightweight { background-color: rgba(107, 114, 128, 0.12); color: var(--text-secondary); }

/* Provider badges */
.provider-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.provider-badge.openai { background-color: rgba(16, 163, 127, 0.1); color: #10a37f; border: 1px solid rgba(16, 163, 127, 0.2); }
.provider-badge.anthropic { background-color: rgba(204, 119, 85, 0.1); color: #cc7755; border: 1px solid rgba(204, 119, 85, 0.2); }
.provider-badge.google { background-color: rgba(66, 133, 244, 0.1); color: #4285f4; border: 1px solid rgba(66, 133, 244, 0.2); }
.provider-badge.deepseek { background-color: rgba(0, 102, 255, 0.1); color: #0066ff; border: 1px solid rgba(0, 102, 255, 0.2); }
.provider-badge.meta { background-color: rgba(6, 104, 226, 0.1); color: #0668e2; border: 1px solid rgba(6, 104, 226, 0.2); }
.provider-badge.mistral { background-color: rgba(253, 110, 33, 0.1); color: #fd6e21; border: 1px solid rgba(253, 110, 33, 0.2); }
.provider-badge.cohere { background-color: rgba(58, 125, 112, 0.1); color: #3a7d70; border: 1px solid rgba(58, 125, 112, 0.2); }
.provider-badge.qwen { background-color: rgba(139, 92, 246, 0.1); color: #8b5cf6; border: 1px solid rgba(139, 92, 246, 0.2); }
.provider-badge.microsoft { background-color: rgba(0, 164, 239, 0.1); color: #00a4ef; border: 1px solid rgba(0, 164, 239, 0.2); }

.score-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 50%;
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
}

.score-badge.high { background-color: var(--success-glow); color: var(--success-color); border: 1px solid rgba(16, 185, 129, 0.3); }
.score-badge.mid { background-color: rgba(245, 158, 11, 0.1); color: var(--warning-color); border: 1px solid rgba(245, 158, 11, 0.3); }
.score-badge.low { background-color: rgba(239, 68, 68, 0.1); color: var(--danger-color); border: 1px solid rgba(239, 68, 68, 0.3); }

.btn-icon {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    width: 2rem;
    height: 2rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.btn-icon:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background-color: var(--primary-glow);
}

.loading-row, .empty-row {
    text-align: center;
    padding: 3rem !important;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ==========================================================================
   Cost Calculator
   ========================================================================== */
.calculator-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

@media (max-width: 868px) {
    .calculator-grid {
        grid-template-columns: 1fr;
    }
}

.calc-panel-inputs {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

.calc-input-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

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

.calc-input-header label {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.calc-input-badge {
    background-color: var(--primary-glow);
    color: var(--primary-color);
    border: 1px solid rgba(99, 102, 241, 0.3);
    padding: 0.25rem 0.75rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9rem;
    font-family: 'Outfit', sans-serif;
}

.calc-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
}

.calc-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    box-shadow: 0 0 8px var(--primary-color);
    transition: transform 0.1s ease;
}

.calc-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.slider-marks {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.calc-input-info {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.calc-panel-results {
    background-color: var(--card-bg-solid);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
}

.results-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.calc-results-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    overflow-y: auto;
    max-height: 340px;
    padding-right: 0.25rem;
}

/* Custom scrollbar for results list */
.calc-results-list::-webkit-scrollbar {
    width: 6px;
}
.calc-results-list::-webkit-scrollbar-track {
    background: transparent;
}
.calc-results-list::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 3px;
}

.calc-result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background-color: var(--bg-color);
    transition: all 0.2s ease;
}

.calc-result-row:hover {
    border-color: rgba(99, 102, 241, 0.2);
}

.calc-result-row.cheapest {
    border-color: rgba(16, 185, 129, 0.4);
    background-color: rgba(16, 185, 129, 0.03);
}

.calc-result-row.expensive {
    border-color: rgba(239, 68, 68, 0.2);
}

.calc-row-model {
    display: flex;
    flex-direction: column;
}

.calc-row-name {
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--text-primary);
}

.calc-row-provider {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
}

.calc-row-cost-area {
    text-align: right;
    display: flex;
    flex-direction: column;
}

.calc-row-cost-value {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
}

.cheapest .calc-row-cost-value {
    color: var(--success-color);
}

.calc-row-cost-tag {
    font-size: 0.72rem;
    color: var(--text-tertiary);
}

.calc-result-cheapest-badge {
    background-color: var(--success-color);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-top: 0.15rem;
    align-self: flex-end;
}

/* ==========================================================================
   Model Details Modal
   ========================================================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-overlay);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 1.5rem;
    animation: fadeIn 0.2s ease-out;
}

.modal-container {
    background-color: var(--card-bg-solid);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    width: 100%;
    max-width: 650px;
    position: relative;
    box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 0, 0, 0.4);
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    max-height: 90vh;
    overflow-y: auto;
}

.modal-close-btn {
    position: absolute;
    top: 1rem;
    right: 1.25rem;
    background: none;
    border: none;
    font-size: 1.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.2s ease;
    z-index: 10;
}

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

.modal-content {
    padding: 2.25rem;
}

/* Modal Content Data Layout */
.modal-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.25rem;
    margin-bottom: 1.5rem;
}

.modal-provider {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.modal-name-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.modal-name {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.modal-desc {
    color: var(--text-secondary);
    font-size: 0.98rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.modal-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.modal-info-card {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
}

.modal-info-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    font-weight: 500;
    text-transform: uppercase;
}

.modal-info-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 0.15rem;
}

.modal-info-value.cost {
    color: var(--success-color);
}

/* Metrics comparison bars */
.modal-metrics-section {
    margin-bottom: 2rem;
}

.metrics-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.metric-bar-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    margin-bottom: 1rem;
}

.metric-bar-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
}

.metric-name {
    font-weight: 600;
    color: var(--text-secondary);
}

.metric-value {
    font-weight: 700;
    color: var(--text-primary);
}

.metric-bar-outer {
    width: 100%;
    height: 8px;
    background-color: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.metric-bar-inner {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    width: 0; /* Animated in JS */
    transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Modal Strengths Tags */
.modal-strengths-section {
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
}

.strengths-title {
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-tertiary);
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}

.strengths-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.strength-tag {
    background-color: var(--border-color);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 500;
    padding: 0.35rem 0.75rem;
    border-radius: 8px;
}

/* ==========================================================================
   Dropdown menu
   ========================================================================== */
.nav-dropdown {
    position: relative;
    display: inline-block;
}

.nav-dropdown-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    font-family: inherit;
    cursor: pointer;
    padding: 0.25rem 0;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: color 0.2s ease;
}

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

.dropdown-chevron {
    width: 14px;
    height: 14px;
    transition: transform 0.2s ease;
}

.nav-dropdown:hover .dropdown-chevron {
    transform: rotate(180deg);
}

.nav-dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--card-bg-solid);
    min-width: 220px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    z-index: 100;
    padding: 0.5rem 0;
    margin-top: 0.5rem;
    backdrop-filter: blur(10px);
}

.nav-dropdown-content a {
    color: var(--text-secondary);
    padding: 0.6rem 1rem;
    text-decoration: none;
    display: block;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    text-align: left;
}

.nav-dropdown-content a:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--primary-color);
    padding-left: 1.25rem;
}

.nav-dropdown:hover .nav-dropdown-content {
    display: block;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.app-footer {
    border-top: 1px solid var(--border-color);
    background-color: var(--card-bg-solid);
    padding: 4rem 1.5rem 2rem 1.5rem;
    margin-top: 5rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    text-align: left;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.brand-col .logo-area {
    justify-content: flex-start;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    max-width: 320px;
}

.footer-copy {
    color: var(--text-tertiary);
    font-size: 0.8rem;
}

.footer-heading {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Outfit', sans-serif;
    letter-spacing: -0.2px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.footer-credits {
    color: var(--text-tertiary);
    font-size: 0.78rem;
}

/* ==========================================================================
   Keyframes & Animations
   ========================================================================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* ==========================================================================
   External Benchmarks Section
   ========================================================================== */
.external-benchmarks-section {
    margin-top: 5rem;
    padding: 2rem 0;
}

.benchmarks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.benchmark-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
}

.benchmark-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg), 0 0 20px var(--primary-glow);
    background-color: rgba(17, 24, 39, 0.8);
}

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

.benchmark-card-title {
    color: var(--text-primary);
    font-size: 1.15rem;
    font-weight: 600;
    font-family: 'Outfit', sans-serif;
    letter-spacing: -0.2px;
    transition: color 0.2s ease;
}

.benchmark-card:hover .benchmark-card-title {
    color: var(--primary-color);
}

.external-link-icon {
    width: 16px;
    height: 16px;
    color: var(--text-tertiary);
    transition: color 0.2s ease, transform 0.2s ease;
}

.benchmark-card:hover .external-link-icon {
    color: var(--primary-color);
    transform: translate(2px, -2px);
}

.benchmark-card-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-header-row {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-input-wrapper {
        min-width: 100%;
    }
    
    .nav-links {
        display: none; /* Hide standard nav on mobile */
    }
    
    .modal-info-grid {
        grid-template-columns: 1fr;
    }
    
    .header-container {
        padding: 0.75rem 1rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .footer-container {
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* ==========================================================================
   Language Switcher & Auth Styles
   ========================================================================== */
.lang-btn:hover {
    border-color: var(--primary-color) !important;
    background-color: rgba(59, 130, 246, 0.05) !important;
}

.auth-btn:hover, .nav-btn:hover {
    border-color: var(--primary-color) !important;
    background-color: rgba(59, 130, 246, 0.05) !important;
    color: var(--primary-color) !important;
}

.auth-oauth-btn:hover {
    border-color: var(--primary-color) !important;
    background-color: rgba(59, 130, 246, 0.08) !important;
}

.auth-submit:hover {
    filter: brightness(1.1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}