:root {
    --bg-dark: #0f1115;
    --bg-panel: #1a1d24;
    --bg-panel-hover: #21252d;
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --accent-teal: #0ea5e9;
    --accent-teal-hover: #38bdf8;
    --accent-amber: #f59e0b;
    --border-color: #334155;
    --nav-bg: rgba(15, 17, 21, 0.85);
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
}

body {
    line-height: 1.6;
    font-size: 16px;
}

a {
    color: var(--accent-teal);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent-teal-hover);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    background-color: var(--nav-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
}

.logo {
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: -0.02em;
    color: #fff;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9rem;
}

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

/* Header & Hero */
.hero {
    padding: 5rem 0 3rem;
    text-align: center;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: rgba(14, 165, 233, 0.1);
    color: var(--accent-teal);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    border: 1px solid rgba(14, 165, 233, 0.2);
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.5rem;
    letter-spacing: -0.03em;
    color: #fff;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    font-weight: 400;
}

.executive-summary {
    background-color: var(--bg-panel);
    border-radius: 12px;
    padding: 2rem;
    text-align: left;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.executive-summary h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #fff;
}

.summary-list {
    margin-top: 1rem;
    padding-left: 1.5rem;
}

.summary-list li {
    margin-bottom: 0.5rem;
}

/* Sections */
.section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #fff;
    letter-spacing: -0.02em;
}

.section-desc {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.subsection-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #fff;
}

.mt-4 {
    margin-top: 2rem;
}

/* Card Grids */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.card {
    background-color: var(--bg-panel);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    background-color: var(--bg-panel-hover);
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: #fff;
}

.card-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.rank-1 { background-color: rgba(245, 158, 11, 0.15); color: #fcd34d; border: 1px solid rgba(245, 158, 11, 0.3); }
.rank-2 { background-color: rgba(148, 163, 184, 0.15); color: #cbd5e1; border: 1px solid rgba(148, 163, 184, 0.3); }
.rank-3 { background-color: rgba(180, 83, 9, 0.15); color: #fca5a5; border: 1px solid rgba(180, 83, 9, 0.3); }
.rank-4 { background-color: rgba(71, 85, 105, 0.2); color: #94a3b8; border: 1px solid rgba(71, 85, 105, 0.4); }

.teal { background-color: rgba(14, 165, 233, 0.15); color: #38bdf8; border: 1px solid rgba(14, 165, 233, 0.3); }
.green { background-color: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.3); }
.blue { background-color: rgba(59, 130, 246, 0.15); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.3); }
.gray { background-color: rgba(100, 116, 139, 0.15); color: #94a3b8; border: 1px solid rgba(100, 116, 139, 0.3); }

.specs {
    list-style: none;
    font-size: 0.9rem;
}

.specs li {
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.specs strong {
    color: var(--text-main);
}

/* Tables */
.table-container {
    overflow-x: auto;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    background-color: var(--bg-panel);
}

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

.data-table th {
    background-color: rgba(255, 255, 255, 0.03);
    font-weight: 600;
    color: #fff;
    font-size: 0.95rem;
}

.data-table tbody tr:nth-child(even) {
    background-color: rgba(255, 255, 255, 0.02);
}

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

.data-table tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.04);
}

.highlight-row {
    background-color: rgba(14, 165, 233, 0.08) !important;
}

.highlight-row td {
    color: #fff;
}

.highlight-row td:first-child {
    border-left: 3px solid var(--accent-teal);
}

/* Accordion */
.accordion {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.accordion-item {
    border-bottom: 1px solid var(--border-color);
}

.accordion-item:last-child {
    border-bottom: none;
}

.accordion-header {
    width: 100%;
    padding: 1.25rem;
    background-color: var(--bg-panel);
    border: none;
    color: #fff;
    font-weight: 600;
    font-size: 1.05rem;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.2s ease;
    font-family: inherit;
}

.accordion-header:hover {
    background-color: var(--bg-panel-hover);
}

.accordion-header::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-muted);
}

.accordion-item.active .accordion-header::after {
    content: '−';
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    background-color: var(--bg-dark);
    transition: max-height 0.3s ease;
}

.accordion-content > div, .accordion-content > p, .accordion-content > ul {
    padding: 1.25rem;
}

.accordion-content ul {
    padding-left: 2.5rem;
}

/* Specific grids */
.eliminated-card h3 {
    color: #ef4444;
}

.rec-spec {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.rec-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1rem;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 3rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 2rem;
}

.footer p {
    margin-bottom: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .section {
        padding: 2.5rem 0;
    }
}