:root {
    --bg: #0a0e17;
    --bg-card: #111827;
    --bg-card-hover: #1a2332;
    --border: #1e293b;
    --text: #e2e8f0;
    --text-dim: #94a3b8;
    --text-bright: #f8fafc;
    --accent: #22d3ee;
    --accent-dim: rgba(34, 211, 238, 0.15);
    --warn: #f59e0b;
    --warn-dim: rgba(245, 158, 11, 0.15);
    --error: #ef4444;
    --success: #10b981;
    --france: #3b82f6;
    --netherlands: #f97316;
    --austria: #ef4444;
    --catalonia: #8b5cf6;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

header {
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    background: linear-gradient(180deg, #111827 0%, var(--bg) 100%);
}

.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
}

.logo-icon { color: var(--accent); font-size: 1.4rem; }
.logo-text { font-weight: 700; color: var(--text-bright); }
.logo-divider { color: var(--border); }
.logo-product { font-weight: 400; color: var(--text-dim); }
.header-meta { font-size: 0.85rem; color: var(--text-dim); }

main {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem;
}

/* Hero stats */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    transition: border-color 0.2s;
}

.stat-card:hover { border-color: var(--text-dim); }
.stat-card.accent { border-color: var(--accent); background: var(--accent-dim); }
.stat-card.warn { border-color: var(--warn); background: var(--warn-dim); }

.stat-value {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-bright);
    letter-spacing: -0.02em;
}

.stat-card.accent .stat-value { color: var(--accent); }
.stat-card.warn .stat-value { color: var(--warn); }
.stat-label { font-size: 0.85rem; color: var(--text-dim); margin-top: 0.25rem; }

/* Panels */
.panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.panel h2 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 0.5rem;
}

.panel-desc {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.chart-container { position: relative; height: 350px; }
.chart-container.small { height: 250px; }

/* Country grid */
.country-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.country-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    border-left: 4px solid var(--accent);
}

.country-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.country-card .flag { font-size: 1.2rem; }

.country-meta {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.country-meta .cm-item { }
.cm-value { font-size: 1.3rem; font-weight: 600; color: var(--text-bright); }
.cm-label { font-size: 0.75rem; color: var(--text-dim); }

/* Cross-year */
.crossyear-stats {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.cx-stat { text-align: center; flex: 1; min-width: 120px; }
.cx-value { font-size: 1.5rem; font-weight: 600; color: var(--text-bright); }
.cx-stat.highlight .cx-value { color: var(--warn); }
.cx-label { font-size: 0.75rem; color: var(--text-dim); }

/* Confusion table */
.confusion-select {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 1rem;
}

.confusion-select label {
    font-size: 0.85rem;
    color: var(--text-dim);
}

.confusion-select select {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.4rem 0.75rem;
    font-family: inherit;
    font-size: 0.85rem;
}

.confusion-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.confusion-table th {
    text-align: left;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-dim);
    font-weight: 500;
    font-size: 0.8rem;
}

.confusion-table td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid rgba(30, 41, 59, 0.5);
}

.confusion-table .arrow { color: var(--warn); font-weight: 600; }

/* Methodology */
.method-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.method-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
}

.method-card h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.method-card p {
    font-size: 0.85rem;
    color: var(--text-dim);
    line-height: 1.5;
}

/* Footer */
footer {
    border-top: 1px solid var(--border);
    padding: 1.5rem 2rem;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-dim);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .country-grid { grid-template-columns: 1fr; }
    .method-grid { grid-template-columns: 1fr; }
    .crossyear-stats { flex-direction: column; }
}