:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --border: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --accent: #c9a227;
    --accent-hover: #dbb633;
    --blue: #58a6ff;
    --green: #3fb950;
    --red: #f85149;
    --purple: #bc8cff;
    --icon-filter: invert(1) brightness(0.85);
}

[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f6f8fa;
    --bg-tertiary: #e8ecf0;
    --border: #d0d7de;
    --text-primary: #1f2328;
    --text-secondary: #656d76;
    --accent: #9a7611;
    --accent-hover: #7d5f0e;
    --blue: #0969da;
    --green: #1a7f37;
    --red: #cf222e;
    --purple: #8250df;
    --icon-filter: brightness(0.2);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

/* --- Header --- */

header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
}

header h1 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--accent);
}

header h1 span {
    color: var(--text-secondary);
    font-weight: 400;
    font-size: 0.9rem;
}

.header-actions {
    margin-left: auto;
    display: flex;
    gap: 8px;
    align-items: center;
}

.header-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    line-height: 1.2;
    transition: background 0.15s, border-color 0.15s;
    white-space: nowrap;
}

.header-btn:hover {
    border-color: var(--text-secondary);
}

.theme-toggle {
    font-size: 1rem;
}

.lang-toggle {
    font-weight: 600;
    letter-spacing: 0.03em;
    min-width: 36px;
    text-align: center;
}

/* --- Simple mode filters --- */

.simple-filters {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
}

.simple-filters-row {
    display: flex;
    gap: 24px;
    align-items: center;
    flex-wrap: wrap;
}

.filter-inline {
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.filter-inline select {
    width: auto;
    min-width: 160px;
}

/* --- Layout modes --- */

.layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    min-height: calc(100vh - 60px);
}

[data-mode="simple"] .layout { display: none; }
[data-mode="simple"] .simple-filters { display: block; }
[data-mode="simple"] #chartsHost { padding: 24px; max-width: 1200px; margin: 0 auto; }
[data-mode="simple"] .advanced-only { display: none; }
[data-mode="simple"] #tableSection { display: none; }

[data-mode="advanced"] .simple-filters { display: none; }
[data-mode="advanced"] #chartsHost { /* hosted inside mainContent via JS */ }

/* --- Sidebar --- */

.sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 16px;
    overflow-y: auto;
    max-height: calc(100vh - 60px);
    position: sticky;
    top: 0;
}

.sidebar h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 8px;
    margin-top: 16px;
}

.sidebar h3:first-child { margin-top: 0; }

.filter-group {
    margin-bottom: 12px;
}

label {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: background 0.15s;
}

label:hover { background: var(--bg-tertiary); }

label input[type="checkbox"] {
    accent-color: var(--accent);
}

.count-badge {
    margin-left: auto;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 1px 6px;
    border-radius: 10px;
    font-size: 0.75rem;
}

select, input[type="range"] {
    width: 100%;
    padding: 6px 8px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.85rem;
    outline: none;
}

select:focus { border-color: var(--accent); }

.year-range {
    display: flex;
    gap: 8px;
    align-items: center;
}

.year-range input {
    width: 80px;
    padding: 4px 8px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.85rem;
    text-align: center;
}

/* --- Main content --- */

.main {
    padding: 24px;
    overflow-y: auto;
}

.stats-bar {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 20px;
    min-width: 140px;
}

.stat-card .value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-card .label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* --- Charts --- */

.chart-controls {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.chart-controls button {
    padding: 6px 14px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.15s;
}

.chart-controls button:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.chart-controls button.active {
    background: var(--accent);
    color: #000;
    border-color: var(--accent);
    font-weight: 600;
}

.chart-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 24px;
    position: relative;
}

.chart-container h2 {
    font-size: 1rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.chart-wrap {
    position: relative;
    width: 100%;
    min-height: 350px;
}

.chart-wrap canvas {
    width: 100% !important;
}

.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

/* --- Loading --- */

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 60vh;
    flex-direction: column;
    gap: 16px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* --- Table --- */

.table-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 24px;
}

.table-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px 12px;
}

.table-header h2 {
    font-size: 1rem;
}

.btn-export {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 0.78rem;
    cursor: pointer;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
    white-space: nowrap;
}

.btn-export:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

thead th {
    background: var(--bg-tertiary);
    padding: 8px 12px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

thead th:hover { color: var(--text-primary); }

tbody td {
    padding: 6px 12px;
    border-bottom: 1px solid var(--border);
}

tbody tr:hover { background: var(--bg-tertiary); }

.set-icon {
    width: 20px;
    height: 20px;
    vertical-align: middle;
    margin-right: 6px;
    filter: var(--icon-filter);
}

.table-search {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.85rem;
    outline: none;
}

.table-search:focus { border-color: var(--accent); }

.table-search::placeholder { color: var(--text-secondary); }

/* --- Tags & pills --- */

.tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 500;
}

.select-actions {
    display: flex;
    gap: 6px;
    margin-bottom: 6px;
}

.select-actions button {
    background: none;
    border: none;
    color: var(--blue);
    cursor: pointer;
    font-size: 0.75rem;
    padding: 2px 4px;
}

.select-actions button:hover { text-decoration: underline; }

.custom-group-section {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    background: var(--bg-tertiary);
    border-radius: 10px;
    font-size: 0.75rem;
    margin: 2px;
}

.pill .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

/* --- Utilities --- */

.hidden { display: none !important; }

/* --- Footer --- */

footer {
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
    padding: 24px;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

footer a {
    color: var(--accent);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

.footer-made {
    margin-top: 8px;
    font-size: 0.8rem;
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.heart-icon {
    width: 14px;
    height: 14px;
    fill: var(--red);
}

.footer-icon {
    display: inline-flex;
    align-items: center;
    color: var(--text-secondary);
    transition: color 0.15s;
}

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

.footer-icon svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.footer-links {
    margin-top: 10px;
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--accent);
}

/* --- Legal pages (terms / privacy) --- */

.legal {
    max-width: 820px;
    margin: 0 auto;
    padding: 40px 24px 64px;
    line-height: 1.7;
    color: var(--text-primary);
}

.legal .legal-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    margin-bottom: 24px;
}

.legal .legal-back:hover { color: var(--accent); }

.legal h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 6px;
}

.legal .legal-updated {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-bottom: 32px;
}

.legal h2 {
    font-size: 1.15rem;
    font-weight: 600;
    margin: 32px 0 10px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border);
}

.legal p { margin-bottom: 14px; }

.legal ul {
    margin: 0 0 14px 22px;
    padding: 0;
}

.legal li { margin-bottom: 8px; }

.legal a {
    color: var(--accent);
    text-decoration: none;
}

.legal a:hover { text-decoration: underline; }

body[data-lang="pt"] .lang-en { display: none; }
body[data-lang="en"] .lang-pt { display: none; }

header h1 a {
    color: inherit;
    text-decoration: none;
}

/* --- Responsive --- */

@media (max-width: 900px) {
    .layout { grid-template-columns: 1fr; }
    .sidebar {
        position: static;
        max-height: none;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }
    .charts-grid { grid-template-columns: 1fr; }
    header h1 span { display: none; }
    .simple-filters-row { flex-direction: column; gap: 8px; }
}