/* ============================================================
   SDGs Publications Chart — Stylesheet v2.0.0
   Modern, responsive, professional dashboard design
   ============================================================ */

:root {
    --spc-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --spc-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --spc-text-900: #0f172a;
    --spc-text-700: #334155;
    --spc-text-500: #64748b;
    --spc-text-400: #94a3b8;
    --spc-text-300: #cbd5e1;

    --spc-bg: #f1f5f9;
    --spc-surface: #ffffff;
    --spc-border: #e2e8f0;
    --spc-border-light: #f1f5f9;

    --spc-blue: #2563eb;
    --spc-blue-dark: #1d4ed8;
    --spc-blue-light: #eff6ff;
    --spc-green: #059669;
    --spc-green-light: #ecfdf5;
    --spc-amber: #d97706;
    --spc-amber-light: #fffbeb;
    --spc-purple: #7c3aed;
    --spc-purple-light: #f5f3ff;

    --spc-radius: 16px;
    --spc-radius-sm: 10px;
    --spc-radius-xs: 6px;
    --spc-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 4px 6px rgba(0,0,0,0.02);
    --spc-shadow-md: 0 4px 6px rgba(0,0,0,0.04), 0 10px 20px rgba(0,0,0,0.06);
    --spc-shadow-lg: 0 10px 25px rgba(0,0,0,0.06), 0 20px 48px rgba(0,0,0,0.04);

    --spc-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─── Reset ─── */
.spc-dashboard *, .spc-dashboard *::before, .spc-dashboard *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.spc-dashboard {
    font-family: var(--spc-font);
    color: var(--spc-text-700);
    max-width: 1280px;
    margin: 0 auto;
    padding: 40px 24px 60px;
    background: var(--spc-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ─── Stat Cards ─── */
.spc-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 28px;
}

.spc-stat-card {
    background: var(--spc-surface);
    border: 1px solid var(--spc-border);
    border-radius: var(--spc-radius);
    padding: 24px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 14px;
    box-shadow: var(--spc-shadow);
    transition: box-shadow var(--spc-transition), transform var(--spc-transition);
    position: relative;
    overflow: hidden;
}

.spc-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: var(--spc-radius) var(--spc-radius) 0 0;
    opacity: 0;
    transition: opacity var(--spc-transition);
}

.spc-stat-card:hover {
    box-shadow: var(--spc-shadow-md);
    transform: translateY(-3px);
}
.spc-stat-card:hover::before {
    opacity: 1;
}

.spc-stat-card:nth-child(1)::before { background: var(--spc-blue); }
.spc-stat-card:nth-child(2)::before { background: var(--spc-green); }
.spc-stat-card:nth-child(3)::before { background: var(--spc-amber); }
.spc-stat-card:nth-child(4)::before { background: var(--spc-purple); }

.spc-stat-card__icon {
    width: 52px;
    height: 52px;
    border-radius: var(--spc-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform var(--spc-transition);
}

.spc-stat-card:hover .spc-stat-card__icon {
    transform: scale(1.08);
}

.spc-stat-card__icon svg { width: 24px; height: 24px; }
.spc-stat-card__icon--total { background: var(--spc-blue-light); color: var(--spc-blue); }
.spc-stat-card__icon--years { background: var(--spc-green-light); color: var(--spc-green); }
.spc-stat-card__icon--peak  { background: var(--spc-amber-light); color: var(--spc-amber); }
.spc-stat-card__icon--avg   { background: var(--spc-purple-light); color: var(--spc-purple); }

.spc-stat-card__body { display: flex; flex-direction: column; align-items: center; min-width: 0; width: 100%; }
.spc-stat-card__value {
    font-family: var(--spc-mono);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--spc-text-900);
    line-height: 1.2;
    letter-spacing: -0.02em;
}
.spc-stat-card__label {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--spc-text-500);
    margin-top: 4px;
    white-space: normal;
    word-wrap: break-word;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* ─── Panels ─── */
.spc-panel {
    background: var(--spc-surface);
    border: 1px solid var(--spc-border);
    border-radius: var(--spc-radius);
    box-shadow: var(--spc-shadow);
    margin-bottom: 28px;
    overflow: hidden;
    transition: box-shadow var(--spc-transition);
}
.spc-panel:hover {
    box-shadow: var(--spc-shadow-md);
}

.spc-panel__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 28px;
    border-bottom: 1px solid var(--spc-border-light);
    background: linear-gradient(to bottom, rgba(248,250,252,0.6), transparent);
}
.spc-panel__title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--spc-text-900);
    letter-spacing: -0.015em;
}
.spc-panel__badge {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--spc-blue);
    background: var(--spc-blue-light);
    padding: 5px 12px;
    border-radius: 24px;
    border: 1px solid rgba(37, 99, 235, 0.1);
}

/* ─── Charts Row ─── */
.spc-charts-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
    margin-bottom: 28px;
}
.spc-charts-row .spc-panel { margin-bottom: 0; }

.spc-chart-container { padding: 24px 28px 28px; }
.spc-chart-container--line { height: 380px; }
.spc-chart-container--doughnut {
    height: 380px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.spc-chart-container--subjects { width: 300px; height: 300px; flex-shrink: 0; }

.spc-chart-container canvas { max-width: 100%; max-height: 100%; }

/* ─── Subject Trends Layout ─── */
.spc-subjects-layout {
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 28px;
}
.spc-subjects-legend {
    flex: 1;
    min-width: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 4px;
}
.spc-legend-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: var(--spc-radius-xs);
    transition: background var(--spc-transition), transform var(--spc-transition);
    cursor: default;
}
.spc-legend-row:hover {
    background: var(--spc-border-light);
    transform: translateX(2px);
}
.spc-legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 4px;
    flex-shrink: 0;
}
.spc-legend-name {
    flex: 1;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--spc-text-700);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.spc-legend-pct {
    font-family: var(--spc-mono);
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--spc-text-900);
    white-space: nowrap;
    background: var(--spc-border-light);
    padding: 2px 8px;
    border-radius: 4px;
}

/* ─── Data Table ─── */
.spc-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--spc-text-300) transparent;
}
.spc-table-wrap::-webkit-scrollbar { height: 6px; }
.spc-table-wrap::-webkit-scrollbar-track { background: transparent; }
.spc-table-wrap::-webkit-scrollbar-thumb { background: var(--spc-text-300); border-radius: 3px; }

.spc-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}
.spc-table thead th {
    padding: 14px 20px;
    text-align: left;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--spc-text-500);
    background: var(--spc-bg);
    border-bottom: 2px solid var(--spc-border);
    position: sticky;
    top: 0;
    z-index: 2;
}
.spc-table tbody td {
    padding: 14px 20px;
    border-bottom: 1px solid var(--spc-border-light);
    vertical-align: middle;
}
.spc-table tbody tr {
    transition: background var(--spc-transition);
}
.spc-table tbody tr:hover {
    background: var(--spc-blue-light);
}
.spc-table tbody tr:last-child td { border-bottom: none; }

.spc-td--year {
    font-weight: 700;
    color: var(--spc-text-900);
    font-family: var(--spc-mono);
    font-size: 0.9rem;
}
.spc-td--num {
    font-family: var(--spc-mono);
    font-weight: 600;
    color: var(--spc-blue);
    font-size: 0.9rem;
}
.spc-td--pct {
    font-family: var(--spc-mono);
    font-weight: 600;
    color: var(--spc-text-500);
}
.spc-td--bar { width: 40%; min-width: 140px; }

.spc-inline-bar {
    height: 10px;
    background: var(--spc-border-light);
    border-radius: 5px;
    overflow: hidden;
}
.spc-inline-bar__fill {
    height: 100%;
    background: linear-gradient(90deg, var(--spc-blue), var(--spc-blue-dark));
    border-radius: 5px;
    width: 0;
    transition: width 1.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ─── Footer ─── */
.spc-footer {
    text-align: center;
    padding: 24px 0 0;
    font-size: 0.76rem;
    color: var(--spc-text-400);
    border-top: 1px solid var(--spc-border);
    margin-top: 12px;
}
.spc-footer p {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    flex-wrap: wrap;
}

/* ─── Error ─── */
.spc-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--spc-radius);
    padding: 48px 32px;
    text-align: center;
    color: #b91c1c;
    font-weight: 600;
    font-size: 1rem;
}

/* ─── Animations ─── */
.spc-stagger {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.spc-stagger.spc-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ─── Responsive — Tablet ─── */
@media (max-width: 1100px) {
    .spc-stats { grid-template-columns: repeat(2, 1fr); }
    .spc-subjects-layout { flex-direction: column; align-items: stretch; }
    .spc-chart-container--subjects {
        width: 260px;
        height: 260px;
        margin: 0 auto;
    }
    .spc-subjects-legend {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .spc-dashboard { padding: 24px 16px 40px; }
    .spc-stats { gap: 12px; }
    .spc-stat-card { padding: 18px 16px; gap: 12px; }
    .spc-stat-card__icon { width: 44px; height: 44px; }
    .spc-stat-card__icon svg { width: 20px; height: 20px; }
    .spc-stat-card__value { font-size: 1.4rem; }
    .spc-stat-card__label { font-size: 0.72rem; }
    .spc-panel__header { padding: 18px 20px; flex-wrap: wrap; gap: 10px; }
    .spc-panel__title { font-size: 1rem; }
    .spc-chart-container { padding: 16px 18px 20px; }
    .spc-chart-container--line { height: 280px; }
    .spc-chart-container--doughnut { height: 300px; }
    .spc-subjects-layout { padding: 20px; gap: 24px; }
    .spc-chart-container--subjects { width: 220px; height: 220px; }
    .spc-subjects-legend { grid-template-columns: 1fr; }
    .spc-table thead th,
    .spc-table tbody td { padding: 12px 14px; }
    .spc-charts-row { gap: 20px; }
}

@media (max-width: 480px) {
    .spc-dashboard { padding: 16px 12px 32px; }
    .spc-stats { grid-template-columns: 1fr 1fr; gap: 10px; }
    .spc-stat-card { padding: 14px 12px; gap: 10px; }
    .spc-stat-card__icon { width: 38px; height: 38px; }
    .spc-stat-card__icon svg { width: 18px; height: 18px; }
    .spc-stat-card__value { font-size: 1.25rem; }
    .spc-stat-card__label { font-size: 0.68rem; }
    .spc-panel__header { padding: 14px 16px; }
    .spc-panel__title { font-size: 0.9rem; }
    .spc-panel__badge { font-size: 0.62rem; padding: 4px 10px; }
    .spc-chart-container { padding: 12px 14px 16px; }
    .spc-chart-container--line { height: 220px; }
    .spc-chart-container--doughnut { height: 250px; }
    .spc-chart-container--subjects { width: 180px; height: 180px; }
    .spc-td--bar { min-width: 80px; }
    .spc-table thead th,
    .spc-table tbody td { padding: 10px; font-size: 0.78rem; }
}

@media (max-width: 360px) {
    .spc-stats { grid-template-columns: 1fr; }
}

/* ─── Print ─── */
@media print {
    .spc-dashboard { background: #fff; padding: 0; }
    .spc-panel, .spc-stat-card { box-shadow: none; border: 1px solid #ddd; break-inside: avoid; }
    .spc-stagger { opacity: 1 !important; transform: none !important; }
    .spc-stat-card:hover, .spc-panel:hover { box-shadow: none; transform: none; }
}