/* =========================================
   BASE · variables, reset, typography
   ========================================= */
:root {
    --primary: #0f172a;
    --secondary: #334155;
    --accent: #f43f5e;
    --highlight: #3b82f6;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;

    /* Colombia flag */
    --co-yellow: #fcd116;
    --co-blue:   #003893;
    --co-red:    #ce1126;

    --bg-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    --card-bg: rgba(255, 255, 255, 0.85);
    --card-border: rgba(255, 255, 255, 0.6);
    --text: #1e293b;
    --text-light: #64748b;
    --divider: #e2e8f0;
    --bar-bg: #f1f5f9;

    --c-paloma: #3b82f6;
    --c-cepeda: #a855f7;
    --c-tigre:  #ef4444;
}
body.dark {
    --primary: #f1f5f9;
    --secondary: #cbd5e1;
    --bg-gradient: linear-gradient(135deg, #0b1224 0%, #111827 100%);
    --card-bg: rgba(30, 41, 59, 0.55);
    --card-border: rgba(255, 255, 255, 0.08);
    --text: #f1f5f9;
    --text-light: #94a3b8;
    --divider: rgba(148, 163, 184, 0.15);
    --bar-bg: rgba(148, 163, 184, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    background: var(--bg-gradient);
    color: var(--text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    transition: background 0.4s ease, color 0.4s ease;
}

/* Skip link for a11y */
.skip-link {
    position: absolute; top: -40px; left: 0;
    background: var(--primary); color: #fff;
    padding: 8px 14px; border-radius: 0 0 8px 0;
    z-index: 9999; font-weight: 600;
}
.skip-link:focus { top: 0; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }
body.dark ::-webkit-scrollbar-thumb { background: #475569; }

/* Footer */
.footer {
    background-color: var(--primary);
    color: #94a3b8;
    text-align: center;
    padding: 26px 20px;
    font-size: 13px;
    margin-top: auto;
    font-weight: 300;
    line-height: 1.6;
}
.footer .footer-flag {
    display: inline-block; width: 14px; height: 10px;
    border-radius: 2px; overflow: hidden; vertical-align: middle;
    margin: 0 4px;
    background: linear-gradient(to bottom,
        var(--co-yellow) 0%, var(--co-yellow) 50%,
        var(--co-blue)   50%, var(--co-blue)   75%,
        var(--co-red)    75%, var(--co-red)    100%);
}
body.dark .footer { background-color: #050912; }