:root {
    --bg-dark: #0a111e;
    --card-bg: #101a2b;
    --accent-red: #d91424;
    --text-muted: #94a3b8;
}

body {
    background-color: var(--bg-dark);
    color: #ffffff;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* Header / Navbar */
.top-header {
    background-color: var(--bg-dark);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-socio {
    background-color: var(--accent-red);
    color: #fff;
    font-weight: 700;
    text-transform: uppercase;
    padding: 10px 20px;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.btn-socio:hover {
    background-color: #b80f1d;
    color: #fff;
}

/* Hero Section */
.hero-section {
    position: relative;
    background: linear-gradient(180deg, rgba(10,17,30,0.5) 0%, rgba(10,17,30,0.95) 100%), 
                url('/img/hero-bg.jpg') center/cover no-repeat;
    padding: 70px 0 40px;
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 900;
    line-height: 1.15;
    text-transform: uppercase;
}

.hero-title span {
    color: var(--accent-red);
    display: block;
}

.anniversary-title {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1;
}

.anniversary-sub {
    font-family: 'Brush Script MT', cursive, sans-serif;
    color: var(--accent-red);
    font-size: 2rem;
}

/* Ribbon informativo */
.stats-ribbon {
    background-color: #070c16;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Tarjetas y componentes */
.card-dark {
    background-color: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    overflow: hidden;
}

.badge-categoria {
    background-color: var(--accent-red);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 4px 8px;
    border-radius: 3px;
    display: inline-block;
}

.date-box {
    background-color: var(--accent-red);
    color: #fff;
    font-weight: bold;
    text-align: center;
    border-radius: 4px;
    min-width: 55px;
    padding: 6px 10px;
}

/* Footer */
footer {
    background-color: #060a12;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #ffffff;
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.2s ease;
}

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

.sponsor-logo {
    filter: brightness(0) invert(1);
    opacity: 0.7;
    transition: opacity 0.2s ease;
    max-height: 35px;
}

.sponsor-logo:hover {
    opacity: 1;
}

.social-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.05);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    text-decoration: none;
    transition: background-color 0.2s ease;
}

.social-icon:hover {
    background-color: var(--accent-red);
    color: #ffffff;
}

/* Bloque Multimedia Lateral */
.multimedia-card {
    background-color: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    overflow: hidden;
}

.multimedia-thumb {
    height: 110px;
    object-fit: cover;
    width: 100%;
}

.multimedia-btn {
    background-color: #0d1522;
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    text-align: center;
    padding: 8px 4px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-decoration: none;
    display: block;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.multimedia-btn:hover {
    background-color: var(--accent-red);
    color: #ffffff;
}