:root {
    --fondo: #0f172a;
    --tarjeta: #1e293b;
    --primario: #e63946;
    --acento: #fbbf24;
    --texto: #f1faee;
}

body {
    background-color: var(--fondo);
    color: var(--texto);
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

nav {
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 3px solid var(--primario);
    padding: 1rem;
    text-align: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav a {
    color: white;
    margin: 0 15px;
    text-decoration: none;
    font-weight: bold;
    text-transform: uppercase;
    transition: 0.3s;
}

nav a:hover {
    color: var(--primario);
    text-shadow: 0 0 8px var(--primario);
}

.container {
    max-width: 900px;
    margin: 30px auto;
    padding: 20px;
    flex: 1;
}

h1, h2 {
    color: var(--texto);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.card {
    background: var(--tarjeta);
    border-radius: 15px;
    padding: 20px;
    border: 1px solid #334155;
    transition: 0.4s;
}

.card:hover {
    border-color: var(--primario);
    box-shadow: 0 0 20px rgba(230, 57, 70, 0.3);
}

footer {
    padding: 20px;
    background: #0a0f1d;
    text-align: center;
    border-top: 1px solid #1e293b;
}

.admin-link {
    color: #444;
    text-decoration: none;
    font-size: 0.7rem;
}