/* Estilos generales - Tema moderno */
:root {
    --color-primary: #2563eb;      /* Azul vibrante */
    --color-secondary: #4f46e5;    /* Índigo */
    --color-accent: #22c55e;       /* Verde fresco */
    --color-danger: #ef4444;       /* Rojo */
    --color-background: #f8fafc;   /* Fondo claro */
    --color-text: #1e293b;         /* Texto oscuro */
    --color-card: #ffffff;         /* Fondo tarjetas */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --radius-lg: 12px;
    --radius-md: 8px;
}

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Header con gradiente */
header {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: -20px;
    width: 60px;
    height: 60px;
    background: rgba(255,255,255,0.1);
    transform: rotate(45deg);
}

/* Grid de ganadores */
.ganadores {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

/* Tarjetas con efecto 3D */
.sorteo-box {
    background: var(--color-card);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    border: 1px solid rgba(0,0,0,0.05);
}

.sorteo-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px rgba(0,0,0,0.1);
}

.sorteo-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* Lista de participantes estilo moderno */
.participantes {
    background: var(--color-card);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.participantes ul {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.participantes li {
    padding: 0.8rem 1rem;
    background: var(--color-background);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.2s ease;
}

.participantes li:hover {
    background: #f1f5f9;
    transform: translateX(5px);
}

/* Botones y elementos interactivos */
.admin-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: var(--color-accent);
    color: white !important;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.admin-link:hover {
    background: #16a34a;
    transform: translateY(-2px);
}

button {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    background: var(--color-primary);
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

button:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

/* Formularios modernos */
input[type="text"] {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

input[type="text"]:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    outline: none;
}

/* Animaciones */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

main {
    animation: fadeIn 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 1rem;
    }
    header {
        padding: 1.5rem;
    }
    .ganadores {
        grid-template-columns: 1fr;
    }
}

/* Efecto neumorfismo en tarjetas */
.sorteo-box {
    background: var(--color-card);
    box-shadow: 8px 8px 16px #d1d5db,
               -8px -8px 16px #ffffff;
}

/* Badges para los ganadores */
.sorteo-box li {
    position: relative;
    padding-left: 1.5rem;
}

.sorteo-box li::before {
    content: "🎉";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
}

/* Estilos para el historial */
.historial {
    background: var(--color-card);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-top: 2rem;
}

.historial table {
    width: 100%;
    border-collapse: collapse;
}

.historial th,
.historial td {
    padding: 0.8rem;
    border: 1px solid #e2e8f0;
    text-align: left;
}

.historial th {
    background-color: #f1f5f9;
}

/* Estilos específicos para el área de administración */
.admin-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 1.5rem;
    background: var(--color-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.admin-header h1 {
    margin: 0;
}
.botones-nav {
    display: flex;
    gap: 0.5rem;
}
.botones-nav a {
    padding: 0.5rem 1rem;
    background: var(--color-accent);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: background 0.2s ease;
}
.botones-nav a:hover {
    background: #16a34a;
}
.seccion-admin {
    margin-bottom: 2rem;
}
.botones-sorteo {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}
.botones-sorteo a {
    flex: 1;
    text-align: center;
}