/* Variables de colores para tema musical */
:root {
    --primary: #ff6b6b;
    --secondary: #4ecdc4;
    --accent: #ffd166;
    --dark: #1a1a2e;
    --light: #f8f9fa;
    --success: #06d6a0;
    --danger: #ef476f;
}

/* Reset y estilos base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: rgba(26, 26, 46, 0.95);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-icon {
    font-size: 2rem;
    color: var(--accent);
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
}

.countdown {
    background: var(--accent);
    color: var(--dark);
    padding: 8px 15px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.9rem;
}

/* Main content */
.main-content {
    padding: 3rem 0;
}

.hero {
    text-align: center;
    margin-bottom: 3rem;
    color: white;
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Card styles */
.card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    margin-bottom: 2rem;
}

.card-header {
    text-align: center;
    margin-bottom: 2rem;
}

.card-header h3 {
    color: var(--dark);
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.card-header p {
    color: #666;
}

/* Form styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.1);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.checkbox-group input {
    margin-top: 5px;
}

.checkbox-group label {
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Button styles */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: #ff5252;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 107, 107, 0.4);
}

.btn-secondary {
    background: var(--secondary);
    color: white;
}

.btn-secondary:hover {
    background: #3dbeb6;
}

.btn-accent {
    background: var(--accent);
    color: var(--dark);
}

.btn-accent:hover {
    background: #ffc44d;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Stats section */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
    color: white;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Confirmation page */
.confirmation {
    text-align: center;
    padding: 3rem 0;
}

.confirmation-icon {
    font-size: 4rem;
    color: var(--success);
    margin-bottom: 1rem;
}

.participation-number {
    background: var(--accent);
    color: var(--dark);
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 700;
    display: inline-block;
    margin: 1rem 0;
}

/* Admin panel */
.admin-header {
    display: flex;
    justify-content: between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.search-box {
    flex: 1;
    min-width: 300px;
}

.table-responsive {
    overflow-x: auto;
}

.participants-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.participants-table th,
.participants-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #e1e5e9;
}

.participants-table th {
    background: var(--light);
    font-weight: 600;
}

.winner-highlight {
    background: linear-gradient(45deg, var(--accent), #ffeb3b) !important;
    font-weight: 700;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.02);
    }

    100% {
        transform: scale(1);
    }
}

/* Alert messages */
.alert {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

/* Footer */
.footer {
    background: var(--dark);
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

/* Responsive design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .hero h2 {
        font-size: 2rem;
    }

    .card {
        padding: 1.5rem;
    }

    .admin-header {
        flex-direction: column;
        align-items: stretch;
    }

    .search-box {
        min-width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero h2 {
        font-size: 1.8rem;
    }

    .stats {
        grid-template-columns: 1fr;
    }
}

/* Efectos para la selección de ganador */
@keyframes drumRoll {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    25% {
        transform: translateY(-5px) rotate(-5deg);
    }

    75% {
        transform: translateY(-5px) rotate(5deg);
    }
}

@keyframes tensionPulse {

    0%,
    100% {
        transform: scale(1);
        box-shadow: 0 0 20px rgba(255, 209, 102, 0.5);
    }

    50% {
        transform: scale(1.05);
        box-shadow: 0 0 40px rgba(255, 209, 102, 0.8);
    }
}

@keyframes scrollParticipants {
    0% {
        transform: translateY(100%);
    }

    100% {
        transform: translateY(-100%);
    }
}

/* Estilos para la página de resultado */
.winner-reveal {
    animation: fadeInWinner 1s ease-out;
}

@keyframes fadeInWinner {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Efectos de impresión */
@media print {
    .action-buttons {
        display: none !important;
    }

    .winner-reveal {
        background: white !important;
        color: black !important;
    }

    .winner-card {
        box-shadow: none !important;
        border: 2px solid #000 !important;
    }
}