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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #3b82f6;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: var(--bg-gradient);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Página de Registro */
.container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.register-box {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 100%;
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logo {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 20px;
}

h1 {
    text-align: center;
    color: #1f2937;
    font-size: 28px;
    margin-bottom: 10px;
}

.subtitle {
    text-align: center;
    color: #6b7280;
    margin-bottom: 30px;
}

.register-form {
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: #374151;
    margin-bottom: 8px;
    font-size: 14px;
}

.form-group label svg {
    color: var(--primary-color);
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: #6b7280;
    color: white;
}

.btn-secondary:hover {
    background: #4b5563;
}

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

.btn-success:hover {
    background: #059669;
}

.btn-warning {
    background: var(--warning-color);
    color: white;
    padding: 8px 16px;
    font-size: 14px;
    width: auto;
    margin-left: 10px;
}

.alert {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #f59e0b;
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #3b82f6;
}

.info-box {
    background: #f9fafb;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    color: #374151;
}

.info-box strong {
    color: var(--primary-color);
    font-size: 20px;
}

footer {
    background: rgba(0, 0, 0, 0.2);
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 20px;
}

/* Panel de Administración */
.admin-body {
    background: #f3f4f6;
}

.admin-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 20px;
}

.admin-header {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    text-align: center;
}

.admin-header h1 {
    font-size: 36px;
    margin-bottom: 5px;
}

.admin-header p {
    color: #6b7280;
    font-size: 16px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    font-size: 40px;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f3f4f6;
    border-radius: 12px;
}

.stat-content h3 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-content p {
    color: #6b7280;
    font-size: 14px;
}

.admin-section {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.admin-section h2 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #1f2937;
}

.draw-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.table-responsive {
    overflow-x: auto;
    margin: 20px 0;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.admin-table thead {
    background: #f9fafb;
}

.admin-table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: #374151;
    border-bottom: 2px solid #e5e7eb;
}

.admin-table td {
    padding: 12px;
    border-bottom: 1px solid #e5e7eb;
}

.admin-table tbody tr:hover {
    background: #f9fafb;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-pending {
    background: #fef3c7;
    color: #92400e;
}

.badge-info {
    background: #dbeafe;
    color: #1e40af;
}

.inline-input {
    padding: 6px 10px;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    font-size: 14px;
    width: 300px;
}

.btn-icon {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    padding: 5px;
    transition: transform 0.2s;
}

.btn-icon:hover {
    transform: scale(1.2);
}

.add-prize-form {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid #e5e7eb;
}

.export-actions {
    margin-top: 20px;
}

.qr-container {
    text-align: center;
    padding: 20px;
    background: #f9fafb;
    border-radius: 10px;
}

#qrcode {
    display: inline-block;
    margin-bottom: 15px;
}

#qrcode img {
    border-radius: 10px;
    box-shadow: var(--shadow);
}

/* Responsive */
@media (max-width: 768px) {
    .register-box {
        padding: 30px 20px;
    }
    
    h1 {
        font-size: 24px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .draw-actions {
        flex-direction: column;
    }
    
    .draw-actions form {
        width: 100%;
    }
    
    .draw-actions button {
        width: 100%;
    }
    
    .inline-input {
        width: 200px;
    }
}