* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.section {
    animation: fadeIn 0.5s ease;
}

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

h1, h2 {
    color: #4F46E5;
    margin-bottom: 20px;
}

input, textarea, select {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: #4F46E5;
}

button {
    background: #4F46E5;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.2s, background 0.2s;
}

button:hover {
    background: #4338CA;
    transform: translateY(-2px);
}

.btn-primary {
    background: #10B981;
}

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

.btn-secondary {
    background: #F59E0B;
}

.btn-logout {
    background: #EF4444;
}

.btn-install {
    background: #8B5CF6;
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.qr-container {
    text-align: center;
    margin: 20px 0;
}

.actions {
    display: flex;
    gap: 15px;
    margin: 20px 0;
}

.actions button {
    flex: 1;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    border-radius: 15px;
    text-align: center;
}

.stat-card h3 {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 10px;
}

.stat-card p {
    font-size: 32px;
    font-weight: bold;
}

.admin-tabs {
    display: flex;
    gap: 10px;
    margin: 20px 0;
    flex-wrap: wrap;
}

.tab-btn {
    background: #e5e7eb;
    color: #374151;
}

.tab-btn.active {
    background: #4F46E5;
    color: white;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.data-table th,
.data-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}

.data-table th {
    background: #f3f4f6;
    font-weight: 600;
}

.straordinario {
    color: #F59E0B;
    font-weight: bold;
}

.alert {
    padding: 15px;
    border-radius: 10px;
    margin: 10px 0;
}

.alert-warning {
    background: #FEF3C7;
    color: #92400E;
    border-left: 4px solid #F59E0B;
}

.alert-success {
    background: #D1FAE5;
    color: #065F46;
    border-left: 4px solid #10B981;
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .actions {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .admin-tabs {
        flex-direction: column;
    }
    
    .data-table {
        font-size: 12px;
    }
}