/* static/css/style.css */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --info-color: #17a2b8;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
}

/* Sidebar */
.sidebar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    box-shadow: 2px 0 5px rgba(0,0,0,0.1);
}

.sidebar .nav-link {
    padding: 0.75rem 1rem;
    margin: 0.25rem 0;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.sidebar .nav-link:hover {
    background-color: rgba(255,255,255,0.1);
    transform: translateX(5px);
}

.sidebar .nav-link.active {
    background-color: rgba(255,255,255,0.2);
    font-weight: bold;
}

/* Main content */
.main-content {
    background-color: #f8f9fa;
    min-height: 100vh;
}

/* Cards */
.card {
    border: none;
    border-radius: 1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.card-header {
    border-radius: 1rem 1rem 0 0 !important;
    border-bottom: none;
}

/* Buttons */
.btn {
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
}

/* Forms */
.form-control {
    border-radius: 0.5rem;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,0.25);
}

.input-group-text {
    border-radius: 0.5rem 0 0 0.5rem;
    border: 2px solid #e9ecef;
    background-color: #f8f9fa;
}

/* Alerts */
.alert {
    border-radius: 0.75rem;
    border: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* Jumbotron */
.jumbotron {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 1rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        min-height: auto;
    }
    
    .main-content {
        margin-top: 1rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0056b3;
}

/* Loading spinner */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Password field */
.password-field {
    font-family: 'Courier New', monospace;
    letter-spacing: 0.1em;
}

/* Phone number formatting */
.phone-display {
    font-family: 'Courier New', monospace;
    font-weight: bold;
    color: var(--primary-color);
}

/* Status indicators */
.status-online {
    color: var(--success-color);
}

.status-offline {
    color: var(--danger-color);
}

.status-warning {
    color: var(--warning-color);
}

/* Gradient backgrounds */
.bg-gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.bg-gradient-success {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
}

.bg-gradient-info {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* Custom utilities */
.text-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-lg {
    box-shadow: 0 1rem 3rem rgba(0,0,0,0.175) !important;
}

/* Print styles */
@media print {
    .sidebar,
    .btn,
    .alert {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0 !important;
    }
}