/* assets/css/style.css */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
}

/* General Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* Navigation */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

/* Cards */
.card {
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px rgba(0,0,0,.15);
}

/* Buttons */
.btn {
    border-radius: 5px;
    padding: 8px 20px;
    font-weight: 500;
}

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

.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
}

/* Forms */
.form-control {
    border-radius: 5px;
    border: 1px solid #dee2e6;
    padding: 10px 15px;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* Tables */
.table {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.table thead th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    border-bottom: none;
}

/* Alerts */
.alert {
    border-radius: 10px;
    border: none;
    padding: 15px 20px;
}

/* Pagination */
.pagination .page-link {
    color: var(--primary-color);
    border: none;
    margin: 0 3px;
    border-radius: 5px;
}

.pagination .page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.pagination .page-link:hover {
    background-color: #e9ecef;
}

/* Admin Sidebar */
.sidebar {
    padding: 20px 0;
    background-color: #f8f9fa;
    border-right: 1px solid #dee2e6;
}

.sidebar .nav-link {
    color: #333;
    padding: 10px 20px;
    margin: 2px 0;
    border-radius: 5px;
}

.sidebar .nav-link:hover {
    background-color: #e9ecef;
}

.sidebar .nav-link.active {
    background-color: var(--primary-color);
    color: white;
}

.sidebar .nav-link i {
    margin-right: 10px;
    width: 20px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        position: static;
        height: auto;
        padding: 10px;
    }
    
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    h1 {
        font-size: 1.8rem;
    }
}

/* Loading Spinner */
.spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* File Upload */
.file-upload {
    position: relative;
    display: inline-block;
}

.file-upload input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.file-upload-label {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 5px;
    cursor: pointer;
}

.file-upload-label:hover {
    background-color: #0b5ed7;
}

/* Search Box */
.search-box {
    position: relative;
}

.search-box input {
    padding-right: 40px;
}

.search-box button {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    border: none;
    background: none;
    padding: 0 15px;
    color: #6c757d;
}

.search-box button:hover {
    color: var(--primary-color);
}