/* Computer Borrowing Management System - Main Stylesheet */
/* Mon National College */

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --info-color: #16a085;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --text-color: #333;
    --border-color: #ddd;
    --white: #ffffff;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f6fa;
    color: var(--text-color);
    line-height: 1.6;
}

/* Login Page Styles */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-box {
    background: var(--white);
    border-radius: 10px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 400px;
    padding: 40px;
}

.login-box h1 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 24px;
}

.login-box .subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
    font-size: 14px;
}

.login-box .logo {
    text-align: center;
    margin-bottom: 20px;
}

.login-box .logo i {
    font-size: 48px;
    color: var(--secondary-color);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--secondary-color);
    color: var(--white);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: background-color 0.3s;
    width: 100%;
}

.btn:hover {
    background-color: #2980b9;
}

.btn-secondary {
    background-color: #95a5a6;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
}

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

.btn-success:hover {
    background-color: #229954;
}

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

.btn-danger:hover {
    background-color: #c0392b;
}

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

.btn-warning:hover {
    background-color: #d68910;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 12px;
    width: auto;
}

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

.login-box .register-link {
    text-align: center;
    margin-top: 20px;
}

.login-box .register-link a {
    color: var(--secondary-color);
    text-decoration: none;
}

.login-box .register-link a:hover {
    text-decoration: underline;
}

.alert {
    padding: 12px 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

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

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

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

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Main Layout */
.main-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: var(--primary-color);
    color: var(--white);
    position: fixed;
    height: 100%;
    overflow-y: auto;
}

.sidebar-header {
    padding: 20px;
    background-color: #1a252f;
    text-align: center;
}

.sidebar-header h2 {
    font-size: 18px;
    margin-bottom: 5px;
}

.sidebar-header p {
    font-size: 12px;
    color: #bdc3c7;
}

.sidebar-menu {
    padding: 20px 0;
}

.sidebar-menu a {
    display: block;
    padding: 12px 20px;
    color: #ecf0f1;
    text-decoration: none;
    transition: background-color 0.3s;
    border-left: 3px solid transparent;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background-color: #34495e;
    border-left-color: var(--secondary-color);
}

.sidebar-menu a i {
    margin-right: 10px;
    width: 20px;
}

.sidebar-footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 20px;
    background-color: #1a252f;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 250px;
    padding: 20px;
}

.top-bar {
    background-color: var(--white);
    padding: 15px 20px;
    border-radius: 5px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar h1 {
    font-size: 24px;
    color: var(--primary-color);
}

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

.user-info .user-name {
    font-weight: 600;
}

.user-info .user-role {
    font-size: 12px;
    color: #666;
    background-color: var(--light-color);
    padding: 4px 10px;
    border-radius: 15px;
}

/* Cards */
.card {
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.card-header {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    color: var(--primary-color);
    font-size: 18px;
}

.card-body {
    padding: 20px;
}

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

.stat-card {
    background: var(--white);
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 15px;
}

.stat-card .stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--white);
}

.stat-card .stat-icon.blue {
    background-color: var(--secondary-color);
}

.stat-card .stat-icon.green {
    background-color: var(--success-color);
}

.stat-card .stat-icon.orange {
    background-color: var(--warning-color);
}

.stat-card .stat-icon.red {
    background-color: var(--accent-color);
}

.stat-card .stat-info h4 {
    font-size: 28px;
    color: var(--primary-color);
}

.stat-card .stat-info p {
    color: #666;
    font-size: 14px;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th,
table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

table th {
    background-color: #f8f9fa;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 14px;
}

table tr:hover {
    background-color: #f8f9fa;
}

table .actions {
    display: flex;
    gap: 8px;
}

/* Status Badges */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
}

.badge-pending {
    background-color: #fff3cd;
    color: #856404;
}

.badge-approved {
    background-color: #d4edda;
    color: #155724;
}

.badge-rejected {
    background-color: #f8d7da;
    color: #721c24;
}

.badge-borrowed {
    background-color: #cce5ff;
    color: #004085;
}

.badge-returned {
    background-color: #d4edda;
    color: #155724;
}

.badge-cancelled {
    background-color: #e2e3e5;
    color: #383d41;
}

.badge-available {
    background-color: #d4edda;
    color: #155724;
}

.badge-maintenance {
    background-color: #fff3cd;
    color: #856404;
}

.badge-retired {
    background-color: #e2e3e5;
    color: #383d41;
}

/* Equipment Cards */
.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.equipment-card {
    background: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.3s;
}

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

.equipment-card .equipment-image {
    height: 150px;
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 48px;
}

.equipment-card .equipment-details {
    padding: 15px;
}

.equipment-card h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.equipment-card .equipment-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 12px;
    color: #666;
}

.equipment-card .equipment-actions {
    padding: 15px;
    border-top: 1px solid var(--border-color);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.modal-content {
    background-color: var(--white);
    border-radius: 8px;
    margin: 50px auto;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.2);
}

.modal-header {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    color: var(--primary-color);
}

.modal-header .close {
    font-size: 24px;
    cursor: pointer;
    color: #666;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Filter Section */
.filter-section {
    background: var(--white);
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: end;
}

.filter-section .form-group {
    margin-bottom: 0;
    min-width: 200px;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}

.pagination a,
.pagination span {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    text-decoration: none;
    color: var(--primary-color);
}

.pagination a:hover {
    background-color: var(--secondary-color);
    color: var(--white);
    border-color: var(--secondary-color);
}

.pagination .active {
    background-color: var(--secondary-color);
    color: var(--white);
    border-color: var(--secondary-color);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state i {
    font-size: 64px;
    color: #bdc3c7;
    margin-bottom: 20px;
}

.empty-state h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.empty-state p {
    color: #666;
    margin-bottom: 20px;
}

/* Footer */
.footer {
    text-align: center;
    padding: 20px;
    color: #666;
    font-size: 14px;
}

/* Responsive - Mobile First */

/* Large Desktop */
@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }

    .equipment-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Tablet Landscape & Small Desktop */
@media (min-width: 992px) and (max-width: 1399px) {
    .equipment-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Tablet Portrait */
@media (min-width: 768px) and (max-width: 991px) {
    .sidebar {
        width: 220px;
    }

    .main-content {
        margin-left: 220px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .equipment-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .card {
        margin-bottom: 15px;
    }
}

/* Mobile */
@media (max-width: 767px) {

    /* Mobile Menu Button */
    .mobile-menu-btn {
        display: block;
        position: fixed;
        top: 15px;
        left: 15px;
        z-index: 1001;
        background: var(--primary-color);
        color: white;
        border: none;
        padding: 12px 15px;
        border-radius: 5px;
        cursor: pointer;
        font-size: 18px;
    }

    /* Sidebar mobile */
    .sidebar {
        width: 100%;
        position: fixed;
        left: -100%;
        top: 0;
        height: 100vh;
        z-index: 1000;
        transition: left 0.3s ease;
        overflow-y: auto;
    }

    .sidebar.active {
        left: 0;
    }

    .sidebar-header {
        padding: 60px 20px 20px;
    }

    .sidebar-menu {
        padding: 10px 0;
    }

    .sidebar-menu a {
        padding: 15px 20px;
        font-size: 16px;
    }

    .sidebar-footer {
        position: relative;
        padding: 20px;
    }

    /* Main content */
    .main-content {
        margin-left: 0;
        padding: 15px;
        padding-top: 70px;
    }

    .top-bar {
        padding: 10px 15px;
        flex-direction: column;
        gap: 10px;
    }

    .top-bar h1 {
        font-size: 18px;
        margin-right: 40px;
    }

    .user-info {
        width: 100%;
        justify-content: space-between;
    }

    /* Stats grid */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .stat-card {
        padding: 15px;
    }

    .stat-card .stat-icon {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }

    .stat-card .stat-info h4 {
        font-size: 22px;
    }

    /* Equipment grid */
    .equipment-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .equipment-card {
        margin-bottom: 0;
    }

    /* Cards */
    .card {
        margin-bottom: 15px;
        border-radius: 8px;
    }

    .card-header {
        padding: 12px 15px;
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }

    .card-header h3 {
        font-size: 16px;
    }

    .card-body {
        padding: 15px;
    }

    /* Tables */
    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    table {
        font-size: 12px;
    }

    table th,
    table td {
        padding: 8px 10px;
    }

    /* Forms */
    .form-row {
        grid-template-columns: 1fr;
    }

    .form-group {
        margin-bottom: 15px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 10px;
        font-size: 14px;
    }

    /* Buttons */
    .btn {
        padding: 10px 16px;
        font-size: 13px;
        width: 100%;
    }

    .btn-sm {
        padding: 6px 12px;
        font-size: 12px;
    }

    /* Alerts */
    .alert {
        padding: 10px 15px;
        font-size: 13px;
    }

    /* Filter section */
    .filter-section {
        padding: 15px;
    }

    .filter-section .form-group {
        width: 100%;
    }

    /* Tabs */
    .tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .tab {
        padding: 10px 15px;
        font-size: 13px;
        white-space: nowrap;
    }

    /* Request details */
    .request-details {
        grid-template-columns: 1fr;
    }

    /* Login box */
    .login-box {
        padding: 25px 20px;
        margin: 10px;
    }

    .login-box h1 {
        font-size: 20px;
    }

    .login-box .logo i {
        font-size: 36px;
    }

    /* Modal */
    .modal-content {
        margin: 10px;
        width: calc(100% - 20px);
    }

    /* Badges */
    .badge {
        font-size: 10px;
        padding: 3px 8px;
    }

    /* Empty state */
    .empty-state {
        padding: 40px 20px;
    }

    .empty-state i {
        font-size: 48px;
    }

    /* Action buttons in tables */
    table .actions {
        flex-direction: column;
    }

    table .actions .btn {
        margin-bottom: 5px;
        width: 100%;
    }

    /* Pagination */
    .pagination {
        flex-wrap: wrap;
    }
}

/* Extra small mobile */
@media (max-width: 480px) {
    .top-bar h1 {
        font-size: 16px;
    }

    .user-info {
        font-size: 12px;
    }

    .stat-card .stat-info h4 {
        font-size: 20px;
    }

    .card-header h3 {
        font-size: 14px;
    }
}

/* Touch device improvements */
@media (hover: none) {
    .btn:hover {
        background-color: var(--secondary-color);
    }

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

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

    .sidebar-menu a:hover,
    .sidebar-menu a.active {
        background-color: #34495e;
    }
}

/* Login Page Responsive */
@media (max-width: 480px) {
    .login-container {
        padding: 10px;
    }

    .login-box {
        padding: 20px 15px;
    }

    .login-box h1 {
        font-size: 18px;
    }

    .login-box .subtitle {
        font-size: 12px;
    }

    .login-box .form-group input {
        padding: 10px;
        font-size: 14px;
    }

    .login-box .btn {
        padding: 12px;
        font-size: 14px;
    }

    .login-links {
        flex-direction: column;
        gap: 10px;
    }
}

/* Settings Page Responsive */
@media (max-width: 767px) {
    .settings-grid {
        grid-template-columns: 1fr;
    }

    .settings-card {
        padding: 15px;
    }

    .settings-card h3 {
        font-size: 16px;
    }

    .switch {
        width: 44px;
        height: 24px;
    }

    .switch:before {
        width: 18px;
        height: 18px;
    }
}

/* Form Row */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

/* Request Details */
.request-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.request-item {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 5px;
}

.request-item label {
    display: block;
    font-size: 12px;
    color: #666;
    margin-bottom: 5px;
}

.request-item span {
    font-weight: 600;
    color: var(--primary-color);
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 20px;
}

.tab {
    padding: 12px 24px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.3s;
}

.tab:hover {
    color: var(--secondary-color);
}

.tab.active {
    border-bottom-color: var(--secondary-color);
    color: var(--secondary-color);
    font-weight: 600;
}

/* Loading */
.loading {
    text-align: center;
    padding: 40px;
}

.loading i {
    font-size: 40px;
    color: var(--secondary-color);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}