/**
 * Bookmark Manager - Custom Styles
 * Mobile-first responsive design
 */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --border-radius: 0.5rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --box-shadow-lg: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

/* Global Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* Navbar Styles */
.navbar {
    box-shadow: var(--box-shadow);
    background-color: #fff !important;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color) !important;
}

.navbar-brand img {
    height: 40px;
    margin-right: 0.5rem;
}

.nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

.nav-link.active {
    color: var(--primary-color) !important;
    font-weight: 600;
}

/* Card Styles */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-lg);
}

.card-img-top {
    height: 200px;
    object-fit: cover;
    border-top-left-radius: var(--border-radius);
    border-top-right-radius: var(--border-radius);
}

.bookmark-card {
    cursor: pointer;
}

.bookmark-card .card-body {
    padding: 1.25rem;
}

.bookmark-card .card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.bookmark-card .card-text {
    font-size: 0.9rem;
    color: #6c757d;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.bookmark-url {
    font-size: 0.85rem;
    color: var(--primary-color);
    text-decoration: none;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.bookmark-url:hover {
    text-decoration: underline;
}

/* Badge Styles */
.badge {
    font-weight: 500;
    padding: 0.35em 0.65em;
    border-radius: 0.25rem;
}

.hashtag-badge {
    background-color: var(--light-color);
    color: var(--dark-color);
    margin-right: 0.25rem;
    margin-bottom: 0.25rem;
    display: inline-block;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.hashtag-badge:hover {
    background-color: var(--primary-color);
    color: #fff;
}

/* Button Styles */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    padding: 0.5rem 1.25rem;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}

.btn-outline-primary:hover {
    transform: translateY(-2px);
}

/* Form Styles */
.form-control, .form-select {
    border-radius: var(--border-radius);
    border: 1px solid #dee2e6;
    padding: 0.625rem 0.875rem;
}

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

.form-label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

/* Search Bar */
.search-bar {
    max-width: 600px;
    margin: 0 auto;
}

.search-bar .input-group {
    box-shadow: var(--box-shadow);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.search-bar .form-control {
    border: none;
    padding: 0.75rem 1rem;
}

.search-bar .btn {
    border: none;
    padding: 0.75rem 1.5rem;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0b5ed7 100%);
    color: #fff;
    padding: 3rem 0;
    margin-bottom: 2rem;
}

.hero-section h1 {
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero-section p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Sidebar */
.sidebar {
    background-color: #fff;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.sidebar h5 {
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.sidebar .list-group-item {
    border: none;
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.sidebar .list-group-item:hover {
    background-color: var(--light-color);
}

.sidebar .list-group-item.active {
    background-color: var(--primary-color);
    color: #fff;
}

/* Footer */
footer {
    background-color: var(--dark-color);
    color: #fff;
    padding: 2rem 0;
    margin-top: 3rem;
}

footer a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--primary-color);
}

/* Pagination */
.pagination {
    margin-top: 2rem;
}

.page-link {
    color: var(--primary-color);
    border-radius: 0.25rem;
    margin: 0 0.125rem;
}

.page-link:hover {
    background-color: var(--primary-color);
    color: #fff;
}

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

/* Loading Spinner */
.spinner-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
}

.empty-state i {
    font-size: 4rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.empty-state h4 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--secondary-color);
}

/* Modal Styles */
.modal-content {
    border-radius: var(--border-radius);
    border: none;
}

.modal-header {
    background-color: var(--primary-color);
    color: #fff;
    border-top-left-radius: var(--border-radius);
    border-top-right-radius: var(--border-radius);
}

.modal-header .btn-close {
    filter: invert(1);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero-section {
        padding: 2rem 0;
    }

    .hero-section h1 {
        font-size: 1.75rem;
    }

    .card-img-top {
        height: 150px;
    }

    .sidebar {
        margin-bottom: 1rem;
    }

    .navbar-brand {
        font-size: 1.25rem;
    }

    .navbar-brand img {
        height: 32px;
    }
}

@media (max-width: 576px) {
    .hero-section h1 {
        font-size: 1.5rem;
    }

    .hero-section p {
        font-size: 1rem;
    }

    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }

    .card-body {
        padding: 1rem;
    }
}

/* Utility Classes */
.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.text-truncate-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.cursor-pointer {
    cursor: pointer;
}

.hover-shadow:hover {
    box-shadow: var(--box-shadow-lg) !important;
}

/* Category Icon */
.category-icon {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--light-color);
    border-radius: 50%;
    margin-right: 0.75rem;
}

.category-icon i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

/* Member Avatar */
.member-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.member-avatar-lg {
    width: 80px;
    height: 80px;
}

/* Bookmark Meta */
.bookmark-meta {
    font-size: 0.85rem;
    color: var(--secondary-color);
    margin-top: 0.5rem;
}

.bookmark-meta i {
    margin-right: 0.25rem;
}

/* Admin Styles */
.admin-sidebar {
    background-color: var(--dark-color);
    min-height: 100vh;
    padding: 1.5rem 0;
}

.admin-sidebar .nav-link {
    color: rgba(255, 255, 255, 0.8);
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
}

.admin-sidebar .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
}

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

.admin-sidebar .nav-link i {
    margin-right: 0.75rem;
    width: 20px;
}

/* Stats Card */
.stats-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0b5ed7 100%);
    color: #fff;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
}

.stats-card h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stats-card p {
    margin: 0;
    opacity: 0.9;
}

.stats-card.success {
    background: linear-gradient(135deg, var(--success-color) 0%, #157347 100%);
}

.stats-card.warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #ffca2c 100%);
}

.stats-card.danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #b02a37 100%);
}