@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root,
html[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: rgba(255, 255, 255, 0.85);
    --menu-bg: #ffffff;
    --accent-color: #2563eb;
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --accent-glow: rgba(37, 99, 235, 0.12);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --border-color: #e2e8f0;
    --card-bg: #ffffff;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --shadow-premium: 0 20px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
}

html[data-theme="dark"] {
    --bg-primary: #0a0e17;
    --bg-secondary: rgba(18, 26, 44, 0.85);
    --menu-bg: #111827;
    --accent-color: #3b82f6;
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    --accent-glow: rgba(59, 130, 246, 0.2);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --border-color: rgba(255, 255, 255, 0.08);
    --card-bg: rgba(255, 255, 255, 0.03);
    --success-color: #059669;
    --danger-color: #dc2626;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --shadow-premium: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-primary);
    background-image:
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.06) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(37, 99, 235, 0.04) 0px, transparent 50%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Glassmorphism containers */
.glass-container {
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    box-shadow: var(--shadow-premium);
}

/* Auth Cards */
.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.auth-card {
    width: 100%;
    max-width: 460px;
    padding: 40px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.7);
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-logo {
    font-size: 2.6rem;
    font-weight: 800;
    background: linear-gradient(to right, #2563eb, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
    letter-spacing: -1px;
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 30px;
}

/* Form Styles */
.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.form-input-icon {
    position: absolute;
    left: 16px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.form-input {
    width: 100%;
    padding: 12px 16px 12px 42px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px var(--accent-glow);
}

.btn-primary {
    width: 100%;
    padding: 14px;
    background: var(--accent-gradient);
    border: none;
    border-radius: 14px;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.25);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(37, 99, 235, 0.35);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Tabs */
.tabs-header {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 30px;
    gap: 10px;
}

.tab-btn {
    flex: 1;
    padding: 12px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    transition: color 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.tab-btn.active {
    color: var(--accent-color);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-color);
    border-radius: 3px 3px 0 0;
}

/* Dashboard Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 5%;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
    backdrop-filter: blur(16px);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 15px rgba(15, 23, 42, 0.03);
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-brand i {
    color: var(--accent-color);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 15px;
}

.nav-user {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Hamburger menu toggle button */
.menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.25rem;
    padding: 8px 12px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.menu-toggle:hover {
    background: rgba(15, 23, 42, 0.03);
}

.btn-profile {
    padding: 9px 16px;
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.15);
    border-radius: 10px;
    color: var(--accent-color);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.btn-logout {
    padding: 9px 16px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-logout:hover {
    border-color: var(--danger-color);
    color: var(--danger-color);
    background: rgba(220, 38, 38, 0.03);
}

/* Catalog Layout */
.main-content {
    padding: 40px 5%;
}

.section-header {
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
}

.section-info {
    flex: 1;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Grids: Category cards (sleeping) vs. Book cards (standing) */
.grid-container.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
}

.grid-container.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 30px;
}

/* Shared Card Item Styles */
.card-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.card-item:hover {
    transform: translateY(-5px);
    border-color: rgba(37, 99, 235, 0.25);
    box-shadow: var(--shadow-lg);
}

/* Category Card Layout (Sleeping Rectangle - Horizontal) */
.card-item.category-card {
    display: flex;
    flex-direction: row;
    align-items: center;
    padding: 12px;
    gap: 18px;
}

.card-item.category-card .card-thumb-wrapper {
    /* width: 90px;
    height: 60px; */
    width: 140px;
    height: 100px;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    flex-shrink: 0;
    background: rgba(15, 23, 42, 0.02);
    border: 1px solid rgba(15, 23, 42, 0.05);
}

.card-item.category-card .card-thumb {
    width: 100%;
    height: 100%;
    /* object-fit: cover; */
    transition: transform 0.4s ease;
}

.card-item.category-card:hover .card-thumb {
    transform: scale(1.05);
}

.card-item.category-card .card-info {
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0;
}

.card-item.category-card .card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.card-item.category-card .card-tag {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 700;
    width: fit-content;
}

/* Book Card Layout (Standing Rectangle - Vertical) */
.card-item.book-card {
    display: flex;
    flex-direction: column;
}

.card-item.book-card .card-thumb-wrapper {
    width: 100%;
    padding-top: 135%;
    position: relative;
    background: rgba(15, 23, 42, 0.02);
}

.card-item.book-card .card-thumb {
    position: absolute;
    top: 12px;
    left: 12px;
    width: calc(100% - 24px);
    height: calc(100% - 24px);
    object-fit: cover;
    transition: transform 0.5s ease;
    border-radius: 8px;
}

.card-item.book-card:hover .card-thumb {
    transform: scale(1.03);
}

.card-item.book-card .card-info {
    padding: 16px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.card-item.book-card .card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-item.book-card .card-tag {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 700;
}

/* Breadcrumbs style */
.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 20px;
    background: var(--card-bg);
    padding: 10px 18px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    width: fit-content;
}

.breadcrumb-item {
    cursor: pointer;
    transition: color 0.2s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

.breadcrumb-item:hover {
    color: var(--accent-color);
}

.breadcrumb-separator {
    color: #cbd5e1;
    font-size: 0.8rem;
}

/* Premium Modal Dialog (Profile Details Drawer) */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.4);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 200;
    backdrop-filter: blur(8px);
    animation: fadeInOverlay 0.3s ease-out;
}

@keyframes fadeInOverlay {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.modal-content {
    background: var(--menu-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    width: 90%;
    max-width: 520px;
    padding: 32px;
    box-shadow: var(--shadow-premium);
    animation: slideUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    max-height: 90vh;
    overflow-y: auto;
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.modal-title {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-title i {
    color: var(--accent-color);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.3rem;
    cursor: pointer;
    transition: color 0.2s ease;
}

.modal-close:hover {
    color: var(--danger-color);
}

/* Profile Content Info Cards */
.profile-grid {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.profile-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.profile-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: rgba(37, 99, 235, 0.08);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.1rem;
    color: var(--accent-color);
    flex-shrink: 0;
}

.profile-card-details {
    flex-grow: 1;
}

.profile-card-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.profile-card-value {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Theme switch select component (Enhanced select dropdown) */
.theme-select {
    padding: 8px 14px;
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.theme-select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

select.theme-select option {
    background: var(--menu-bg);
    color: var(--text-primary);
}

/* Badges list for active modules */
.modules-badges-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}

.module-pill {
    padding: 4px 10px;
    background: var(--accent-gradient);
    color: white;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 700;
}

/* Fullscreen Reader */
.reader-frame {
    width: 100%;
    height: 100vh;
    border: none;
    background: white;
}

.reader-header {
    position: absolute;
    top: 45px;
    left: 15px;
    z-index: 10000;
    display: flex;
    gap: 12px;
}

/* Reader Buttons */
.btn-back,
.btn-fullscreen {
    padding: 10px 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 10px;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-back:hover,
.btn-fullscreen:hover {
    background: var(--text-primary);
    color: var(--card-bg);
}

/* Status Notifications */
.notification {
    padding: 12px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    display: none;
}

.notification.success {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: #059669;
}

.notification.error {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #dc2626;
}

/* Admin Table */
.admin-table-container {
    width: 100%;
    overflow-x: auto;
    margin-top: 20px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    box-shadow: var(--shadow-sm);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.admin-table th,
.admin-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    background: var(--bg-primary);
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    font-weight: 600;
}

.admin-table tr:hover td {
    background: var(--bg-primary);
}

.status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-badge.active {
    background: rgba(16, 185, 129, 0.08);
    color: #059669;
}

.status-badge.expired {
    background: rgba(239, 68, 68, 0.08);
    color: #dc2626;
}

/* Responsive Styles */
@media(max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        right: 5%;
        width: 220px;
        background: var(--menu-bg);
        /* Solid background to prevent dark mode transparency */
        border: 1px solid var(--border-color);
        border-radius: 18px;
        padding: 16px;
        gap: 12px;
        box-shadow: var(--shadow-lg);
        align-items: stretch;
    }

    .nav-menu.show {
        display: flex;
    }

    .btn-profile,
    .btn-logout {
        width: 100%;
        justify-content: center;
    }

    .nav-user {
        text-align: center;
        margin-bottom: 8px;
        padding-bottom: 8px;
        border-bottom: 1px solid var(--border-color);
    }

    .grid-container.books-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 15px !important;
    }

    .grid-container.categories-grid {
        grid-template-columns: 1fr !important;
        gap: 15px !important;
    }
}