/*
 * EPUB Bibliotheek - Luxe Bibliotheek Design
 * Een warm, klassiek design geïnspireerd door oude boekwinkels
 */

/* ============================================
   Google Fonts Import
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Outfit:wght@300;400;500;600;700&display=swap');

/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
    /* Warme bibliotheek kleuren */
    --mahogany: #4a2c2a;
    --mahogany-light: #5d3a38;
    --mahogany-dark: #3a1f1d;
    --walnut: #5d4037;
    --oak: #8b6914;
    --gold: #c9a227;
    --gold-light: #d4af37;
    --gold-muted: #b8860b;
    --cream: #faf7f2;
    --cream-dark: #f5f0e8;
    --parchment: #f8f4e9;
    --leather: #8b4513;
    --ink: #1a1614;
    --ink-soft: #2d2926;
    --ink-muted: #5c5552;
    --burgundy: #722f37;
    --forest: #2d4a3e;

    /* Functionele kleuren */
    --success: #3d6b4f;
    --success-bg: #e8f5e9;
    --danger: #8b3a3a;
    --danger-bg: #fbeaea;
    --warning: #8b6914;
    --warning-bg: #fef8e7;
    --info: #3d5a80;
    --info-bg: #e8f0f8;

    /* Schaduwen */
    --shadow-soft: 0 2px 8px rgba(26, 22, 20, 0.06);
    --shadow-medium: 0 4px 20px rgba(26, 22, 20, 0.1);
    --shadow-strong: 0 8px 40px rgba(26, 22, 20, 0.15);
    --shadow-book: 4px 4px 15px rgba(26, 22, 20, 0.2),
                   0 0 5px rgba(26, 22, 20, 0.1);
    --shadow-hover: 0 12px 50px rgba(26, 22, 20, 0.2);
    --shadow-inset: inset 0 2px 4px rgba(26, 22, 20, 0.06);
    --shadow-gold: 0 0 20px rgba(201, 162, 39, 0.3);

    /* Typografie */
    --font-display: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
    --font-body: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Radii */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Layout */
    --sidebar-width: 280px;
    --header-height: 70px;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    line-height: 1.6;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--cream);
    color: var(--ink);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Subtiele textuur achtergrond */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%' height='100%' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.02;
    pointer-events: none;
    z-index: 0;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.3;
    color: var(--ink);
    letter-spacing: -0.01em;
}

h1 { font-size: 2.5rem; font-weight: 700; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }

p {
    font-weight: 400;
    line-height: 1.7;
}

a {
    color: var(--mahogany);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--gold);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

::selection {
    background: var(--gold);
    color: var(--ink);
}

/* ============================================
   Layout - Page Wrapper & Sidebar
   ============================================ */
.page-wrapper {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--mahogany) 0%, var(--mahogany-dark) 100%);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    z-index: 100;
    box-shadow: 4px 0 30px rgba(26, 22, 20, 0.3);
}

/* Decoratieve lijn aan de rechterkant */
.sidebar::after {
    content: '';
    position: absolute;
    right: 0;
    top: var(--space-2xl);
    bottom: var(--space-2xl);
    width: 1px;
    pointer-events: none; /* Voorkom dat dit element kliks blokkeert */
    background: linear-gradient(180deg,
        transparent 0%,
        var(--gold-muted) 20%,
        var(--gold) 50%,
        var(--gold-muted) 80%,
        transparent 100%
    );
    opacity: 0.5;
}

/* Scrollbar styling voor sidebar */
.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--gold-muted);
    border-radius: 3px;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: var(--space-2xl) var(--space-3xl);
    min-height: 100vh;
    position: relative;
}

/* ============================================
   Logo
   ============================================ */
.logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--cream) !important;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-2xl);
    text-decoration: none;
    position: relative;
    padding-bottom: var(--space-lg);
}

.logo::before {
    content: '📚';
    font-size: 1.5rem;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, var(--gold), transparent);
    opacity: 0.4;
}

.logo:hover {
    color: var(--gold-light) !important;
}

/* ============================================
   Navigation Menu
   ============================================ */
.nav-menu {
    list-style: none;
    flex: 1;
}

.nav-menu li {
    margin-bottom: var(--space-xs);
}

.nav-menu a {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    color: rgba(250, 247, 242, 0.8);
    font-size: 0.95rem;
    font-weight: 400;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gold);
    transform: scaleY(0);
    transition: transform var(--transition-normal);
    border-radius: 0 2px 2px 0;
}

.nav-menu a:hover {
    color: var(--cream);
    background: rgba(255, 255, 255, 0.08);
    text-decoration: none;
}

.nav-menu a:hover::before {
    transform: scaleY(0.6);
}

.nav-menu a.active {
    color: var(--gold-light);
    background: rgba(201, 162, 39, 0.15);
    font-weight: 500;
}

.nav-menu a.active::before {
    transform: scaleY(1);
}

.nav-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold-muted), transparent);
    margin: var(--space-lg) 0;
    opacity: 0.3;
}

/* ============================================
   User Info Panel
   ============================================ */
.user-info {
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-top: auto;
    border: 1px solid rgba(201, 162, 39, 0.2);
}

.user-info .username {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--cream);
    display: block;
    margin-bottom: var(--space-xs);
}

.user-info .role {
    font-size: 0.8rem;
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
}

/* ============================================
   Mobile Menu Toggle
   ============================================ */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: var(--space-md);
    left: var(--space-md);
    z-index: 1000;
    background: var(--mahogany);
    color: var(--cream);
    border: none;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover {
    background: var(--mahogany-light);
    transform: translateY(-2px);
}

/* ============================================
   Page Header
   ============================================ */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid rgba(74, 44, 42, 0.1);
}

.page-header h1 {
    font-size: 2.25rem;
    font-weight: 600;
    color: var(--mahogany);
    position: relative;
}

.page-header h1::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--gold), transparent);
    border-radius: 2px;
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
}

.section-header h2 {
    font-size: 1.5rem;
    color: var(--mahogany);
    position: relative;
    padding-left: var(--space-lg);
}

.section-header h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 70%;
    background: var(--gold);
    border-radius: 2px;
}

.section-header a {
    font-size: 0.9rem;
    color: var(--mahogany);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.section-header a::after {
    content: '→';
    transition: transform var(--transition-fast);
}

.section-header a:hover {
    background: rgba(74, 44, 42, 0.05);
    color: var(--gold);
}

.section-header a:hover::after {
    transform: translateX(4px);
}

/* ============================================
   Login Page
   ============================================ */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: var(--space-xl);
    background:
        linear-gradient(135deg, rgba(74, 44, 42, 0.03) 0%, transparent 50%),
        linear-gradient(225deg, rgba(201, 162, 39, 0.05) 0%, transparent 50%),
        var(--cream);
    position: relative;
}

/* Decoratief patroon */
.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 80%, rgba(201, 162, 39, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(74, 44, 42, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.login-box {
    background: var(--parchment);
    padding: var(--space-3xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-strong);
    width: 100%;
    max-width: 420px;
    position: relative;
    border: 1px solid rgba(201, 162, 39, 0.2);
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Decoratieve hoeken */
.login-box::before,
.login-box::after {
    content: '';
    position: absolute;
    width: 40px;
    height: 40px;
    border: 2px solid var(--gold);
    opacity: 0.4;
}

.login-box::before {
    top: -1px;
    left: -1px;
    border-right: none;
    border-bottom: none;
    border-radius: var(--radius-xl) 0 0 0;
}

.login-box::after {
    bottom: -1px;
    right: -1px;
    border-left: none;
    border-top: none;
    border-radius: 0 0 var(--radius-xl) 0;
}

.login-box h1 {
    font-family: var(--font-display);
    text-align: center;
    margin-bottom: var(--space-2xl);
    color: var(--mahogany);
    font-size: 2rem;
    font-weight: 700;
    position: relative;
}

.login-box h1::before {
    content: '📚';
    display: block;
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.login-box h1::after {
    content: '';
    display: block;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    margin: var(--space-md) auto 0;
}

/* ============================================
   Forms
   ============================================ */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: 500;
    color: var(--ink-soft);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    border: 2px solid rgba(74, 44, 42, 0.15);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-body);
    background: var(--cream);
    color: var(--ink);
    transition: all var(--transition-normal);
}

.form-control:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.15);
    background: white;
}

.form-control::placeholder {
    color: var(--ink-muted);
}

textarea.form-control {
    min-height: 140px;
    resize: vertical;
    line-height: 1.6;
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%234a2c2a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 18px;
    padding-right: 45px;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 500;
    font-family: var(--font-body);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn:active {
    transform: scale(0.98);
}

.btn:hover {
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--mahogany) 0%, var(--mahogany-dark) 100%);
    color: var(--cream);
    box-shadow: 0 4px 15px rgba(74, 44, 42, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--mahogany-light) 0%, var(--mahogany) 100%);
    box-shadow: 0 6px 20px rgba(74, 44, 42, 0.4);
    transform: translateY(-2px);
    color: var(--cream);
}

.btn-secondary {
    background: var(--cream-dark);
    color: var(--mahogany);
    border: 2px solid rgba(74, 44, 42, 0.2);
}

.btn-secondary:hover {
    background: var(--cream);
    border-color: var(--gold);
    color: var(--mahogany);
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #2d5440 100%);
    color: white;
}

.btn-success:hover {
    background: linear-gradient(135deg, #4a7d5f 0%, var(--success) 100%);
    transform: translateY(-2px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #6d2d2d 100%);
    color: white;
}

.btn-danger:hover {
    background: linear-gradient(135deg, #a04545 0%, var(--danger) 100%);
    transform: translateY(-2px);
}

.btn-sm {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.85rem;
}

.btn-lg {
    padding: var(--space-lg) var(--space-2xl);
    font-size: 1.1rem;
    font-weight: 600;
}

.btn-block {
    width: 100%;
}

/* ============================================
   Alerts
   ============================================ */
.alert {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    animation: slideIn 0.3s ease-out;
    border-left: 4px solid;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.alert::before {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.alert-success {
    background: var(--success-bg);
    color: var(--success);
    border-color: var(--success);
}

.alert-success::before {
    content: '✓';
}

.alert-error,
.alert-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border-color: var(--danger);
}

.alert-error::before,
.alert-danger::before {
    content: '!';
    font-weight: bold;
}

.alert-warning {
    background: var(--warning-bg);
    color: var(--warning);
    border-color: var(--warning);
}

.alert-warning::before {
    content: '⚠';
}

.alert-info {
    background: var(--info-bg);
    color: var(--info);
    border-color: var(--info);
}

.alert-info::before {
    content: 'i';
    font-weight: bold;
}

/* ============================================
   Cards
   ============================================ */
.card {
    background: var(--parchment);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
    border: 1px solid rgba(74, 44, 42, 0.08);
    transition: all var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-medium);
}

.card-header {
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid rgba(74, 44, 42, 0.1);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--mahogany);
    background: linear-gradient(180deg, rgba(201, 162, 39, 0.05) 0%, transparent 100%);
}

.card-body {
    padding: var(--space-xl);
}

.card-footer {
    padding: var(--space-md) var(--space-xl);
    border-top: 1px solid rgba(74, 44, 42, 0.1);
    background: rgba(74, 44, 42, 0.02);
}

/* ============================================
   Book Grid
   ============================================ */
.book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-xl);
}

.book-card {
    background: var(--parchment);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    position: relative;
    border: 1px solid rgba(74, 44, 42, 0.08);
}

.book-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(201, 162, 39, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
    z-index: 1;
}

.book-card:hover {
    transform: translateY(-8px) rotate(-1deg);
    box-shadow: var(--shadow-book);
}

.book-card:hover::before {
    opacity: 1;
}

.book-card-cover {
    aspect-ratio: 2/3;
    background: linear-gradient(180deg, var(--cream-dark) 0%, var(--cream) 100%);
    overflow: hidden;
    position: relative;
}

.book-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.book-card:hover .book-card-cover img {
    transform: scale(1.05);
}

.book-card-cover .no-cover {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--ink-muted);
    background: linear-gradient(135deg, var(--cream-dark) 0%, var(--cream) 100%);
    opacity: 0.5;
}

.book-card-body {
    padding: var(--space-md);
    position: relative;
    z-index: 2;
}

.book-card-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: var(--space-xs);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.book-card-title a {
    color: var(--ink);
    transition: color var(--transition-fast);
}

.book-card-title a:hover {
    color: var(--mahogany);
}

.book-card-author {
    font-size: 0.85rem;
    color: var(--ink-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-style: italic;
}

/* ============================================
   Book Detail Page
   ============================================ */
.book-detail {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.book-cover-large {
    background: var(--parchment);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-book);
    position: sticky;
    top: var(--space-xl);
    border: 1px solid rgba(74, 44, 42, 0.1);
}

.book-cover-large img {
    width: 100%;
    display: block;
}

.book-cover-large .no-cover {
    aspect-ratio: 2/3;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--cream-dark) 0%, var(--cream) 100%);
    color: var(--ink-muted);
    font-size: 6rem;
    opacity: 0.5;
}

.book-info h1 {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
    color: var(--mahogany);
    line-height: 1.2;
}

.book-info .author {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--ink-muted);
    margin-bottom: var(--space-xl);
    font-style: italic;
}

.book-info .description {
    line-height: 1.8;
    margin-bottom: var(--space-xl);
    color: var(--ink-soft);
}

.book-info .description h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-md);
    color: var(--mahogany);
}

.book-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xl);
    margin-bottom: var(--space-lg);
    color: var(--ink-muted);
    font-size: 0.9rem;
}

.book-meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background: rgba(74, 44, 42, 0.05);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
}

/* ============================================
   Statistics Grid
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.stat-card {
    background: var(--parchment);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(74, 44, 42, 0.08);
    transition: all var(--transition-normal);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(201, 162, 39, 0.1) 0%, transparent 70%);
    transform: translate(30%, -30%);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.stat-card .stat-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--mahogany);
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.stat-card .stat-label {
    color: var(--ink-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

/* ============================================
   Tables
   ============================================ */
.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius-lg);
}

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

.table th,
.table td {
    padding: var(--space-md) var(--space-lg);
    text-align: left;
    border-bottom: 1px solid rgba(74, 44, 42, 0.1);
}

.table th {
    background: linear-gradient(180deg, rgba(201, 162, 39, 0.08) 0%, rgba(201, 162, 39, 0.03) 100%);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--mahogany);
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.table tbody tr {
    transition: background var(--transition-fast);
}

.table tbody tr:hover {
    background: rgba(201, 162, 39, 0.05);
}

.table .actions {
    white-space: nowrap;
}

.table .actions a,
.table .actions button {
    margin-right: var(--space-sm);
}

/* ============================================
   Search Form
   ============================================ */
.search-form {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.search-form .form-control {
    flex: 1;
    min-width: 200px;
}

/* ============================================
   Pagination
   ============================================ */
.pagination {
    margin-top: var(--space-2xl);
}

.pagination ul {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    list-style: none;
}

.pagination li a,
.pagination li span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 var(--space-md);
    border-radius: var(--radius-md);
    border: 2px solid rgba(74, 44, 42, 0.15);
    color: var(--mahogany);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.pagination li a:hover {
    background: var(--mahogany);
    color: var(--cream);
    border-color: var(--mahogany);
    text-decoration: none;
}

.pagination li.active span {
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-muted) 100%);
    color: var(--ink);
    border-color: var(--gold);
    font-weight: 600;
}

.pagination li.disabled span {
    color: var(--ink-muted);
    cursor: not-allowed;
    opacity: 0.5;
}

.pagination li.ellipsis span {
    border: none;
    background: none;
}

/* ============================================
   View Toggle
   ============================================ */
.view-toggle {
    display: flex;
    gap: var(--space-xs);
    background: var(--cream-dark);
    padding: var(--space-xs);
    border-radius: var(--radius-md);
}

.view-toggle button {
    padding: var(--space-sm) var(--space-md);
    border: none;
    background: transparent;
    color: var(--ink-muted);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.view-toggle button:hover {
    color: var(--mahogany);
}

.view-toggle button.active {
    background: var(--parchment);
    color: var(--mahogany);
    box-shadow: var(--shadow-soft);
}

/* ============================================
   Book List View - Compact en overzichtelijk
   ============================================ */
.book-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.book-list .book-card {
    display: flex;
    flex-direction: row;
    gap: var(--space-md);
    padding: var(--space-md);
    align-items: center;
}

.book-list .book-card:hover {
    transform: translateX(4px);
}

.book-list .book-card-cover {
    width: 50px;
    height: 75px;
    aspect-ratio: auto;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
}

.book-list .book-card-cover img {
    border-radius: var(--radius-sm);
}

.book-list .book-card-cover .no-cover {
    font-size: 1.5rem;
}

.book-list .book-card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0;
}

.book-list .book-card-title {
    font-size: 0.95rem;
    white-space: normal;
    line-height: 1.3;
}

.book-list .book-card-author {
    font-size: 0.8rem;
}

.book-list .book-card-meta {
    display: flex;
    gap: var(--space-md);
    font-size: 0.75rem;
    color: var(--ink-muted);
    margin-top: var(--space-xs);
}

/* Legacy book-list-item support */
.book-list-item {
    display: flex;
    gap: var(--space-md);
    background: var(--parchment);
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(74, 44, 42, 0.08);
    transition: all var(--transition-normal);
    align-items: center;
}

.book-list-item:hover {
    box-shadow: var(--shadow-medium);
    transform: translateX(4px);
}

.book-list-item .cover {
    width: 50px;
    flex-shrink: 0;
}

.book-list-item .cover img {
    width: 100%;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-soft);
}

.book-list-item .info {
    flex: 1;
}

.book-list-item .title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: var(--space-xs);
    color: var(--ink);
}

.book-list-item .author {
    color: var(--ink-muted);
    font-size: 0.8rem;
    font-style: italic;
}

/* ============================================
   Star Rating System
   ============================================ */
.star-rating {
    display: inline-flex;
    gap: 2px;
    font-size: 1.2rem;
    line-height: 1;
}

.star-rating .star {
    color: var(--cream-dark);
    cursor: default;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.star-rating .star.filled {
    color: var(--gold);
}

.star-rating .star.half {
    background: linear-gradient(90deg, var(--gold) 50%, var(--cream-dark) 50%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.star-rating.interactive .star {
    cursor: pointer;
}

.star-rating.interactive .star:hover {
    transform: scale(1.2);
}

.star-rating.interactive:hover .star {
    color: var(--cream-dark);
}

.star-rating.interactive .star:hover,
.star-rating.interactive .star:hover ~ .star {
    color: var(--cream-dark);
}

.star-rating.interactive .star:hover ~ .star {
    color: var(--cream-dark);
}

.star-rating.interactive:hover .star:hover,
.star-rating.interactive:hover .star:has(~ .star:hover) {
    color: var(--gold);
}

/* Fallback for browsers without :has() */
.star-rating.interactive .star:hover {
    color: var(--gold);
}

.star-rating-large {
    font-size: 1.8rem;
    gap: 4px;
}

.star-rating-small {
    font-size: 0.9rem;
}

.rating-info {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.rating-info .rating-count {
    font-size: 0.85rem;
    color: var(--ink-muted);
}

.rating-info .rating-avg {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--mahogany);
}

/* ============================================
   Favorite Button
   ============================================ */
.btn-favorite {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--cream-dark);
    border: 2px solid rgba(74, 44, 42, 0.15);
    border-radius: var(--radius-md);
    color: var(--ink-muted);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-favorite:hover {
    border-color: var(--danger);
    color: var(--danger);
    background: var(--danger-bg);
}

.btn-favorite.is-favorite {
    background: var(--danger-bg);
    border-color: var(--danger);
    color: var(--danger);
}

.btn-favorite .heart {
    font-size: 1.1rem;
    transition: transform var(--transition-fast);
}

.btn-favorite:hover .heart {
    transform: scale(1.2);
}

.btn-favorite.is-favorite .heart {
    animation: heartbeat 0.6s ease;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    25% { transform: scale(1.3); }
    50% { transform: scale(1); }
    75% { transform: scale(1.2); }
}

/* ============================================
   Genre Badge
   ============================================ */
.badge-genre {
    background: linear-gradient(135deg, rgba(201, 162, 39, 0.15) 0%, rgba(201, 162, 39, 0.08) 100%);
    color: var(--oak);
    border: 1px solid rgba(201, 162, 39, 0.3);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
}

/* ============================================
   User Profile Page
   ============================================ */
.profile-header {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
    padding: var(--space-xl);
    background: var(--parchment);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(74, 44, 42, 0.08);
}

.profile-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--mahogany) 0%, var(--mahogany-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--cream);
    flex-shrink: 0;
}

.profile-info h2 {
    margin-bottom: var(--space-xs);
    color: var(--mahogany);
}

.profile-info .email {
    color: var(--ink-muted);
    font-size: 0.9rem;
}

.profile-info .member-since {
    font-size: 0.85rem;
    color: var(--ink-muted);
    margin-top: var(--space-sm);
}

.profile-tabs {
    display: flex;
    gap: var(--space-sm);
    border-bottom: 2px solid rgba(74, 44, 42, 0.1);
    margin-bottom: var(--space-xl);
}

.profile-tab {
    padding: var(--space-md) var(--space-xl);
    background: none;
    border: none;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--ink-muted);
    cursor: pointer;
    position: relative;
    transition: color var(--transition-fast);
}

.profile-tab::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gold);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

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

.profile-tab.active {
    color: var(--mahogany);
}

.profile-tab.active::after {
    transform: scaleX(1);
}

/* ============================================
   File Upload
   ============================================ */
.file-upload {
    border: 2px dashed rgba(74, 44, 42, 0.3);
    padding: var(--space-3xl);
    text-align: center;
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all var(--transition-normal);
    background: linear-gradient(180deg, rgba(201, 162, 39, 0.02) 0%, transparent 100%);
    position: relative;
}

.file-upload:hover,
.file-upload.dragover {
    border-color: var(--gold);
    background: linear-gradient(180deg, rgba(201, 162, 39, 0.08) 0%, rgba(201, 162, 39, 0.02) 100%);
    box-shadow: var(--shadow-gold);
}

.file-upload input[type="file"] {
    display: none;
}

.file-upload .upload-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    display: block;
}

.file-upload p {
    color: var(--ink-muted);
    font-size: 1rem;
}

.file-upload p strong {
    color: var(--mahogany);
}

/* ============================================
   Badges
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs) var(--space-md);
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-admin {
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-muted) 100%);
    color: var(--ink);
}

.badge-user {
    background: var(--cream-dark);
    color: var(--ink-muted);
    border: 1px solid rgba(74, 44, 42, 0.15);
}

/* ============================================
   Section Margins
   ============================================ */
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-xl); }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-xl); }

/* ============================================
   Text Utilities
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--ink-muted); }

/* ============================================
   Container
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ============================================
   Loading Animation
   ============================================ */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.loading {
    background: linear-gradient(90deg,
        var(--cream-dark) 0%,
        var(--cream) 50%,
        var(--cream-dark) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

/* ============================================
   Hover Effects
   ============================================ */
.hover-lift {
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1200px) {
    :root {
        --sidebar-width: 260px;
    }

    .main-content {
        padding: var(--space-xl) var(--space-2xl);
    }
}

@media (max-width: 1024px) {
    .book-detail {
        grid-template-columns: 250px 1fr;
        gap: var(--space-2xl);
    }

    .book-info h1 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    :root {
        --sidebar-width: 280px;
    }

    /* Verwijder texture overlay op mobile - kan touch blokkeren */
    body::before {
        display: none !important;
    }

    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        gap: var(--space-sm);
    }

    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        z-index: 1001;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    /* Sidebar overlay - alleen NAAST de sidebar, niet eroverheen */
    .sidebar-overlay {
        position: fixed;
        top: 0;
        left: 280px; /* Start NA de sidebar */
        width: calc(100% - 280px);
        height: 100%;
        background: rgba(26, 22, 20, 0.5);
        z-index: 1000;
        display: none;
    }

    .sidebar-overlay.visible {
        display: block;
    }

    .sidebar.open {
        z-index: 1001;
    }

    /* BELANGRIJK: Zorg dat .logo niet de hele sidebar bedekt */
    .sidebar .logo {
        position: relative;
        display: block;
        flex-shrink: 0;
        height: auto;
        max-height: 80px;
        overflow: visible;
        z-index: 1;
    }

    /* nav-menu moet BOVEN de logo staan qua stacking */
    .sidebar .nav-menu {
        position: relative;
        z-index: 10;
    }

    /* Simpele menu styling voor mobile */
    .sidebar .nav-menu a {
        display: block;
        min-height: 48px;
        line-height: 48px;
        padding: 0 var(--space-lg);
        position: relative;
        z-index: 11;
    }

    /* Verwijder ::before en ::after op mobile */
    .sidebar .nav-menu a::before,
    .sidebar .logo::after {
        display: none;
    }

    .sidebar .nav-menu a:active {
        background: rgba(201, 162, 39, 0.4);
    }

    /* Voorkom scroll wanneer menu open is */
    body.menu-open {
        overflow: hidden;
    }

    .main-content {
        margin-left: 0;
        padding: var(--space-xl) var(--space-lg);
        padding-top: calc(var(--space-3xl) + var(--space-xl));
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-md);
    }

    .page-header h1 {
        font-size: 1.75rem;
    }

    .book-detail {
        grid-template-columns: 1fr;
    }

    .book-cover-large {
        max-width: 280px;
        margin: 0 auto;
        position: static;
    }

    .search-form {
        flex-direction: column;
    }

    .search-form .form-control {
        width: 100%;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .stat-card .stat-value {
        font-size: 2rem;
    }

    /* Admin dashboard grid */
    [style*="grid-template-columns: 1fr 1fr"] {
        display: flex !important;
        flex-direction: column;
        gap: var(--space-xl);
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .main-content {
        padding: var(--space-lg);
        padding-top: calc(var(--space-3xl) + var(--space-md));
    }

    .book-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .book-card-body {
        padding: var(--space-sm);
    }

    .book-card-title {
        font-size: 0.9rem;
    }

    .book-card-author {
        font-size: 0.75rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .login-box {
        padding: var(--space-2xl);
    }

    .login-box h1 {
        font-size: 1.5rem;
    }

    .pagination ul {
        flex-wrap: wrap;
    }

    .pagination li a,
    .pagination li span {
        min-width: 38px;
        height: 38px;
        font-size: 0.85rem;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .sidebar,
    .mobile-menu-toggle,
    .view-toggle,
    .search-form,
    .pagination,
    .btn {
        display: none !important;
    }

    .main-content {
        margin-left: 0;
        padding: 0;
    }

    .book-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }

    body {
        background: white;
        color: black;
    }
}

/* ============================================
   Accessibility
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
*:focus-visible {
    outline: 3px solid var(--gold);
    outline-offset: 2px;
}

.btn:focus-visible,
.form-control:focus-visible {
    outline: 3px solid var(--gold);
    outline-offset: 2px;
}

/* Skip link for screen readers */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--mahogany);
    color: var(--cream);
    padding: var(--space-sm) var(--space-md);
    z-index: 10000;
}

.skip-link:focus {
    top: 0;
}

/* ============================================
   Dark Mode (Optional - can be enabled)
   ============================================ */
@media (prefers-color-scheme: dark) {
    /* Uncomment below for automatic dark mode */
    /*
    :root {
        --cream: #1a1614;
        --cream-dark: #2d2926;
        --parchment: #252220;
        --ink: #faf7f2;
        --ink-soft: #e8e4df;
        --ink-muted: #a8a4a0;
        --mahogany: #c9a227;
        --mahogany-light: #d4af37;
        --mahogany-dark: #b8860b;
    }
    */
}