/* ========================================
   UITGEVERIJ JML - SOPHISTICATED EDITION
   Editorial e-commerce design
   ======================================== */

/* CSS Variables - Sophisticated Color Palette */
:root {
    /* Warm, Editorial Colors */
    --primary: 18 65% 55%;          /* Terracotta/burnt orange */
    --secondary: 145 25% 45%;       /* Sage green */
    --accent: 38 60% 70%;           /* Soft gold */
    --warm-white: 30 25% 97%;       /* Cream, not pure white */
    --warm-black: 30 10% 15%;       /* Warm black */
    --neutral-50: 30 15% 96%;
    --neutral-100: 30 12% 92%;
    --neutral-200: 30 10% 85%;
    --neutral-400: 30 8% 60%;
    --neutral-500: 30 6% 45%;
    --neutral-700: 30 8% 25%;
    --neutral-900: var(--warm-black);
    
    /* Editorial Spacing (Generous!) */
    --space-xs: 0.5rem;      /* 8px */
    --space-sm: 1rem;        /* 16px */
    --space-md: 2rem;        /* 32px */
    --space-lg: 4rem;        /* 64px */
    --space-xl: 6rem;        /* 96px */
    --space-2xl: 8rem;       /* 128px */
    
    /* Sophisticated Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Typography */
    --font-display: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
    --font-heading: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Inter', -apple-system, sans-serif;
    
    /* Smooth Easing */
    --ease-smooth: cubic-bezier(0.4, 0.0, 0.2, 1);
    --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --ease-in-out: cubic-bezier(0.645, 0.045, 0.355, 1);
}

/* ========================================
   BASE & RESET
   ======================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background: hsl(var(--warm-white));
    color: hsl(var(--warm-black));
    overflow-x: hidden;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s var(--ease-smooth);
}

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

::selection {
    background: hsl(var(--primary) / 0.2);
    color: hsl(var(--warm-black));
}

/* ========================================
   NAVIGATION - Minimalist & Elegant
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: hsla(var(--warm-white) / 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid hsl(var(--neutral-200) / 0.5);
    transition: all 0.4s var(--ease-smooth);
}

.navbar.scrolled {
    background: hsla(var(--warm-white) / 0.95);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-image {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: hsl(var(--warm-black));
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.nav-link {
    position: relative;
    font-size: 0.9375rem;
    letter-spacing: 0.02em;
    color: hsl(var(--neutral-700));
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: hsl(var(--primary));
    transition: width 0.3s var(--ease-out);
}

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

.nav-link:hover::after {
    width: 100%;
}

.lang-switcher {
    display: flex;
    gap: 0.5rem;
    margin-left: var(--space-sm);
}

.lang-btn {
    padding: 0.25rem 0.75rem;
    border: 1px solid hsl(var(--neutral-200));
    border-radius: var(--radius-sm);
    background: transparent;
    color: hsl(var(--neutral-500));
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all 0.2s var(--ease-smooth);
}

.lang-btn.active {
    background: hsl(var(--primary));
    color: white;
    border-color: hsl(var(--primary));
}

.lang-btn:hover:not(.active) {
    border-color: hsl(var(--primary) / 0.5);
    color: hsl(var(--primary));
}

.cart-button {
    position: relative;
    padding: 0.5rem;
    color: hsl(var(--neutral-700));
    transition: color 0.3s var(--ease-smooth);
}

.cart-button:hover {
    color: hsl(var(--primary));
}

.cart-badge {
    position: absolute;
    top: 0;
    right: 0;
    width: 18px;
    height: 18px;
    background: hsl(var(--accent));
    color: hsl(var(--warm-black));
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
}

/* ========================================
   HERO - Editorial & Dramatic
   ======================================== */

.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding: var(--space-xl) 0 var(--space-lg);
    margin-top: 80px;
    overflow: hidden;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-xl);
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-eyebrow {
    font-family: var(--font-body);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: hsl(var(--secondary));
    margin-bottom: var(--space-sm);
    font-weight: 500;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: var(--space-md);
    color: hsl(var(--warm-black));
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.8;
    color: hsl(var(--neutral-500));
    margin-bottom: var(--space-lg);
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-image-container {
    position: relative;
    height: 70vh;
    max-height: 800px;
}

.hero-image-main {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 85%;
    height: 90%;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 
        0 20px 60px -10px rgba(0, 0, 0, 0.15),
        0 10px 30px -5px rgba(0, 0, 0, 0.1);
}

.hero-image-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1s var(--ease-smooth);
}

.hero-image-main:hover img {
    transform: scale(1.05);
}

.hero-image-accent {
    position: absolute;
    left: 0;
    bottom: 10%;
    width: 40%;
    height: 50%;
    background: linear-gradient(135deg, hsl(var(--secondary) / 0.15) 0%, hsl(var(--primary) / 0.15) 100%);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(40px);
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.1);
}

/* ========================================
   BUTTONS - Sophisticated & Clear
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    cursor: pointer;
    border: none;
    transition: all 0.3s var(--ease-smooth);
}

.btn-primary {
    background: hsl(var(--primary));
    color: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-primary:hover {
    background: hsl(var(--primary) / 0.9);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: hsl(var(--warm-black));
    border: 1.5px solid hsl(var(--neutral-300));
}

.btn-secondary:hover {
    border-color: hsl(var(--primary));
    color: hsl(var(--primary));
    transform: translateY(-2px);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ========================================
   SECTIONS - Editorial Layouts
   ======================================== */

.section {
    padding: var(--space-xl) 0;
}

.section-large {
    padding: var(--space-2xl) 0;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.section-header {
    max-width: 700px;
    margin-bottom: var(--space-xl);
}

.section-eyebrow {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: hsl(var(--secondary));
    margin-bottom: var(--space-sm);
    font-weight: 500;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    color: hsl(var(--warm-black));
}

.section-subtitle {
    font-size: 1.125rem;
    line-height: 1.8;
    color: hsl(var(--neutral-500));
}

/* ========================================
   BOOK GRID - Asymmetric & Beautiful
   ======================================== */

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.book-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.4s var(--ease-smooth);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.book-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.book-image-wrapper {
    position: relative;
    width: 100%;
    padding-top: 140%; /* 7:10 aspect ratio for book covers */
    background: linear-gradient(135deg, hsl(var(--neutral-100)) 0%, hsl(var(--neutral-50)) 100%);
    overflow: hidden;
}

.book-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-smooth);
}

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

.book-badge {
    position: absolute;
    top: var(--space-sm);
    left: var(--space-sm);
    padding: 0.375rem 0.875rem;
    background: hsl(var(--accent));
    color: hsl(var(--warm-black));
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-radius: var(--radius-sm);
}

.book-content {
    padding: var(--space-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.book-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 500;
    line-height: 1.3;
    margin-bottom: var(--space-xs);
    color: hsl(var(--warm-black));
}

.book-format {
    font-size: 0.875rem;
    color: hsl(var(--neutral-500));
    margin-bottom: var(--space-md);
}

.book-price {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 500;
    color: hsl(var(--primary));
    margin-top: auto;
    margin-bottom: var(--space-md);
}

.book-actions {
    display: flex;
    gap: var(--space-sm);
}

.book-actions .btn {
    flex: 1;
    justify-content: center;
    padding: 0.875rem 1.5rem;
    font-size: 0.875rem;
}

/* ========================================
   FORMS - Clean & Accessible
   ======================================== */

.form-section {
    background: white;
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    margin-bottom: var(--space-md);
}

.form-section-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 500;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid hsl(var(--neutral-200));
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-label {
    display: block;
    font-size: 0.9375rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
    color: hsl(var(--neutral-700));
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1.5px solid hsl(var(--neutral-200));
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
    background: white;
    color: hsl(var(--warm-black));
    transition: all 0.3s var(--ease-smooth);
}

.form-input:focus {
    outline: none;
    border-color: hsl(var(--primary));
    box-shadow: 0 0 0 3px hsl(var(--primary) / 0.1);
}

.form-input::placeholder {
    color: hsl(var(--neutral-400));
}

textarea.form-input {
    min-height: 150px;
    resize: vertical;
}

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

/* ========================================
   FOOTER - Minimal & Elegant
   ======================================== */

.footer {
    background: hsl(var(--neutral-900));
    color: hsl(var(--neutral-50));
    padding: var(--space-xl) 0 var(--space-md);
    margin-top: var(--space-2xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.footer-section h3 {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: var(--space-md);
}

.footer-section p,
.footer-section a {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: hsl(var(--neutral-50) / 0.7);
    transition: color 0.3s var(--ease-smooth);
}

.footer-section a:hover {
    color: hsl(var(--neutral-50));
}

.social-links {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: hsl(var(--neutral-50) / 0.1);
    transition: all 0.3s var(--ease-smooth);
}

.social-link:hover {
    background: hsl(var(--primary));
    transform: translateY(-3px);
}

.footer-bottom {
    padding-top: var(--space-md);
    border-top: 1px solid hsl(var(--neutral-50) / 0.1);
    text-align: center;
    font-size: 0.875rem;
    color: hsl(var(--neutral-50) / 0.5);
}

/* ========================================
   UTILITIES
   ======================================== */

.animate-fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeIn 0.6s var(--ease-smooth) forwards;
}

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

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }

/* Loading spinner */
@keyframes spin {
    to { transform: rotate(360deg); }
}

.animate-spin {
    animation: spin 1s linear infinite;
}

/* Notification */
.notification {
    position: fixed;
    bottom: var(--space-md);
    right: var(--space-md);
    background: white;
    color: hsl(var(--warm-black));
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.4s var(--ease-smooth);
    z-index: 1000;
}

.notification.show {
    opacity: 1;
    transform: translateX(0);
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 1024px) {
    :root {
        --space-lg: 3rem;
        --space-xl: 4rem;
        --space-2xl: 5rem;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .hero-image-container {
        height: 60vh;
        order: -1;
    }

    .books-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--space-md);
    }
}

@media (max-width: 768px) {
    .nav-container {
        height: 70px;
    }

    .nav-links {
        gap: var(--space-sm);
    }

    .nav-link {
        font-size: 0.875rem;
    }

    .hero {
        margin-top: 70px;
        min-height: auto;
        padding: var(--space-lg) 0;
    }

    .section-title {
        font-size: clamp(2rem, 6vw, 2.5rem);
    }

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

    .book-actions {
        flex-direction: column;
    }
}