:root {
    --bg-color: #fcfcfc;
    --text-color: #1a1a1a;
    --accent-color: #000000;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-body);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header & Hero */
header {
    height: 100vh;
    display: flex;
    flex-direction: column;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 3rem 2rem;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 3rem;
    margin: 0;
    padding: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 4.5rem;
    font-weight: 400;
    max-width: 900px;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 4rem;
    letter-spacing: 1px;
}

.btn {
    display: inline-block;
    padding: 1rem 3rem;
    background-color: var(--accent-color);
    color: #fff;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-size: 0.9rem;
    transition: background-color 0.4s ease;
}

.btn:hover {
    background-color: #555;
}

/* Sections */
section {
    padding: 8rem 0;
}

section h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 400;
    text-align: center;
    margin-bottom: 4rem;
}

#manifeste {
    background-color: #fff;
}

#manifeste p {
    font-size: 1.8rem;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    line-height: 1.6;
    color: #333;
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 4rem;
}

.artwork-card {
    display: flex;
    flex-direction: column;
}

.artwork-card img {
    width: 100%;
    height: auto;
    aspect-ratio: 4/5;
    object-fit: cover;
    cursor: zoom-in;
    transition: opacity 0.4s ease;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.artwork-card img:hover {
    opacity: 0.85;
}

.artwork-info {
    margin-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.artwork-details h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin: 0 0 0.3rem 0;
}

.artwork-details p {
    margin: 0;
    color: #777;
    font-size: 0.9rem;
}

.price {
    font-weight: 500;
    font-size: 1.1rem;
}

.buy-btn {
    margin-top: 1.5rem;
    padding: 1rem 0;
    width: 100%;
    background-color: transparent;
    border: 1px solid #ccc;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.4s ease;
}

.buy-btn:hover {
    background-color: var(--accent-color);
    color: #fff;
    border-color: var(--accent-color);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1.5s cubic-bezier(0.16, 1, 0.3, 1), transform 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.98);
}

.lightbox-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 80vh;
    margin-top: 5vh;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

#caption {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 700px;
    text-align: center;
    color: #000;
    padding: 30px 0;
    height: 150px;
    font-family: var(--font-heading);
    font-size: 1.5rem;
}

.close {
    position: absolute;
    top: 30px;
    right: 50px;
    color: #000;
    font-size: 40px;
    font-weight: 300;
    transition: 0.3s;
    cursor: pointer;
}

.close:hover {
    color: #888;
}

footer {
    text-align: center;
    padding: 5rem 0;
    color: #aaa;
    font-size: 0.9rem;
}

footer a {
    color: #888;
    text-decoration: none;
    margin-top: 1rem;
    display: inline-block;
}