/* Fonts (self-hosted, DSGVO-konform) */
@font-face {
    font-family: 'Cormorant Garamond';
    font-style: normal;
    font-weight: 300;
    font-display: swap;
    src: url('../fonts/cormorant-garamond/cormorant-garamond-latin-300-normal.woff2') format('woff2');
}

@font-face {
    font-family: 'Cormorant Garamond';
    font-style: italic;
    font-weight: 300;
    font-display: swap;
    src: url('../fonts/cormorant-garamond/cormorant-garamond-latin-300-italic.woff2') format('woff2');
}

@font-face {
    font-family: 'Cormorant Garamond';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../fonts/cormorant-garamond/cormorant-garamond-latin-400-normal.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 300;
    font-display: swap;
    src: url('../fonts/inter/inter-latin-300-normal.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../fonts/inter/inter-latin-400-normal.woff2') format('woff2');
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: #fff;
    color: #0a0a0a;
    padding: 8px 16px;
    z-index: 300;
    font-size: 0.85rem;
    text-decoration: none;
}

.skip-link:focus {
    top: 10px;
}

/* Custom Properties */
:root {
    --color-bg: #0a0a0a;
    --color-bg-deep: #050505;
    --color-text: #e0e0e0;
    --color-text-muted: #888;
    --color-text-subtle: #666;
    --color-accent: #ccc;
    --color-border: rgba(255, 255, 255, 0.06);
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-snap-type: y proximity;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-weight: 300;
    line-height: 1.6;
}

/* Navigation */
nav[aria-label="Hauptnavigation"] {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
    padding: 18px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}

nav[aria-label="Hauptnavigation"].visible {
    transform: translateY(0);
}

nav[aria-label="Hauptnavigation"] .brand {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 400;
    letter-spacing: 1px;
}

nav[aria-label="Hauptnavigation"] .nav-links a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.8rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-left: 30px;
    transition: opacity 0.3s;
}

nav[aria-label="Hauptnavigation"] .nav-links a:hover {
    opacity: 0.5;
}

/* Header */
header {
    padding: 100px 20px 30px 20px;
    text-align: center;
}

header h1 {
    font-family: var(--font-serif);
    font-size: 3.5rem;
    font-weight: 300;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

header .divider {
    width: 60px;
    height: 1px;
    background: var(--color-text-subtle);
    margin: 30px auto;
}

header .subtitle {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 300;
    color: var(--color-text-subtle);
    font-style: italic;
    letter-spacing: 1px;
    text-transform: none;
}

/* Intro */
.intro {
    max-width: 720px;
    margin: 0 auto 160px auto;
    padding: 0 20px;
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.8;
}

.intro p {
    text-align: justify;
    hyphens: auto;
    margin-bottom: 1.2em;
}

.intro p.intro-closing {
    margin-top: 2.5em;
    text-align: left;
}

.intro p:last-child {
    margin-bottom: 0;
}

.intro a {
    color: var(--color-accent);
    text-decoration: none;
    border-bottom: 1px solid var(--color-text-subtle);
    transition: border-color 0.3s;
}

.intro a:hover {
    border-bottom-color: var(--color-accent);
}

/* Gallery Feed */
.gallery-feed {
    max-width: 860px;
    width: 100%;
    margin: 0 auto;
    padding: 10px 20px 80px 20px;
}

.art-piece {
    margin-bottom: 100px;
    text-align: center;
    scroll-snap-align: center;
    scroll-margin-block: 60px;
}

.art-piece img {
    max-width: min(500px, 100%);
    max-height: 500px;
    width: auto;
    height: auto;
    box-shadow: 0 8px 40px rgba(0,0,0,0.4);
    transition: box-shadow 0.4s ease, transform 0.3s ease;
    cursor: pointer;
}

.art-piece img:hover {
    box-shadow: 0 12px 50px rgba(0,0,0,0.6);
    transform: scale(1.01);
}

.art-info {
    margin-top: 20px;
}

.art-info .artist {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--color-accent);
    letter-spacing: 1px;
}

.art-info .title {
    font-size: 0.85rem;
    color: var(--color-text-subtle);
    font-style: italic;
    margin-top: 4px;
}

.art-info .details {
    font-size: 0.8rem;
    color: var(--color-text-subtle);
    margin-top: 6px;
    line-height: 1.5;
}

.art-info .details + .details {
    margin-top: 2px;
}

.art-button {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    display: block;
    margin: 0 auto;
}

.art-button:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 4px;
}

.btn-inquiry {
    display: inline-block;
    margin-top: 18px;
    padding: 10px 28px;
    background-color: transparent;
    color: #fff;
    border: 1px solid #fff;
    text-decoration: none;
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-family: var(--font-sans);
    transition: all 0.3s ease;
}

.btn-inquiry:hover {
    background-color: #fff;
    color: var(--color-bg);
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.92);
    z-index: 200;
    cursor: pointer;
    justify-content: center;
    align-items: center;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
    box-shadow: 0 0 60px rgba(0,0,0,0.5);
}

.lightbox-close {
    position: fixed;
    top: 30px;
    right: 35px;
    font-size: 2rem;
    color: #fff;
    cursor: pointer;
    z-index: 201;
    font-weight: 300;
    background: none;
    border: none;
    transition: opacity 0.3s;
}

.lightbox-close:hover {
    opacity: 0.6;
}

.lightbox-prev,
.lightbox-next {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    font-size: 3rem;
    color: #fff;
    cursor: pointer;
    z-index: 201;
    font-weight: 300;
    padding: 20px;
    background: none;
    border: none;
    transition: opacity 0.3s;
    user-select: none;
}

.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

.lightbox-prev:hover,
.lightbox-next:hover {
    opacity: 0.6;
}

.lightbox button:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 4px;
}

/* Footer / Contact */
footer {
    background: var(--color-bg-deep);
    border-top: 1px solid #1a1a1a;
    padding: 80px 20px;
    text-align: center;
}

footer h2 {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 300;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 25px;
}

.contact-details {
    font-style: normal;
}

.contact-details p {
    margin: 4px 0;
    font-size: 0.9rem;
    color: #888;
}

.contact-details a {
    color: #888;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s;
}

.contact-details a:hover {
    border-bottom-color: #888;
}

.social-links {
    margin-top: 25px;
}

.social-links a {
    color: #888;
    text-decoration: none;
    font-size: 0.85rem;
    letter-spacing: 1px;
    margin: 0 12px;
    transition: opacity 0.3s;
}

.social-links a:hover {
    opacity: 0.6;
}

/* Responsive */
@media (max-width: 600px) {
    header h1 {
        font-size: 2.2rem;
        letter-spacing: 4px;
    }

    header p {
        font-size: 0.85rem;
    }

    .art-piece {
        margin-bottom: 70px;
    }

    nav[aria-label="Hauptnavigation"] {
        padding: 12px 16px;
    }

    nav[aria-label="Hauptnavigation"] .brand {
        font-size: 0.85rem;
        letter-spacing: 2px;
    }

    nav[aria-label="Hauptnavigation"] .nav-links a {
        margin-left: 12px;
        font-size: 0.65rem;
    }

    footer {
        padding: 60px 20px;
    }
}