/* ========================================
   PORTFOLIO - Exploring Interactions
   Bold & experimental media art portfolio
   ======================================== */

/* ========================================
   ABC REPRO VARIABLE FONTS
   ======================================== */
@font-face {
    font-family: 'ABC Repro';
    src: url('../ABC Repro/ABC Repro Variable/ABCReproVariable-Trial.woff2') format('woff2'),
         url('../ABC Repro/ABC Repro Variable/ABCReproVariable-Trial.woff') format('woff');
    font-weight: 200 900;
    font-display: swap;
}

@font-face {
    font-family: 'ABC Repro Mono';
    src: url('../ABC Repro/ABC Repro Mono Variable/ABCReproMonoVariable-Trial.woff2') format('woff2'),
         url('../ABC Repro/ABC Repro Mono Variable/ABCReproMonoVariable-Trial.woff') format('woff');
    font-weight: 200 900;
    font-display: swap;
}

/* CSS Variables */
:root {
    /* Colors - Dark base with electric accent */
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-tertiary: #1a1a1a;
    --text-primary: #f5f5f5;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --accent: #5A4C9C;
    --accent-dim: #4a3e82;
    --border: #2a2a2a;

    /* Typography - ABC Repro Variable */
    --font-display: 'ABC Repro', sans-serif;
    --font-mono: 'ABC Repro Mono', monospace;

    /* Variable font weights */
    --weight-light: 300;
    --weight-regular: 400;
    --weight-medium: 500;
    --weight-bold: 700;
    --weight-black: 900;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-medium: 300ms ease;
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-display);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Selection */
::selection {
    background: var(--accent);
    color: var(--bg-primary);
}

/* Links */
a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* ========================================
   NAVIGATION
   ======================================== */
.nav {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md);
    display: flex;
    gap: var(--space-md);
    mix-blend-mode: difference;
}

.nav a {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-primary);
    font-weight: var(--weight-regular);
    transition: color var(--transition-fast), font-weight 0.15s ease;
}

.nav a:hover {
    color: var(--accent);
    font-weight: var(--weight-bold);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: var(--space-lg);
}

.hero-content {
    text-align: center;
    max-width: 900px;
}

.alias {
    font-size: clamp(3rem, 12vw, 10rem);
    font-weight: var(--weight-black);
    letter-spacing: -0.03em;
    line-height: 0.9;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
    /* Weight controlled smoothly by JS */
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.scroll-indicator span {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-muted);
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--text-muted), transparent);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ========================================
   PROJECTS SECTION
   ======================================== */
.projects {
    padding: var(--space-xl) var(--space-lg);
    min-height: 100vh;
}

.section-title {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-md);
    max-width: 1600px;
    margin: 0 auto;
}

/* Individual Project */
.project {
    position: relative;
}

.project-preview {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    cursor: pointer;
    background: var(--bg-secondary);
    border-radius: 4px;
}

.project-static,
.project-animated {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity var(--transition-medium);
}

.project-animated {
    opacity: 0;
}

/* Schlagende Komplimente - adjust image position */
[data-project="schlagende-komplimente"] .project-static {
    object-position: center calc(50% + 15px);
}

/* Desktop hover - show animated */
@media (hover: hover) {
    .project-preview:hover .project-static {
        opacity: 0;
    }

    .project-preview:hover .project-animated {
        opacity: 1;
    }
}

/* Project overlay */
.project-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-md);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, transparent 100%);
    transform: translateY(20px);
    opacity: 0;
    transition: all var(--transition-medium);
}

.project-preview:hover .project-overlay {
    transform: translateY(0);
    opacity: 1;
}

.project-title {
    font-size: 1.25rem;
    font-weight: var(--weight-medium);
    margin-bottom: var(--space-xs);
    transition: font-weight 0.2s ease;
}

.project-preview:hover .project-title {
    font-weight: var(--weight-bold);
}

.project-preview:active .project-title {
    font-weight: var(--weight-black);
}

.project-brief {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ========================================
   PROJECT EXPANDED VIEW
   ======================================== */
.project-expanded {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 200;
    background: var(--bg-primary);
    overflow-y: auto;
    padding: var(--space-lg);
    animation: fadeIn var(--transition-medium) ease-out;
}

.project-expanded.active {
    display: block;
}

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

/* ========================================
   PILL-STYLE BUTTONS
   ======================================== */
.btn-pill {
    display: inline-block;
    padding: 0.75em 1.5em;
    background: transparent;
    border: 1px solid var(--text-primary);
    border-radius: 100px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: var(--weight-regular);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease, font-weight 0.15s ease;
}

.btn-pill:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg-primary);
    font-weight: var(--weight-bold);
    font-style: italic;
}

.close-btn {
    position: fixed;
    top: var(--space-md);
    right: var(--space-md);
    width: 50px;
    height: 50px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 100px;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: var(--weight-regular);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast), font-weight 0.15s ease;
    z-index: 210;
}

.close-btn:hover {
    background: var(--accent);
    color: var(--bg-primary);
    border-color: var(--accent);
    font-weight: var(--weight-bold);
}

.project-content {
    max-width: 900px;
    margin: 0 auto;
    padding-top: var(--space-lg);
}

.project-header {
    margin-bottom: var(--space-lg);
}

.project-header h3 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.project-meta {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.project-media {
    margin-bottom: var(--space-lg);
}

.project-media figure {
    margin-bottom: var(--space-md);
}

.project-media img {
    width: 100%;
    height: auto;
    border-radius: 4px;
}

.video-embed {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    overflow: hidden;
    border-radius: 4px;
    margin-bottom: var(--space-md);
}

.video-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.project-essay {
    font-size: 1.1rem;
    line-height: 1.8;
}

.project-essay p {
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
}

.project-essay p:first-child {
    color: var(--text-primary);
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.about {
    padding: var(--space-xl) var(--space-lg);
    min-height: 60vh;
    display: flex;
    align-items: center;
    border-top: 1px solid var(--border);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text p {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.about-text p:first-child {
    color: var(--text-primary);
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact {
    padding: var(--space-xl) var(--space-lg);
    min-height: 40vh;
    display: flex;
    align-items: center;
    border-top: 1px solid var(--border);
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    align-items: center;
}

.contact-link {
    font-family: var(--font-mono);
    font-size: clamp(1rem, 3vw, 1.5rem);
    color: var(--text-primary);
    padding: 0.75em 1.5em;
    border: 2px solid var(--text-primary);
    border-radius: 100px;
    font-weight: var(--weight-regular);
    transition: all 0.2s ease, font-weight 0.15s ease;
}

.contact-link:hover {
    background: var(--text-primary);
    border-color: var(--text-primary);
    color: var(--bg-primary);
    font-weight: var(--weight-bold);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    padding: var(--space-lg);
    text-align: center;
    border-top: 1px solid var(--border);
}

.footer p {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ========================================
   MOBILE STYLES
   ======================================== */
@media (max-width: 768px) {
    .nav {
        padding: var(--space-sm);
        gap: var(--space-sm);
    }

    .hero {
        padding: var(--space-md);
    }

    .projects {
        padding: var(--space-lg) var(--space-sm);
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }

    /* On mobile, always show overlay */
    .project-overlay {
        transform: translateY(0);
        opacity: 1;
    }

    .project-expanded {
        padding: var(--space-sm);
    }

    .project-content {
        padding-top: var(--space-xl);
    }

    .about,
    .contact {
        padding: var(--space-lg) var(--space-sm);
    }
}

/* ========================================
   MOBILE AUTO-PLAY (visibility-based)
   ======================================== */
@media (hover: none) {
    .project.is-visible .project-static {
        opacity: 0;
    }

    .project.is-visible .project-animated {
        opacity: 1;
    }
}

/* ========================================
   PROJECT CREDITS
   ======================================== */
.project-credits {
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border);
}

.project-credits h4 {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.project-credits ul {
    list-style: none;
}

.project-credits li {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
}

/* Credits grid for multiple columns */
.project-credits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border);
}

.project-credits-grid .project-credits {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

/* Project note styling */
.project-note {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: var(--space-md) 0;
    padding: var(--space-md);
    background: var(--bg-secondary);
    border-radius: 4px;
    border-left: 3px solid var(--accent);
}

.project-note a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.project-note a:hover {
    color: var(--text-primary);
}

/* ========================================
   IMAGE PAIRS (for before/after comparisons)
   ======================================== */
.image-pair {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.image-pair figure {
    margin: 0;
}

.image-pair figcaption {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

@media (max-width: 600px) {
    .image-pair {
        grid-template-columns: 1fr;
    }
}

/* Centered caption for image pairs/grids */
.media-caption {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: calc(-1 * var(--space-sm));
    margin-bottom: var(--space-lg);
}

/* ========================================
   VIDEO STYLING
   ======================================== */
.project-video {
    width: 100%;
    border-radius: 4px;
    margin-bottom: var(--space-md);
}

.project-video-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ========================================
   ANIMATED PROJECT PREVIEW (GIF)
   ======================================== */
.project-preview img.project-animated {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

@media (hover: hover) {
    .project-preview:hover img.project-animated {
        opacity: 1;
    }
}

@media (hover: none) {
    .project.is-visible img.project-animated {
        opacity: 1;
    }
}

/* ========================================
   PROJECT DETAIL PAGES
   ======================================== */
.project-page {
    min-height: 100vh;
}

.project-nav {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    padding: var(--space-md);
}

.btn-back,
.btn-next {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.6em 1.2em;
    background: transparent;
    border: 2px solid var(--text-primary);
    border-radius: 100px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: var(--weight-regular);
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.2s ease, font-weight 0.15s ease;
}

.btn-back:hover,
.btn-next:hover {
    background: var(--text-primary);
    border-color: var(--text-primary);
    color: var(--bg-primary);
    font-weight: var(--weight-bold);
}

.project-nav-next {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md);
}

.back-arrow {
    font-size: 1.1em;
}

.project-detail {
    padding: calc(var(--space-xl) + var(--space-lg)) var(--space-lg) var(--space-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.project-detail .project-header {
    margin-bottom: var(--space-lg);
}

.project-detail .project-header h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: var(--weight-bold);
    margin-bottom: var(--space-md);
    transition: font-weight 0.3s ease;
}

.project-detail .project-header h1:hover {
    font-weight: var(--weight-black);
}

.project-detail .project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.meta-item {
    display: inline-block;
}

.meta-item strong {
    color: var(--text-muted);
    font-weight: var(--weight-regular);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Project Media */
.project-detail .project-media {
    margin-bottom: var(--space-lg);
}

.media-hero {
    margin-bottom: var(--space-md);
}

.media-hero img,
.media-hero-video {
    width: 100%;
    border-radius: 4px;
}

/* Photo credits */
.photo-credit {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
    text-align: right;
}

.media-sequence img {
    width: 100%;
    border-radius: 4px;
    margin-bottom: var(--space-md);
}

.media-gif img {
    width: 100%;
    border-radius: 4px;
    margin-bottom: var(--space-md);
}

.media-section-title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: var(--weight-regular);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    margin: var(--space-lg) 0 var(--space-md);
}

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

.media-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.media-grid figure {
    margin: 0;
}

.media-grid img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
    aspect-ratio: 4/3;
}

/* Project Essay on detail page */
.project-detail .project-essay {
    font-size: 1.15rem;
    line-height: 1.85;
    margin-bottom: var(--space-lg);
}

.project-detail .project-essay p {
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
}

.project-detail .project-essay p:first-child {
    color: var(--text-primary);
    font-size: 1.25rem;
}

/* Mobile adjustments for project pages */
@media (max-width: 768px) {
    .project-detail {
        padding: calc(var(--space-lg) + var(--space-xl)) var(--space-sm) var(--space-lg);
    }

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

    .media-grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .project-detail .project-meta {
        flex-direction: column;
        gap: var(--space-xs);
    }
}

@media (max-width: 480px) {
    .media-grid-3 {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   PROJECT LINK STYLING
   ======================================== */
.project-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.project-link:hover {
    color: inherit;
}