/* ===== CSS Variables ===== */
:root {
    --color-bg: #0a0a0a;
    --color-bg-alt: #111111;
    --color-surface: #161616;
    --color-surface-hover: #1e1e1e;
    --color-text: #e8e8e8;
    --color-text-muted: #888888;
    --color-text-dim: #555555;
    --color-accent: #e85d04;
    --color-accent-hover: #f48c06;
    --color-accent-secondary: #9d4edd;
    --color-border: #2a2a2a;
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --radius: 4px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
    --nav-height: 64px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

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

/* ===== Utilities ===== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--color-text);
}

.logo:hover {
    color: var(--color-accent);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-link {
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width 0.3s ease;
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
}

.lang-switch .nav-link {
    color: var(--color-accent);
    font-weight: 700;
    border: 1px solid var(--color-accent);
    padding: 6px 12px;
    border-radius: var(--radius);
}
.lang-switch .nav-link:hover {
    background: var(--color-accent);
    color: #fff;
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: var(--color-bg);
    background-image:
        linear-gradient(rgba(10, 10, 10, 0.45), rgba(10, 10, 10, 0.82)),
        url('../images/projects/hero.jpg');
    background-size: cover, cover;
    background-position: center center, center center;
    background-repeat: no-repeat, no-repeat;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(232, 93, 4, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(157, 78, 221, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 100%, rgba(232, 93, 4, 0.04) 0%, transparent 50%);
    animation: heroPulse 8s ease-in-out infinite alternate;
}

@keyframes heroPulse {
    0% { opacity: 0.6; }
    100% { opacity: 1; }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 24px;
    max-width: 900px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 10vw, 7rem);
    font-weight: 700;
    line-height: 0.95;
    letter-spacing: -2px;
    margin-bottom: 16px;
}

.hero-title .line {
    display: block;
}

.hero-title .line:last-child {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--color-text-muted);
    letter-spacing: 6px;
    text-transform: lowercase;
    margin-bottom: 24px;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
    border: 1.5px solid transparent;
}

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

.btn-primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(232, 93, 4, 0.25);
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator span {
    display: block;
    width: 20px;
    height: 30px;
    border: 2px solid var(--color-text-dim);
    border-radius: 12px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 2px;
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
    50% { transform: translateX(-50%) translateY(8px); opacity: 0.3; }
}

/* ===== Sections ===== */
.section {
    padding: 100px 0;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-secondary));
    border-radius: 2px;
}

.section-desc {
    color: var(--color-text-muted);
    font-size: 1.1rem;
    max-width: 700px;
    margin-bottom: 60px;
    line-height: 1.7;
}

/* ===== About ===== */
.about {
    background: var(--color-bg-alt);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text .lead {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 500;
    line-height: 1.6;
    margin-bottom: 24px;
    color: var(--color-text);
}

.about-text p {
    margin-bottom: 16px;
    color: var(--color-text-muted);
}

.about-meta {
    margin-top: 40px;
    display: grid;
    gap: 20px;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.meta-label {
    font-family: var(--font-display);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-accent);
}

.meta-value {
    font-size: 0.95rem;
    color: var(--color-text-muted);
}

.about-image {
    position: relative;
}

.image-frame {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
}

.image-frame::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    z-index: 1;
    pointer-events: none;
}

.image-frame img {
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
    filter: grayscale(30%) contrast(1.05);
    transition: var(--transition);
}

.image-frame:hover img {
    filter: grayscale(0%) contrast(1);
    transform: scale(1.02);
}

/* ===== Projects Grid ===== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 32px;
}

.projects-grid.two-col {
    grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
}

.project-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.project-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.project-content {
    padding: 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-year {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-accent);
    margin-bottom: 10px;
}

.project-content h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 6px;
    line-height: 1.3;
}

.project-type {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 14px;
    font-style: italic;
}

.project-content p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    flex: 1;
}

.project-venue {
    display: block;
    margin-top: 16px;
    font-size: 0.8rem;
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== Video Section ===== */
.video-section {
    background: var(--color-bg-alt);
}

/* ===== Music Section ===== */
.music-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.music-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.music-card:hover {
    border-color: var(--color-accent-secondary);
    transform: translateY(-3px);
}

.music-icon {
    font-size: 1.8rem;
    line-height: 1;
    flex-shrink: 0;
    opacity: 0.7;
}

.music-content h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.music-content .project-type {
    margin-bottom: 10px;
}

.music-content p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.music-content a {
    display: inline-block;
    margin-top: 10px;
    font-size: 0.85rem;
}

/* ===== Tech Section ===== */
.tech {
    background: var(--color-bg-alt);
}

/* ===== Sequential ===== */
.sequential {
    background: var(--color-bg);
}

/* ===== CV Section ===== */
.cv-section {
    background: var(--color-bg-alt);
}

.cv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 48px;
}

.cv-column h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
    color: var(--color-accent);
}

.cv-list {
    list-style: none;
    margin-bottom: 40px;
}

.cv-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.cv-list li strong {
    color: var(--color-text);
    font-weight: 600;
    margin-right: 6px;
}

/* ===== Gallery ===== */
.gallery {
    background: var(--color-bg);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 8px;
}

.gallery-item {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    cursor: pointer;
    border-radius: var(--radius);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0);
    transition: background 0.3s ease;
}

.gallery-item:hover::after {
    background: rgba(0,0,0,0.2);
}

/* ===== PDF Section ===== */
.pdf-section {
    background: var(--color-bg);
}

.pdf-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.pdf-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
}

.pdf-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.pdf-icon {
    font-size: 2.5rem;
    line-height: 1;
}

.pdf-content h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text);
}

.pdf-content p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 12px;
}

.pdf-meta {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-dim);
    margin-bottom: 12px;
}

.pdf-download {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    padding: 10px 20px;
    border-radius: var(--radius);
    transition: var(--transition);
}

.pdf-card:hover .pdf-download {
    background: var(--color-accent);
    color: #fff;
}

/* ===== Contact ===== */
.contact {
    background: var(--color-bg-alt);
    text-align: center;
}

.contact-grid {
    max-width: 600px;
    margin: 0 auto;
}

.contact .lead {
    font-family: var(--font-display);
    font-size: 1.2rem;
    margin-bottom: 48px;
    color: var(--color-text-muted);
}

.contact-items {
    display: grid;
    gap: 28px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.contact-label {
    font-family: var(--font-display);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-accent);
}

.contact-item a,
.contact-item span {
    font-size: 1.1rem;
    color: var(--color-text);
}

/* ===== Footer ===== */
.footer {
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--color-border);
    font-size: 0.85rem;
    color: var(--color-text-dim);
}

/* ===== Lightbox ===== */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--radius);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: none;
    border: none;
    color: var(--color-text);
    font-size: 2.5rem;
    cursor: pointer;
    padding: 8px 16px;
    transition: color 0.2s;
    line-height: 1;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    color: var(--color-accent);
}

.lightbox-close {
    top: 16px;
    right: 24px;
}

.lightbox-prev {
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next {
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .projects-grid,
    .projects-grid.two-col {
        grid-template-columns: 1fr;
    }

    .cv-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        right: -100%;
        width: 280px;
        height: calc(100vh - var(--nav-height));
        background: var(--color-bg);
        border-left: 1px solid var(--color-border);
        flex-direction: column;
        padding: 32px;
        gap: 24px;
        transition: right 0.3s ease;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .section {
        padding: 64px 0;
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.8rem;
    }

    .hero-subtitle {
        letter-spacing: 3px;
        font-size: 0.85rem;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.75rem;
    }

    .project-content {
        padding: 20px;
    }

    .music-card {
        flex-direction: column;
        padding: 24px;
    }
}

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

    html {
        scroll-behavior: auto;
    }
}