/* ═══════════════════════════════════════════════════
   VLADISLAV POPOV — godly-level portfolio
   Instrument Serif for headlines, Space Grotesk for UI,
   Inter for body. GSAP + Lenis powered.
   ═══════════════════════════════════════════════════ */

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

/* ── Tokens ── */
[data-theme="dark"] {
    --bg: #08080a;
    --surface: #111114;
    --text: #f0f0f0;
    --text-2: #8a8a9a;
    --text-3: #4a4a5a;
    --accent: #c8b6ff;
    --accent-dim: rgba(200,182,255,0.08);
    --border: rgba(255,255,255,0.06);
    --border-h: rgba(255,255,255,0.12);
    --grad: linear-gradient(135deg,#c8b6ff,#ffc6ff,#ffb3c6);
    --nav-bg: rgba(8,8,10,0.7);
    --t-dark: 1; --t-light: 0;
}
[data-theme="light"] {
    --bg: #f7f5f0;
    --surface: #ffffff;
    --text: #0a0a0e;
    --text-2: #3a3a4a;
    --text-3: #7a7a8a;
    --accent: #4f3cc9;
    --accent-dim: rgba(79,60,201,0.06);
    --border: rgba(0,0,0,0.08);
    --border-h: rgba(0,0,0,0.16);
    --grad: linear-gradient(135deg,#4f3cc9,#8b3fa0,#d63384);
    --nav-bg: rgba(247,245,240,0.8);
    --t-dark: 0; --t-light: 1;
}

html { scroll-behavior: initial; /* Lenis handles smooth scroll */ }

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    transition: background 0.5s, color 0.5s;
    overflow-x: hidden;
}

.custom-cursor, .custom-cursor a, .custom-cursor button { cursor: none !important; }

::selection {
    background: var(--accent);
    color: var(--bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 48px);
}

a { color: inherit; text-decoration: none; }

em { font-family: 'Cormorant Garamond', serif; font-style: italic; }

/* ── Grain ── */
.grain {
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px;
}

/* ── Cursor ── */
.cursor {
    position: fixed;
    width: 40px; height: 40px;
    border: 1px solid var(--text-2);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%,-50%);
    transition: width 0.3s cubic-bezier(0.16,1,0.3,1), height 0.3s cubic-bezier(0.16,1,0.3,1), border-color 0.3s, background 0.3s;
    mix-blend-mode: difference;
}
.cursor-dot {
    position: fixed;
    width: 8px; height: 8px;
    background: var(--accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%,-50%);
    box-shadow: 0 0 6px var(--accent);
}
.cursor-hover {
    width: 64px; height: 64px;
    border-color: var(--accent);
    background: rgba(200,182,255,0.08);
}

/* ── Nav ── */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px clamp(20px, 4vw, 48px);
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: background 0.5s;
}

.nav-name {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: -0.02em;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links {
    display: flex;
    gap: 28px;
}

.nav-links a {
    font-size: 0.85rem;
    color: var(--text-2);
    transition: color 0.25s;
    letter-spacing: -0.01em;
}

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

.theme-btn {
    font-family: 'Inter', sans-serif;
    font-size: 0.8rem;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 100px;
    background: transparent;
    color: var(--text-2);
    cursor: pointer;
    transition: all 0.25s;
}

.theme-btn:hover {
    border-color: var(--border-h);
    color: var(--text);
}

.t-dark { opacity: var(--t-dark); display: var(--t-dark, inline); }
.t-light { opacity: var(--t-light); display: var(--t-light, inline); }
[data-theme="dark"] .t-light { display: none; }
[data-theme="light"] .t-dark { display: none; }

/* ── Hero ── */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 140px 0 80px;
    position: relative;
}

.hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 48px);
    width: 100%;
}

.hero-eyebrow {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 32px;
}

.hero-h1 {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(3rem, 6vw, 5.5rem);
    font-weight: 400;
    line-height: 1.0;
    letter-spacing: -0.03em;
    margin-bottom: 48px;
}

.hero-h1 .line {
    display: block;
    overflow: hidden;
}

.hero-h1 em {
    background: var(--grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-bottom {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 48px;
}

.hero-desc {
    max-width: 480px;
}

.hero-desc p {
    font-size: 1.1rem;
    color: var(--text-2);
    line-height: 1.75;
}

.hero-photo-wrap {
    flex-shrink: 0;
}

.hero-photo {
    width: 220px;
    height: 220px;
    border-radius: 20px;
    object-fit: cover;
    filter: grayscale(20%) contrast(1.05);
    transition: filter 0.4s, transform 0.4s;
    border: 2px solid var(--border);
}

.hero-photo:hover {
    transform: scale(1.03);
}

.hero-photo:hover {
    filter: grayscale(0%) contrast(1.05);
}

/* Scroll hint */
.scroll-hint {
    position: absolute;
    bottom: 40px;
    left: clamp(20px, 4vw, 48px);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-3);
}

.scroll-line {
    width: 1px;
    height: 48px;
    background: var(--text-3);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--accent);
    animation: scroll-anim 2s ease-in-out infinite;
}

@keyframes scroll-anim {
    0% { top: -100%; }
    50% { top: 100%; }
    100% { top: 100%; }
}

/* ── Marquee ── */
.marquee-wrap {
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 24px 0;
    overflow: hidden;
}

.marquee { overflow: hidden; }

.marquee-track {
    display: flex;
    gap: 0;
    white-space: nowrap;
    animation: marquee 30s linear infinite;
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(0.9rem, 1.5vw, 1.1rem);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text-3);
}

.marquee-track span { padding: 0 16px; }
.marquee-track .sep { color: var(--accent); opacity: 0.4; }

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ── Sections ── */
.section {
    padding: clamp(60px, 8vw, 100px) 0;
}

.label {
    display: inline-block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 48px;
}

/* ── Work ── */
.work-item {
    display: flex;
    align-items: center;
    gap: 32px;
    padding: 40px 0;
    border-bottom: 1px solid var(--border);
    transition: all 0.4s cubic-bezier(0.16,1,0.3,1);
    position: relative;
}

.work-item:first-of-type {
    border-top: 1px solid var(--border);
}

a.work-item:hover {
    padding-left: 24px;
}

a.work-item:hover .work-arrow {
    opacity: 1;
    transform: translate(4px, -4px);
}

a.work-item:hover .work-content h2 {
    background: var(--grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.work-num {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-3);
    min-width: 36px;
    font-variant-numeric: tabular-nums;
}

.work-content { flex: 1; }

.work-content h2 {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 400;
    letter-spacing: -0.02em;
    margin-bottom: 4px;
    transition: all 0.3s;
}

.work-content p {
    color: var(--text-2);
    font-size: 0.9rem;
    max-width: 480px;
}

.work-meta {
    display: flex;
    align-items: center;
    gap: 24px;
    min-width: 200px;
    justify-content: space-between;
    flex-shrink: 0;
}

.work-tag {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-3);
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 100px;
    white-space: nowrap;
}

.work-arrow {
    color: var(--accent);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.16,1,0.3,1);
    flex-shrink: 0;
}

/* ── Impact Stats ── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
}

.stat {
    background: var(--surface);
    padding: 48px 36px;
    text-align: center;
    transition: background 0.3s;
}

.stat:hover {
    background: var(--accent-dim);
}

.stat-num {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(3rem, 5vw, 4.5rem);
    font-weight: 400;
    line-height: 1;
    margin-bottom: 12px;
    background: var(--grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-small {
    font-size: 0.4em;
    vertical-align: super;
}

.stat-desc {
    font-size: 0.85rem;
    color: var(--text-2);
    line-height: 1.4;
    max-width: 200px;
    margin: 0 auto;
}

/* ── Capabilities ── */
.caps-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.cap-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px;
    transition: all 0.4s cubic-bezier(0.16,1,0.3,1);
    position: relative;
    overflow: hidden;
}

.cap-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--grad);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.16,1,0.3,1);
}

.cap-card:hover {
    border-color: var(--border-h);
    transform: translateY(-4px);
}

.cap-card:hover::before {
    transform: scaleX(1);
}

.cap-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 12px;
}

.cap-card p {
    font-size: 0.9rem;
    color: var(--text-2);
    line-height: 1.65;
}

/* ── Steps ── */
.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 48px;
}

.step {
    background: var(--surface);
    padding: 40px 32px;
    transition: background 0.3s;
}

.step:hover {
    background: var(--accent-dim);
}

.step-num {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 20px;
}

.step h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.step p {
    font-size: 0.88rem;
    color: var(--text-2);
    line-height: 1.6;
}

.cta-row {
    text-align: center;
}

.cta-btn {
    display: inline-block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    padding: 18px 48px;
    border: 1px solid var(--accent);
    border-radius: 100px;
    color: var(--text);
    transition: all 0.3s cubic-bezier(0.16,1,0.3,1);
    letter-spacing: -0.01em;
}

.cta-btn:hover {
    background: var(--accent);
    color: var(--bg);
    transform: translateY(-3px);
}

/* ── About ── */
.about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    margin-bottom: 80px;
}

.about-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 400;
    line-height: 1.25;
    letter-spacing: -0.02em;
}

.about-big {
    font-size: 1.2rem;
    line-height: 1.65;
    margin-bottom: 20px;
}

.about-right p {
    color: var(--text-2);
    font-size: 1rem;
    line-height: 1.7;
}

/* Credentials */
.creds {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
}

.cred {
    background: var(--surface);
    padding: 36px;
    transition: background 0.3s;
}

.cred:hover { background: var(--accent-dim); }

.cred-year {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}

.cred h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}

.cred p {
    font-size: 0.85rem;
    color: var(--text-2);
    line-height: 1.5;
}

/* ── Quote ── */
.section-quote {
    padding: clamp(48px, 6vw, 80px) 0;
}

.big-quote {
    border: none;
    margin: 0;
    padding: 0;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.big-quote p {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(1.5rem, 3.5vw, 2.5rem);
    line-height: 1.4;
    letter-spacing: -0.02em;
    color: var(--text-2);
}

.q-accent {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    background: var(--grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ── Contact ── */
.section-contact {
    padding-bottom: 80px;
}

.contact-h2 {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(2rem, 5vw, 4.5rem);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 48px;
}

.contact-h2 .line {
    display: block;
    overflow: hidden;
}

.contact-h2 em {
    background: var(--grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-links {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.contact-btn {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 24px 36px;
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: all 0.3s cubic-bezier(0.16,1,0.3,1);
    min-width: 220px;
}

.contact-btn:hover {
    border-color: var(--accent);
    background: var(--accent-dim);
    transform: translateY(-4px);
}

.contact-btn span:first-child {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 1rem;
}

.contact-sub {
    font-size: 0.8rem;
    color: var(--text-3);
}

/* ── Footer ── */
footer {
    border-top: 1px solid var(--border);
    padding: 24px 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-3);
}

/* ── Scroll reveal (CSS-driven, no GSAP dependency) ── */
[data-animate="fade-up"] {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1), transform 0.8s cubic-bezier(0.16,1,0.3,1);
}
[data-animate="fade-up"].is-visible {
    opacity: 1;
    transform: none;
}
/* Hero elements — visible by default, GSAP animates on desktop only */
.hero [data-animate="fade-up"],
.hero-bottom,
.hero-eyebrow,
.scroll-hint,
.hero-h1 .line-inner {
    opacity: 1 !important;
    transform: none !important;
}
/* Work items — always visible, animated by CSS */
.work-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1), padding 0.4s cubic-bezier(0.16,1,0.3,1);
}
.work-item.is-visible {
    opacity: 1;
    transform: none;
}
/* Cap cards */
.cap-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1), border-color 0.3s, background 0.3s;
}
.cap-card.is-visible {
    opacity: 1;
    transform: none;
}

/* ── Responsive ── */
@media (max-width: 900px) {
    .nav-links { gap: 12px; }
    .nav-links a { font-size: 0.75rem; }

    /* Hero: force visible on mobile, no GSAP interference */
    .hero-eyebrow,
    .hero-bottom,
    .hero-h1 .line-inner,
    .hero-photo-wrap,
    .scroll-hint {
        opacity: 1 !important;
        transform: none !important;
    }

    .hero-bottom { flex-direction: column; align-items: flex-start; gap: 32px; }
    .hero-photo { width: 120px; height: 120px; }

    /* Work items: stack vertically, aligned left */
    .work-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        padding: 24px 0;
    }
    .work-num { font-size: 0.75rem; }
    .work-content { width: 100%; }
    .work-content h2 { font-size: 1.4rem; }
    .work-content p { max-width: 100%; }
    .work-tag { margin-top: 4px; }
    .work-arrow { display: none; }

    /* Caps cards */
    .cap-card { padding: 28px 24px; }

    /* Creds */
    .cred { padding: 24px; }

    /* Contact */
    .contact-btn { padding: 20px 24px; min-width: auto; }
    .contact-links { flex-direction: column; }

    .about-layout { grid-template-columns: 1fr; gap: 32px; }
    .creds { grid-template-columns: 1fr; }
    .caps-grid { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr 1fr; }
    .step { padding: 28px 24px; }
}

@media (max-width: 480px) {
    .hero { padding: 120px 0 80px; }
    .hero-h1 { margin-bottom: 40px; }
    .section { padding: 64px 0; }
    .scroll-hint { display: none; }
    .steps { grid-template-columns: 1fr; }
    .hero-h1 { font-size: 2.8rem; }
}