:root {
    --bg:          #000000;
    --fg:          #ffffff;
    --font-sans:   'Outfit', sans-serif;
    --font-serif:  'Playfair Display', serif;
    --transition:  cubic-bezier(0.16, 1, 0.3, 1);
}

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

body, html {
    background-color: var(--bg);
    color: var(--fg);
    font-family: var(--font-sans);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── Scroll progress bar ──────────────────────────────────────── */
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: rgba(255,255,255,0.25);
    transform-origin: left center;
    transform: scaleX(0);
    z-index: 9998;
    pointer-events: none;
    will-change: transform;
}

/* ── Photo caption (location + year on image hover) ──────────── */
#photo-caption {
    position: fixed;
    bottom: 3.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 200;
    pointer-events: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    opacity: 0;
    transition: opacity 0.5s ease;
    white-space: nowrap;
}

#photo-caption.visible { opacity: 1; }

#caption-location,
#caption-year {
    font-family: var(--font-sans);
    font-size: 0.62rem;
    font-weight: 300;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.55);
}

#caption-divider {
    font-size: 0.5rem;
    opacity: 0.3;
    color: #fff;
}

/* Hide caption divider when only one field is present */
#photo-caption:not(.visible) #caption-divider { display: none; }

/* ── Custom Cursor ───────────────────────────────────────────── */
/* Always hide the native cursor on non-touch; show custom one   */
body { cursor: none; }

.cursor-dot {
    width: 6px;
    height: 6px;
    background-color: var(--fg);
    border-radius: 50%;
    position: fixed;
    top: 0; left: 0;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: difference;
    transition: transform 0.1s ease;
}

.cursor-ring {
    width: 30px;
    height: 30px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    position: fixed;
    top: 0; left: 0;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 9998;
    mix-blend-mode: difference;
    transition: width 0.3s ease, height 0.3s ease, background-color 0.3s ease;
}

body.hovering .cursor-dot {
    transform: translate(-50%, -50%) scale(0);
}
body.hovering .cursor-ring {
    width: 60px;
    height: 60px;
    background-color: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(2px);
}

/* Touch devices: restore native cursor, hide custom elements */
@media (pointer: coarse) {
    body { cursor: auto; }
    .cursor-dot,
    .cursor-ring { display: none !important; }
}

/* ── Cinematic Grain Overlay ──────────────────────────────────── */
body::after {
    content: "";
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.05;
    z-index: 9000;
    pointer-events: none;
    mix-blend-mode: color-dodge;
}

/* ── WebGL Canvas ─────────────────────────────────────────────── */
canvas#spatial-canvas {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1;
}

/* ── Scroll proxy ─────────────────────────────────────────────── */
#scroll-proxy {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 15000px; /* overridden by PortfolioScene */
    z-index: 0;
}

/* ── Fixed HUD (index page) ───────────────────────────────────── */
.hud {
    position: fixed;
    inset: 0;
    z-index: 100;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2.5rem 3rem;
    mix-blend-mode: difference;
}

.hud a,
.hud .logo,
.hud .hero-title { pointer-events: auto; }

.hud-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 500;
    letter-spacing: 0.15em;
    font-size: 0.8rem;
    text-transform: uppercase;
}

nav { display: flex; gap: 3rem; }

.nav-elem {
    text-decoration: none;
    color: var(--fg);
    font-size: 0.75rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}
.nav-elem:hover { opacity: 1; }

/* ── Hero & End overlays ──────────────────────────────────────── */
.hero-overlay,
.end-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    width: 100%;
    z-index: 50;
    pointer-events: none;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.2rem, 8vw, 7rem);
    font-weight: 400;
    line-height: 0.9;
    letter-spacing: -0.02em;
    margin-bottom: 1.2rem;
    white-space: nowrap;
    text-transform: uppercase;
}

@media (max-width: 600px) {
    .hero-title { white-space: normal; font-size: clamp(2rem, 10vw, 3.5rem); }
}

.hero-subtitle {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 300;
    letter-spacing: 0.4em;
    opacity: 0.6;
}

/* ── HUD Footer ───────────────────────────────────────────────── */
.hud-footer {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.scroll-prompt {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    font-weight: 300;
    opacity: 0.7;
}

.indicator {
    width: 1px;
    height: 30px;
    background: rgba(255,255,255,0.2);
    position: relative;
    overflow: hidden;
}
.indicator::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 50%;
    background: #fff;
    animation: scroll-anim 1.5s infinite var(--transition);
}

@keyframes scroll-anim {
    0%   { transform: translateY(-100%); }
    100% { transform: translateY(200%); }
}

.coordinates {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    font-weight: 300;
    opacity: 0.5;
}

/* ── Mobile HUD adjustments ───────────────────────────────────── */
@media (max-width: 600px) {
    .hud { padding: 1.5rem; }
    nav { gap: 1.5rem; }
    .hud-footer { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
}

/* ── Lenis overrides ──────────────────────────────────────────── */
html.lenis                           { height: auto; }
.lenis.lenis-smooth                  { scroll-behavior: auto; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped                 { overflow: hidden; }
.lenis.lenis-scrolling iframe        { pointer-events: none; }