/* ══════════════════════════════════════════════════════════════════
   ALTO — Shared Stylesheet
   All pages link to this file. Page-specific styles live inline.
   ══════════════════════════════════════════════════════════════════ */

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

:root {
    /* OKLCH palette */
    --bg:        oklch(7.5%  0.012 254);
    --bg-2:      oklch(10.5% 0.015 254);
    --text:      oklch(98%   0.004 254);
    --muted:     oklch(62%   0.010 254);
    --dim:       oklch(32%   0.010 254);
    --border:    oklch(98%   0.004 254 / 9%);
    --border-h:  oklch(98%   0.004 254 / 22%);
    --accent:    oklch(65%   0.18  264);

    /* Motion tokens */
    --ease-expo:  cubic-bezier(0.16, 1, 0.3, 1);
    --ease-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --dur-snap:   150ms;
    --dur-mid:    300ms;
    --dur-slow:   700ms;

    /* Fluid type scale */
    --t-hero:  clamp(64px, 9vw, 136px);
    --t-title: clamp(52px, 7vw, 100px);
    --t-sub:   clamp(28px, 3vw, 46px);

    /* Spacing */
    --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px;
    --sp-5: 24px; --sp-6: 32px; --sp-7: 48px;
    --sp-8: 64px; --sp-9: 96px; --sp-10: 128px;
    --gutter: 56px;
}

html { scroll-behavior: smooth; overflow-x: clip; }

body {
    background:
        radial-gradient(125% 125% at 50% -10%, oklch(45% 0.15 264 / 9%) 40%, transparent 100%),
        oklch(7.5% 0.012 254);
    background-attachment: fixed;
    color: var(--text);
    font-family: 'Cabinet Grotesk', system-ui, sans-serif;
    font-weight: 400;
    line-height: 1.6;
    /* clip, not hidden — hidden creates a scroll container when html
       isn't `visible`, which breaks position:sticky (work page carousel) */
    overflow-x: clip;
}

/* ── BACKGROUND ─────────────────────────────────────────────────── */
.bg-orbs {
    position: fixed; inset: 0;
    pointer-events: none; overflow: hidden;
    z-index: 0;
}
.bg-vignette {
    position: absolute;
    top: 0; left: 50%; transform: translateX(-50%);
    width: 140%; height: 80vh;
    background: radial-gradient(ellipse 68% 80% at 50% 0%,
        oklch(46% 0.17 264 / 11%) 0%,
        oklch(46% 0.17 264 / 4%) 42%,
        transparent 70%
    );
    animation: vignette-breathe 9s ease-in-out infinite alternate;
    will-change: opacity;
}
@keyframes vignette-breathe {
    from { opacity: 0.58; }
    to   { opacity: 1; }
}
#starCanvas {
    position: absolute; inset: 0;
    pointer-events: none;
}

/* ── FILM GRAIN ──────────────────────────────────────────────────── */
.grain {
    position: fixed; inset: 0;
    pointer-events: none; z-index: 9998;
    opacity: 0.032;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='256' height='256'%3E%3Cfilter id='n' x='0' y='0'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.88' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='256' height='256' filter='url(%23n)'/%3E%3C%2Fsvg%3E");
    background-repeat: repeat;
    background-size: 180px 180px;
}

/* ── SITE WRAP ───────────────────────────────────────────────────── */
.site-wrap { position: relative; z-index: 1; }

/* ── PAGE TRANSITION OVERLAY ─────────────────────────────────────── */
.page-transition {
    position: fixed; inset: 0;
    background: var(--bg);
    z-index: 9990;
    pointer-events: none;
    clip-path: inset(0 0 0 0);
    will-change: clip-path;
}

/* ── CURSOR ──────────────────────────────────────────────────────── */
.cursor, .cursor-ring {
    position: fixed; top: 0; left: 0;
    border-radius: 50%;
    pointer-events: none; z-index: 9999;
    transform: translate(-50%, -50%);
}
.cursor {
    width: 7px; height: 7px;
    background: var(--text);
    mix-blend-mode: difference;
    transition: width var(--dur-mid) var(--ease-expo),
                height var(--dur-mid) var(--ease-expo);
}
.cursor-ring {
    width: 36px; height: 36px;
    border: 1px solid oklch(95% 0.006 254 / 20%);
    transition: width var(--dur-slow) var(--ease-expo),
                height var(--dur-slow) var(--ease-expo),
                border-color var(--dur-mid) ease;
}
.cursor.big { width: 5px; height: 5px; }
.cursor-ring.big { width: 56px; height: 56px; border-color: oklch(95% 0.006 254 / 40%); }

/* ── HAMBURGER ───────────────────────────────────────────────────── */
.nav-burger {
    display: none; flex-direction: column;
    justify-content: center; align-items: center; gap: 6px;
    background: none; border: none; cursor: pointer;
    padding: 6px 4px; z-index: 201;
    min-width: 44px; min-height: 44px;
}
.nav-burger span {
    display: block; width: 22px; height: 1.5px;
    background: var(--text);
    transition: transform var(--dur-mid) var(--ease-expo),
                opacity var(--dur-snap) ease;
    transform-origin: center;
}
.nav-burger.open span:first-child { transform: translateY(7.5px) rotate(45deg); }
.nav-burger.open span:last-child  { transform: translateY(-7.5px) rotate(-45deg); }

/* ── MOBILE MENU ─────────────────────────────────────────────────── */
.mobile-menu {
    position: fixed; inset: 0; z-index: 190;
    background: oklch(7.5% 0.015 254 / 97%);
    backdrop-filter: blur(28px);
    display: flex; flex-direction: column;
    align-items: flex-start; justify-content: flex-end;
    padding: 0 var(--gutter) 60px; gap: 0;
    transform: translateY(-100%);
    transition: transform 600ms var(--ease-expo);
    pointer-events: none;
}
.mobile-menu.open { transform: translateY(0); pointer-events: all; }
.mm-link {
    display: block;
    font-family: 'Clash Display', sans-serif;
    font-size: clamp(48px, 15vw, 72px);
    font-weight: 600; line-height: 1.0;
    letter-spacing: -0.03em; text-transform: uppercase;
    color: var(--text); text-decoration: none;
    padding: 10px 0;
    opacity: 0; transform: translateY(24px);
    transition: opacity 400ms ease, transform 400ms var(--ease-expo),
                color var(--dur-mid) ease;
}
.mobile-menu.open .mm-link { opacity: 1; transform: none; }
.mobile-menu.open .mm-link:nth-child(1) { transition-delay: 80ms; }
.mobile-menu.open .mm-link:nth-child(2) { transition-delay: 140ms; }
.mobile-menu.open .mm-link:nth-child(3) { transition-delay: 200ms; }
.mm-link:active { color: var(--muted); }
.mm-divider {
    width: 100%; height: 1px;
    background: var(--border); margin: 32px 0;
    opacity: 0; transition: opacity 400ms ease 220ms;
}
.mobile-menu.open .mm-divider { opacity: 1; }
.mm-cta-row {
    display: flex; flex-direction: column; align-items: flex-start;
    gap: 16px; width: 100%;
    opacity: 0; transform: translateY(12px);
    transition: opacity 400ms ease 260ms, transform 400ms var(--ease-expo) 260ms;
}
.mobile-menu.open .mm-cta-row { opacity: 1; transform: none; }
.mm-email {
    font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--muted); text-decoration: none;
}
.mm-book {
    font-size: 11px; letter-spacing: 0.15em; text-transform: uppercase;
    color: var(--text); text-decoration: none; padding: 10px 20px;
    border: 1px solid oklch(98% 0.004 254 / 32%);
    transition: background var(--dur-mid) ease;
}
.mm-book:active { background: oklch(98% 0.004 254 / 10%); }

/* ── NAV ─────────────────────────────────────────────────────────── */
nav {
    position: fixed; inset: 0 0 auto 0; z-index: 200;
    display: flex; align-items: center; justify-content: space-between;
    padding: 28px var(--gutter);
    transition: padding var(--dur-slow) var(--ease-quart),
                background var(--dur-slow) ease,
                border-color var(--dur-slow) ease;
    border-bottom: 1px solid transparent;
}
nav.scrolled {
    padding-block: 18px;
    background: oklch(7.5% 0.012 254 / 55%);
    backdrop-filter: blur(24px);
    border-color: var(--border);
}
.nav-logo {
    font-family: 'Clash Display', sans-serif;
    font-weight: 600; font-size: 20px;
    letter-spacing: 0.08em; text-transform: uppercase;
    color: var(--text); text-decoration: none;
    text-shadow: 0 0 28px oklch(60% 0.14 264 / 18%);
}
.nav-right { display: flex; align-items: center; gap: var(--sp-8); }
.nav-link {
    font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
    color: oklch(72% 0.010 254); text-decoration: none;
    transition: color var(--dur-mid) ease;
    position: relative;
}
.nav-link:hover { color: var(--text); }
.nav-link.active { color: var(--text); }
.nav-link.active::after {
    content: ''; position: absolute;
    bottom: -3px; left: 0; right: 0;
    height: 1px; background: var(--text); opacity: 0.4;
}
.nav-cta {
    padding: 12px 32px;
    background: oklch(98% 0.004 254 / 6%);
    border: 1px solid oklch(98% 0.004 254 / 32%);
    color: var(--text); font-size: 11px;
    letter-spacing: 0.15em; text-transform: uppercase;
    text-decoration: none;
    transition: background var(--dur-mid) ease, border-color var(--dur-mid) ease,
                transform var(--dur-mid) var(--ease-expo);
}
.nav-cta:hover {
    background: oklch(98% 0.004 254 / 13%);
    border-color: oklch(98% 0.004 254 / 55%);
    transform: translateY(-1px);
}

/* ── SECTION UTILITIES ───────────────────────────────────────────── */
.section { padding: var(--sp-10) var(--gutter); }
.sec-label {
    display: flex; align-items: center; gap: 14px;
    font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--muted); margin-bottom: var(--sp-4);
}
.sec-label::before { content: ''; width: 20px; height: 1px; background: var(--muted); }

/* ── SPOTLIGHT CARD ──────────────────────────────────────────────── */
[data-glow] {
    --glow-base:   222;
    --glow-spread: 20;
    --glow-size:   320;
    --glow-hue: calc(var(--glow-base) + (var(--xp, 0.5) * var(--glow-spread)));
    --glow-spot: calc(var(--glow-size) * 1px);
    background-image: radial-gradient(
        var(--glow-spot) var(--glow-spot) at
        calc(var(--x, 9999) * 1px) calc(var(--y, 9999) * 1px),
        hsl(var(--glow-hue) 70% 65% / 0.07),
        transparent
    );
    background-attachment: fixed;
    position: relative;
}
[data-glow]::before, [data-glow]::after {
    pointer-events: none; content: "";
    position: absolute; inset: -1px;
    border: 1px solid transparent;
    border-radius: inherit;
    background-attachment: fixed;
    -webkit-mask: linear-gradient(#0000, #0000), linear-gradient(#fff, #fff);
    -webkit-mask-clip: padding-box, border-box;
    -webkit-mask-composite: destination-in;
    mask: linear-gradient(#0000, #0000), linear-gradient(#fff, #fff);
    mask-clip: padding-box, border-box;
    mask-composite: intersect;
}
[data-glow]::before {
    background-image: radial-gradient(
        calc(var(--glow-spot) * 0.75) calc(var(--glow-spot) * 0.75) at
        calc(var(--x, 9999) * 1px) calc(var(--y, 9999) * 1px),
        hsl(var(--glow-hue) 80% 55% / 0.9), transparent 100%
    );
    filter: brightness(2);
}
[data-glow]::after {
    background-image: radial-gradient(
        calc(var(--glow-spot) * 0.5) calc(var(--glow-spot) * 0.5) at
        calc(var(--x, 9999) * 1px) calc(var(--y, 9999) * 1px),
        hsl(0 0% 100% / 0.1), transparent 100%
    );
}

/* ── MAGNETIC BUTTON ─────────────────────────────────────────────── */
[data-magnetic] { will-change: transform; }

/* ── REVEAL UTILITIES ────────────────────────────────────────────── */
.rv { opacity: 0; transform: translateY(28px); }
.rv.in {
    opacity: 1; transform: none;
    transition: opacity var(--dur-slow) var(--ease-expo),
                transform var(--dur-slow) var(--ease-expo);
}
.d1.in { transition-delay: 100ms; }
.d2.in { transition-delay: 200ms; }
.d3.in { transition-delay: 300ms; }
.d4.in { transition-delay: 400ms; }

/* ── FOOTER ──────────────────────────────────────────────────────── */
footer {
    padding: 36px var(--gutter);
    border-top: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
}
.f-logo {
    font-family: 'Clash Display', sans-serif;
    font-weight: 500; font-size: 17px;
    letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted);
    text-decoration: none;
}
.f-copy { font-size: 11px; letter-spacing: 0.1em; color: var(--dim); }
.f-links { display: flex; gap: 28px; list-style: none; }
.f-links a {
    font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
    color: var(--muted); text-decoration: none;
    transition: color var(--dur-mid) ease;
}
.f-links a:hover { color: var(--text); }

/* ── MARQUEE ─────────────────────────────────────────────────────── */
.marquee-wrap {
    overflow: hidden;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
    background: oklch(10.5% 0.015 254 / 78%);
}
.marquee-track {
    display: flex; width: max-content;
    animation: marquee 32s linear infinite;
}
.marquee-track:hover { animation-play-state: paused; }
.marquee-group {
    display: flex; align-items: center;
    gap: 40px; padding-right: 40px; white-space: nowrap;
    font-family: 'Clash Display', sans-serif;
    font-weight: 500; font-size: 12px;
    letter-spacing: 0.16em; text-transform: uppercase;
    color: var(--muted);
}
.marquee-sep {
    width: 4px; height: 4px; border-radius: 50%;
    background: var(--dim); flex-shrink: 0;
}
@keyframes marquee {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

/* ── PULSE ANIMATIONS ────────────────────────────────────────────── */
@keyframes pulse {
    0%,100% { opacity: .35; transform: scaleY(1); }
    50%      { opacity: 1;  transform: scaleY(.6); }
}
@keyframes pulse-live {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.4; }
}

/* ── REDUCED MOTION ──────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    .bg-vignette { animation: none; opacity: 0.8; }
    .grain { display: none; }
    .marquee-track { animation: none; }
    [data-glow] { background-image: none; }
    [data-glow]::before, [data-glow]::after { display: none; }
    .rv { opacity: 1; transform: none; }
}

/* ── RESPONSIVE BASE ─────────────────────────────────────────────── */
@media (max-width: 768px) {
    :root {
        --gutter: 20px;
        --t-hero:  clamp(44px, 11.5vw, 64px);
        --t-title: clamp(38px, 10vw, 56px);
    }
    body { background-attachment: scroll; }
    nav, nav.scrolled { padding-inline: var(--gutter); }
    nav { padding-block: 14px; }
    nav.scrolled { padding-block: 10px; }
    .nav-link { display: none; }
    .nav-right { gap: 10px; }
    /* Keep the CTA reachable above the fold on mobile */
    .nav-cta { font-size: 10px; padding: 11px 16px; letter-spacing: 0.12em; }
    .nav-burger { display: flex; }
    footer { flex-direction: column; gap: var(--sp-4); text-align: center; }
    .marquee-wrap { padding: 10px 0; }
    .marquee-group { font-size: 10px; gap: 24px; padding-right: 24px; }
}
@media (max-height: 500px) {
    :root { --gutter: 24px; }
    body { background-attachment: scroll; }
    nav { padding-block: 12px; padding-inline: var(--gutter); }
    .nav-link, .nav-cta { display: none; }
    .nav-burger { display: flex; }
    footer { flex-direction: row; }
}