/* ============================================================
   SPACE VISION PROJECTS — motion.css
   Motion-graphic layer: page transitions, cursor, image reveals,
   kinetic type, horizontal story, lightbox. All of it switches off
   under prefers-reduced-motion.
   ============================================================ */

/* ---------- Page transition curtain ---------- */
.curtain { position: fixed; inset: 0; z-index: 400; pointer-events: none; display: grid; grid-template-columns: repeat(5, 1fr); }
.curtain i { background: var(--ink); transform-origin: top; transform: scaleY(1); transition: transform .5s cubic-bezier(.76, 0, .24, 1); }
.curtain i:nth-child(2) { transition-delay: .03s; } .curtain i:nth-child(3) { transition-delay: .06s; }
.curtain i:nth-child(4) { transition-delay: .09s; } .curtain i:nth-child(5) { transition-delay: .12s; }
/* Direct visits never show the curtain, so nothing covers the nav or hero */
html.no-curtain:not(.is-leaving) .curtain { visibility: hidden; }
.curtain-mark { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 120px; color: var(--paper); opacity: 1; transition: opacity .3s; }
html.is-loaded .curtain i { transform: scaleY(0); transform-origin: bottom; }
html.is-loaded .curtain-mark { opacity: 0; }
html.is-leaving .curtain i { transform: scaleY(1); transform-origin: top; transition-delay: 0s; }
html.is-leaving .curtain i:nth-child(2) { transition-delay: .03s; } html.is-leaving .curtain i:nth-child(3) { transition-delay: .06s; }
html.is-leaving .curtain i:nth-child(4) { transition-delay: .09s; } html.is-leaving .curtain i:nth-child(5) { transition-delay: .12s; }
html:not(.motion-ok) .curtain { display: none; }
.curtain-mark { width: 120px; color: var(--paper); }
.curtain-mark .mark-line { stroke-dasharray: 1; stroke-dashoffset: 0; }
html.motion-ok:not(.is-loaded) .curtain-mark .mark-line, html.is-leaving .curtain-mark .mark-line { animation: markTrace .9s cubic-bezier(.65, 0, .35, 1) both; }
html.is-leaving .curtain-mark { opacity: 1; transition-delay: .2s; }

/* ---------- Scroll progress ---------- */
.scroll-line { position: fixed; left: 0; right: 0; top: 0; height: 2px; z-index: 150; pointer-events: none; }
.scroll-line span { display: block; height: 100%; background: linear-gradient(90deg, var(--brass-2), var(--brass-lt)); transform-origin: left; transform: scaleX(var(--sp, 0)); }

/* ---------- Cursor ---------- */
.cursor { position: fixed; left: 0; top: 0; z-index: 350; pointer-events: none; mix-blend-mode: normal; }
.cursor-dot, .cursor-ring { position: fixed; left: 0; top: 0; border-radius: 50%; pointer-events: none; will-change: transform; }
.cursor-dot { width: 6px; height: 6px; margin: -3px 0 0 -3px; background: var(--brass-2); }
.cursor-ring { width: 38px; height: 38px; margin: -19px 0 0 -19px; border: 1px solid rgba(83, 104, 75, .55);
  display: grid; place-items: center; transition: width .35s var(--ease), height .35s var(--ease), margin .35s var(--ease), background .35s, border-color .35s; }
.cursor-ring b { font: 500 .5625rem/1 var(--mono); letter-spacing: .18em; text-transform: uppercase; color: var(--ink); opacity: 0; transition: opacity .25s; }
.cursor.is-link .cursor-ring { width: 54px; height: 54px; margin: -27px 0 0 -27px; border-color: var(--brass-2); background: rgba(141, 155, 117, .12); }
.cursor.has-label .cursor-ring { width: 78px; height: 78px; margin: -39px 0 0 -39px; background: var(--brass-lt); border-color: var(--brass-lt); }
.cursor.has-label .cursor-ring b { opacity: 1; }
.cursor.has-label .cursor-dot { opacity: 0; }
.cursor.on-dark .cursor-dot { background: var(--brass-lt); }
.cursor.on-dark .cursor-ring { border-color: rgba(209, 218, 189, .55); }
.cursor.is-down .cursor-ring { transform: scale(.85); }
.cursor.is-hidden { opacity: 0; }
@media (pointer: coarse), (hover: none) { .cursor { display: none; } }

/* ---------- Image reveals ---------- */
html.motion-ok [data-reveal-img] { overflow: hidden; }
html.motion-ok [data-reveal-img] > img, html.motion-ok [data-reveal-img] > video {
  clip-path: inset(100% 0 0 0); transform: scale(1.18);
  transition: clip-path 1.25s cubic-bezier(.77, 0, .175, 1), transform 1.6s cubic-bezier(.22, 1, .36, 1);
}
html.motion-ok [data-reveal-img].is-in > img, html.motion-ok [data-reveal-img].is-in > video { clip-path: inset(0 0 0 0); transform: scale(1); }
[data-parallax] { will-change: transform; }

/* ---------- Eyebrow rule draw ---------- */
html.motion-ok .eyebrow::before { transform: scaleX(0); transform-origin: left; transition: transform .9s var(--ease) .15s; }
html.motion-ok .eyebrow.is-drawn::before { transform: scaleX(1); }

/* ---------- Magnetic & tilt ---------- */
.btn, .nav-cta { will-change: transform; }
[data-tilt] { will-change: transform; transition: transform .5s var(--ease); }
[data-tilt] .tilt-glare { position: absolute; inset: 0; pointer-events: none; z-index: 3; opacity: 0; transition: opacity .4s;
  background: radial-gradient(circle at var(--gx, 50%) var(--gy, 50%), rgba(255, 255, 255, .28), transparent 55%); }
[data-tilt]:hover .tilt-glare { opacity: 1; }
.pf-card, .svc-card, .duo-card, .rel-card { position: relative; }

/* ---------- Kinetic type band ---------- */
.kinetic { overflow: hidden; padding: clamp(2.5rem, 6vw, 5rem) 0; background: var(--paper); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.kinetic-dark { background: var(--ink); border-color: var(--line-lt); }
.kinetic-row { display: flex; width: max-content; white-space: nowrap; will-change: transform; }
.kinetic-row + .kinetic-row { margin-top: .4rem; }
.kinetic-row span { font-family: var(--display); font-size: clamp(3rem, 9vw, 8.5rem); line-height: 1; letter-spacing: -.06em; padding: 0 .35em; color: var(--t-ink); }
.kinetic-row span.k-out { color: transparent; -webkit-text-stroke: 1px var(--t-ink); }
.kinetic-row span em { font-family: Georgia, serif; font-style: italic; color: var(--brass-2); }
.kinetic-row i { font-style: normal; align-self: center; font-size: clamp(1.2rem, 3vw, 2.6rem); color: var(--brass); }
.kinetic-dark .kinetic-row span { color: var(--p-light); }
.kinetic-dark .kinetic-row span.k-out { -webkit-text-stroke-color: rgba(239, 235, 226, .6); }
.kinetic-dark .kinetic-row span em { color: var(--brass-lt); }

/* ---------- Horizontal story (home) ---------- */
.hscroll { background: var(--ink); color: var(--p-light); position: relative; }
.hscroll-pin { height: 100svh; min-height: 620px; display: flex; flex-direction: column; justify-content: center; overflow: hidden; padding: 5.5rem 0 3rem; }
.hscroll-head { padding: 0 var(--pad); display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; margin-bottom: clamp(1.5rem, 4vh, 3rem); }
.hscroll-head h2 { font-size: clamp(2.4rem, 5vw, 4.8rem); margin-top: 1rem; }
.hscroll-head .eyebrow { color: var(--brass-lt); }
.hscroll-meter { width: min(22rem, 30vw); height: 2px; background: var(--line-lt); position: relative; flex: none; margin-bottom: 1rem; }
.hscroll-meter span { position: absolute; inset: 0; background: var(--brass-lt); transform-origin: left; transform: scaleX(var(--hp, 0)); }
.hscroll-track { display: flex; gap: clamp(1rem, 2vw, 1.75rem); padding: 0 var(--pad); width: max-content; will-change: transform; }
.hs-card { position: relative; width: clamp(19rem, 30vw, 27rem); min-height: clamp(23rem, 54vh, 31rem); flex: none; display: flex; flex-direction: column;
  padding: clamp(1.5rem, 2.5vw, 2.25rem); border: 1px solid var(--line-lt); background: linear-gradient(160deg, rgba(209, 218, 189, .07), rgba(209, 218, 189, 0) 60%); overflow: hidden; }
.hs-card::after { content: attr(data-n); position: absolute; right: -.08em; bottom: -.28em; font-family: var(--display); font-size: clamp(9rem, 16vw, 14rem); letter-spacing: -.08em; line-height: 1; color: rgba(209, 218, 189, .06); pointer-events: none; }
.hs-num { font-family: var(--mono); font-size: .75rem; letter-spacing: .2em; color: var(--brass-lt); }
.hs-icon { width: 4.5rem; height: 4.5rem; margin: 1.75rem 0 auto; color: var(--brass-lt); }
.hs-icon path, .hs-icon rect, .hs-icon circle, .hs-icon line, .hs-icon polyline { fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
html.motion-ok .hs-icon .draw { stroke-dasharray: var(--len, 300); stroke-dashoffset: var(--len, 300); transition: stroke-dashoffset 1.6s var(--ease); }
html.motion-ok .hs-card.is-on .hs-icon .draw { stroke-dashoffset: 0; }
.hs-card h3 { font-size: clamp(1.5rem, 2.2vw, 2rem); margin-top: 2rem; }
.hs-card p { margin-top: .75rem; color: var(--p-mid); font-weight: 300; font-size: .9375rem; }
.hs-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: 1.25rem; }
.hs-tags span { font-family: var(--mono); font-size: .5625rem; letter-spacing: .14em; text-transform: uppercase; color: var(--p-mid); border: 1px solid var(--line-lt); padding: .35rem .6rem; }
.hs-cta { justify-content: center; align-items: flex-start; background: var(--brass-lt); color: var(--ink); border-color: var(--brass-lt); transition: background .3s; }
.hs-cta strong { font-family: var(--display); font-weight: 400; font-size: clamp(2rem, 3vw, 2.8rem); letter-spacing: -.05em; line-height: 1.05; }
.hs-cta span { margin-top: 1.5rem; font-family: var(--mono); font-size: .6875rem; letter-spacing: .2em; text-transform: uppercase; }
.hs-cta:hover { background: #e1e7cf; }
.hs-cta::after { color: rgba(23, 36, 31, .07); }
@media (max-width: 900px) {
  .hscroll-pin { height: auto; min-height: 0; padding: var(--section) 0; }
  .hscroll-head { flex-direction: column; align-items: flex-start; }
  .hscroll-meter { display: none; }
  .hscroll-track { width: auto; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 1rem; scrollbar-width: none; }
  .hs-card { width: 82vw; min-height: 24rem; scroll-snap-align: start; }
}

/* ---------- Text decode ---------- */
[data-scramble] { font-variant-ligatures: none; }

/* ---------- Lightbox ---------- */
.lightbox { position: fixed; inset: 0; z-index: 380; background: rgba(10, 18, 14, .94); display: grid; grid-template-rows: 1fr auto; place-items: center; padding: 4.5rem clamp(1rem, 5vw, 4rem) 2rem;
  opacity: 0; visibility: hidden; transition: opacity .4s, visibility .4s; }
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox img { max-width: 100%; max-height: calc(100svh - 10rem); object-fit: contain; transform: scale(.96); transition: transform .5s var(--ease), opacity .3s; }
.lightbox.is-open img { transform: scale(1); }
.lightbox img.is-swap { opacity: 0; }
.lightbox p { color: var(--p-mid); font-family: var(--mono); font-size: .6875rem; letter-spacing: .16em; text-transform: uppercase; margin-top: 1.25rem; }
.lightbox button { position: absolute; background: none; border: 1px solid var(--line-lt); color: var(--p-light); width: 48px; height: 48px; border-radius: 50%; cursor: pointer; font-size: 1.1rem; transition: background .25s; }
.lightbox button:hover { background: rgba(209, 218, 189, .15); }
.lb-close { top: 1.25rem; right: 1.25rem; }
.lb-prev { left: 1.25rem; top: 50%; transform: translateY(-50%); }
.lb-next { right: 1.25rem; top: 50%; transform: translateY(-50%); }
.gal-item img { cursor: zoom-in; }

/* ---------- Ambient detail ---------- */
.pf-card .pf-media::after, .svc-media::after, .rel-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(115deg, transparent 40%, rgba(255, 255, 255, .22) 50%, transparent 60%); transform: translateX(-120%); transition: transform 1s var(--ease); pointer-events: none; }
.svc-media, .rel-media { position: relative; }
.pf-card:hover .pf-media::after, .svc-card:hover .svc-media::after, .rel-card:hover .rel-media::after { transform: translateX(120%); }

@media (prefers-reduced-motion: reduce) {
  .curtain, .cursor, .scroll-line { display: none !important; }
  [data-reveal-img] > img { clip-path: none !important; transform: none !important; }
  .kinetic-row { transform: none !important; }
}