/* ==========================================================================
   Keshav Gupta — Product Design Portfolio
   Layout: centred column inside wide side margins on a dark, grained ground.
   Drafting marks (registration, dimension lines, protractor dials) carry the
   technical voice. Cobalt for structure, signal orange for anything live.
   The footer closes the page as a light sheet.
   ========================================================================== */

:root {
  /* colour — dark ground */
  --paper: #0f1012;          /* page */
  --paper-2: #181a1e;        /* raised / placeholder fill */
  --paper-3: #262930;        /* placeholder construction lines */
  --ink: #ecebe6;            /* primary text */
  --ink-2: #a8aab1;
  --ink-3: #74777f;
  --rule: #2a2d33;
  --cobalt: #5b77ff;         /* lifted ultramarine for legibility on dark */
  --cobalt-deep: #1d3ad6;    /* the true cobalt, used as a field colour */
  --cobalt-soft: #93a4ff;
  --cobalt-wash: rgba(91, 119, 255, .12);
  --signal: #ff5a1f;
  --signal-wash: rgba(255, 90, 31, .12);
  --sheet: #ecebe6;          /* light sheet: footer, featured cards */
  --sheet-ink: #111214;

  /* type */
  --sans: "Geist", "Helvetica Neue", Arial, system-ui, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --t-hero: clamp(2.4rem, 6.2vw, 6.4rem);
  --t-display: clamp(2rem, 3.8vw, 3.8rem);
  --t-title: clamp(1.7rem, 2.8vw, 2.8rem);
  --t-title-s: clamp(1.35rem, 1.9vw, 1.9rem);
  --t-lead: clamp(1.05rem, 1.35vw, 1.3rem);
  --t-body: .975rem;
  --t-small: .875rem;
  --t-meta: .68rem;

  /* space */
  --s1: .25rem; --s2: .5rem; --s3: .75rem; --s4: 1rem; --s5: 1.5rem;
  --s6: 2rem; --s7: 3rem; --s8: clamp(4rem, 6.5vw, 6rem); --s9: clamp(5rem, 9vw, 8rem);
  --frame: 1240px;
  --pad: max(16px, 9vw);
  --colgap: clamp(12px, 1.8vw, 24px);
  --nav-h: 52px;

  /* lines & motion */
  --hair: 1px solid var(--rule);
  --ease: cubic-bezier(.2, .7, .1, 1);
  --dur: .9s;

  color-scheme: dark;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); background: var(--paper); }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--sans); font-size: var(--t-body); line-height: 1.6;
  overflow-x: clip; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
/* film grain over the whole page */
body::after {
  content: ""; position: fixed; inset: 0; z-index: 60; pointer-events: none; opacity: .14; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 1.2 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
::selection { background: var(--signal); color: #fff; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; border-radius: 2px; }
.skip { position: fixed; left: 12px; top: -60px; z-index: 100; background: var(--ink); color: var(--paper); padding: 8px 14px; font-size: var(--t-small); }
.skip:focus { top: 12px; }

.frame {
  max-width: var(--frame); margin-inline: auto;
  padding-left: max(var(--pad), env(safe-area-inset-left, 0px));
  padding-right: max(var(--pad), env(safe-area-inset-right, 0px));
}
.mono { font-family: var(--mono); font-size: var(--t-meta); letter-spacing: .06em; text-transform: uppercase; line-height: 1.5; }

/* ---------- nav ---------- */
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 41; background: var(--paper); }
.nav {
  position: fixed; z-index: 40; left: 0; right: 0; top: env(safe-area-inset-top, 0px);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent; transition: border-color .4s;
}
.nav.is-scrolled { border-bottom-color: var(--rule); }
.nav-in { display: flex; align-items: center; justify-content: space-between; gap: var(--s4); height: var(--nav-h); }
.nav-id { display: flex; align-items: baseline; gap: var(--s3); white-space: nowrap; }
.nav-id b { font-weight: 600; font-size: .9rem; letter-spacing: -.01em; }
.nav-id span { color: var(--ink-3); }
.nav-now { color: var(--ink-3); opacity: 0; transition: opacity .4s; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.nav-now.is-on { opacity: 1; }
.nav-now b { color: var(--signal); font-weight: 500; }
.nav-links { display: flex; gap: clamp(14px, 2vw, 28px); }
.nav-links a { position: relative; font-size: .84rem; color: var(--ink-2); padding-block: 4px; transition: color .25s; white-space: nowrap; }
.nav-links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--signal); transform: scaleX(0); transform-origin: left; transition: transform .45s var(--ease); }
.nav-links a:hover, .nav-links a[aria-current="true"] { color: var(--ink); }
.nav-links a:hover::after, .nav-links a[aria-current="true"]::after { transform: scaleX(1); }
.nav-links a[data-soon]::before {
  content: "Soon"; position: absolute; left: 50%; top: 100%; transform: translate(-50%, 4px); opacity: 0; pointer-events: none;
  font-family: var(--mono); font-size: .6rem; letter-spacing: .06em; text-transform: uppercase; color: var(--signal); transition: opacity .25s, transform .35s var(--ease);
}
.nav-links a[data-soon]:hover::before { opacity: 1; transform: translate(-50%, 8px); }

/* ---------- drift + pointer ---------- */
.drift { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
main { position: relative; z-index: 1; }

.pointer { display: none; position: fixed; left: 0; top: 0; z-index: 90; pointer-events: none; opacity: 0; transition: opacity .3s; }
.has-pointer .pointer { display: block; }
.has-pointer, .has-pointer * { cursor: none !important; }
.pointer.is-on { opacity: 1; }
.pointer > span { position: absolute; left: 0; top: 0; }
.pointer-dot { width: 6px; height: 6px; margin: -3px 0 0 -3px; border-radius: 50%; background: var(--signal); transform: translate3d(var(--x), var(--y), 0); transition: opacity .3s; }
.pointer-ring {
  width: 30px; height: 30px; margin: -15px 0 0 -15px; border-radius: 50%; border: 1px solid rgba(236, 235, 230, .55);
  transform: translate3d(var(--rx), var(--ry), 0) scale(var(--s, 1));
  transition: width .4s var(--ease), height .4s var(--ease), margin .4s var(--ease), background .3s, border-color .3s, opacity .3s;
}
.pointer-label { transform: translate3d(var(--rx), var(--ry), 0) translate(-50%, -50%); font-family: var(--mono); font-size: .62rem; letter-spacing: .08em; text-transform: uppercase; color: #fff; opacity: 0; transition: opacity .25s; white-space: nowrap; }
.pointer-xy { transform: translate3d(var(--x), var(--y), 0) translate(14px, 12px); color: var(--ink-3); font-size: .58rem; opacity: 0; transition: opacity .25s; white-space: nowrap; font-variant-numeric: tabular-nums; }
.pointer.is-link .pointer-ring { width: 46px; height: 46px; margin: -23px 0 0 -23px; background: rgba(236, 235, 230, .08); }
.pointer.is-label .pointer-ring { width: 74px; height: 74px; margin: -37px 0 0 -37px; background: var(--signal); border-color: var(--signal); }
.pointer.is-label .pointer-label { opacity: 1; }
.pointer.is-label .pointer-dot { opacity: 0; }
.pointer.is-probe .pointer-ring { width: 56px; height: 56px; margin: -28px 0 0 -28px; border-style: dashed; }
.pointer.is-probe .pointer-xy { opacity: 1; }
.pointer.is-down { --s: .78; }
/* on light surfaces (footer sheet, featured cards) */
.pointer.is-light .pointer-ring { border-color: rgba(17, 18, 20, .6); }
.pointer.is-light.is-link .pointer-ring { background: rgba(17, 18, 20, .06); }
.pointer.is-light .pointer-xy { color: #6f7178; }

/* ---------- shared bits ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; height: 34px; padding: 0 15px;
  border: 1px solid var(--ink); border-radius: 999px; background: transparent; cursor: pointer;
  font-size: .78rem; font-weight: 500; transition: background .25s, color .25s, border-color .25s;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn--ghost { border-color: var(--rule); color: var(--ink-2); }
.btn--ghost:hover { border-color: var(--ink); background: transparent; color: var(--ink); }

/* placeholder frame: swap .ph-box contents for an <img> when photography arrives */
.ph-box {
  position: relative; aspect-ratio: var(--ar, 4 / 3); max-width: 100%; overflow: hidden;
  background:
    linear-gradient(to top right, transparent calc(50% - .5px), var(--paper-3) 50%, transparent calc(50% + .5px)),
    linear-gradient(to bottom right, transparent calc(50% - .5px), var(--paper-3) 50%, transparent calc(50% + .5px)),
    var(--paper-2);
}
.ph-box > img { width: 100%; height: 100%; object-fit: cover; }
.ph-box::before, .ph-box::after { content: ""; position: absolute; width: 14px; height: 14px; border-color: var(--ink-3); border-style: solid; opacity: .7; }
.ph-box::before { left: 10px; top: 10px; border-width: 1px 0 0 1px; }
.ph-box::after { right: 10px; bottom: 10px; border-width: 0 1px 1px 0; }
.ph-tag { position: absolute; left: 12px; bottom: 10px; font-family: var(--mono); font-size: var(--t-meta); letter-spacing: .05em; text-transform: uppercase; color: var(--ink-3); background: var(--paper-2); max-width: calc(100% - 46px); padding: 2px 6px; transition: color .3s; }

[data-depth] { will-change: transform; }

/* reveal: elements start visible and only nudge into place */
.rv-pre { opacity: .35; transform: translateY(24px); }
.rv-in { opacity: 1; transform: none; transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease); }

/* ---------- hero ---------- */
/* the headline drifts up and dissolves as the hero scrolls away (no pinning) */
.hero-title, .hero-meta, .dim { will-change: transform, opacity; }
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding-block: calc(var(--nav-h) + 2rem) 4rem; overflow: hidden; }
.hero-in { width: 100%; }
.hero-grid { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-in { position: relative; }
.hero-meta { display: flex; flex-wrap: wrap; gap: var(--s2) var(--s6); color: var(--ink-3); margin-bottom: clamp(1.75rem, 5vh, 3rem); }
.hero-meta span:first-child { color: var(--ink); }
.hero-title { font-size: var(--t-hero); font-weight: 500; line-height: .98; letter-spacing: -.045em; max-width: 11.5em; text-wrap: balance; }
.hero-title .w { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .08em; margin-bottom: -.08em; }
.hero-title .w > span { display: inline-block; animation: rise .9s var(--ease) both; animation-delay: calc(var(--i) * 45ms + 80ms); }
.hero-title em { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -.02em; color: var(--signal); }
@keyframes rise { from { transform: translateY(105%); } }

.dim { position: relative; margin-top: clamp(1.25rem, 3.5vh, 2.25rem); width: min(100%, 30rem); height: 22px; color: var(--cobalt); }
.dim-line { position: absolute; left: 0; right: 0; top: 10px; height: 1px; background: currentColor; transform-origin: left; animation: draw 1s .55s var(--ease) both; }
.dim::before, .dim::after { content: ""; position: absolute; top: 4px; width: 1px; height: 13px; background: currentColor; animation: fade .3s .55s both; }
.dim::before { left: 0; }
.dim::after { right: 0; animation-delay: 1.4s; }
.dim-label { position: absolute; left: 50%; top: 0; transform: translateX(-50%); background: var(--paper); padding: 0 10px; font-family: var(--mono); font-size: var(--t-meta); letter-spacing: .06em; text-transform: uppercase; animation: fade .5s 1.2s both; white-space: nowrap; }
@keyframes draw { from { transform: scaleX(0); } }
@keyframes fade { from { opacity: 0; } }

.reg { position: absolute; width: 22px; height: 22px; pointer-events: none; }
.reg::before, .reg::after { content: ""; position: absolute; background: var(--ink-3); }
.reg::before { left: 50%; top: 0; bottom: 0; width: 1px; }
.reg::after { top: 50%; left: 0; right: 0; height: 1px; }
.reg--tl { left: calc(var(--pad) - 30px); top: calc(var(--nav-h) + 36px); }
.reg--br { right: calc(var(--pad) - 30px); bottom: 36px; }
.reg--br::before, .reg--br::after { background: var(--signal); }

/* ---------- about ---------- */
.about-scene { padding-block: var(--s7) var(--s8); }
.about-scene.is-scene { height: 230vh; padding-block: 0; }
.about-scene.is-scene .about-pin { position: sticky; top: var(--nav-h); height: calc(100vh - var(--nav-h)); }
.about-scene.is-scene .about-row {
  position: absolute; left: 50%; top: 50%; z-index: 3; width: max-content; max-width: calc(100% - 2 * var(--pad));
  transform: translate(-50%, calc(-50% + var(--ry, 0px)));
}
.about-row { display: grid; grid-template-columns: 150px minmax(0, 34rem); justify-content: center; gap: clamp(24px, 3vw, 44px); align-items: stretch; }
.portrait { position: relative; min-height: 100%; z-index: 3; perspective: 1000px; }
.portrait-card { position: absolute; inset: 0; transform-style: preserve-3d; will-change: transform; }
.portrait-face { position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden; overflow: hidden; }
.portrait-back {
  transform: rotateY(180deg); display: grid; place-content: center; text-align: center; padding: 12px;
  background: var(--cobalt-deep); color: #fff; border-radius: 14px;
  font-size: 1.05rem; font-weight: 600; letter-spacing: -.015em; line-height: 1.15;
  box-shadow: 0 0 0 1px rgba(255,255,255,.18), 0 20px 50px -20px rgba(29, 58, 214, .8);
}
.portrait-back::after { content: ""; position: absolute; left: 50%; bottom: 14px; width: 6px; height: 6px; margin-left: -3px; border-radius: 50%; background: var(--signal); }
.portrait-front { background: var(--paper-2); }
.portrait-front img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(.2) contrast(1.04); }
.portrait-missing { display: none; position: absolute; inset: 0; place-content: center; text-align: center; color: var(--ink-3);
  background:
    linear-gradient(var(--paper-3), var(--paper-3)) center / 1px 100% no-repeat,
    linear-gradient(var(--paper-3), var(--paper-3)) center / 100% 1px no-repeat,
    var(--paper-2); }
.portrait-missing span { background: var(--paper-2); padding: 2px 6px; }
.portrait.is-missing .portrait-missing { display: grid; }
.portrait.is-missing img { display: none; }
.portrait::after { content: ""; position: absolute; right: -8px; bottom: -8px; width: 16px; height: 16px; border-right: 1px solid var(--signal); border-bottom: 1px solid var(--signal); opacity: var(--tick, 1); }
.about-text { align-self: center; display: grid; gap: var(--s4); padding-block: var(--s2); will-change: transform, opacity; }
.hello { font-size: var(--t-title); font-weight: 500; letter-spacing: -.035em; line-height: 1.05; }
.hello span { color: var(--cobalt); position: relative; white-space: nowrap; }
.hello span::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -.08em; height: .1em; border-radius: 1em;
  background: var(--signal); transform-origin: left; transform: scaleX(0); transition: transform 1s .3s var(--ease);
}
.about-text .hello span::after { transform: scaleX(var(--ul, 1)); transition: none; }
.about-lead { font-size: var(--t-lead); line-height: 1.45; letter-spacing: -.01em; color: var(--ink-2); max-width: 30em; text-wrap: pretty; }

/* ---------- keyword fields ---------- */
.field { position: relative; touch-action: pan-y; user-select: none; -webkit-user-select: none; }
.field canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.field--practice { width: 100%; max-width: 780px; height: min(400px, 46vh); margin: var(--s6) auto 0; }
.about-scene.is-scene .field--practice {
  position: absolute; left: 50%; top: 27%; bottom: 3%; height: auto; width: min(820px, calc(100% - 2 * var(--pad)));
  margin: 0; transform: translateX(-50%);
}
.field-hub--practice { background: var(--cobalt-deep); color: #fff; border-color: var(--cobalt-deep); }
.about-scene.is-scene .field-hub--practice { visibility: hidden; }
.field[data-layout="hub"] .field-words li { opacity: var(--o, 1); }
.field-words li {
  position: absolute; left: 0; top: 0; white-space: nowrap; cursor: default;
  font-size: .86rem; font-weight: 500; letter-spacing: -.005em; color: var(--ink);
  padding: 4px 0 4px 14px; line-height: 1.3; transition: color .3s; will-change: transform;
}
.field-words li::before { content: ""; position: absolute; left: 0; top: 12px; width: 7px; height: 7px; margin-top: -3.5px; border: 1px solid currentColor; border-radius: 50%; background: var(--paper); transition: background .3s, border-color .3s; }
.field-words li.flip { padding: 4px 14px 4px 0; text-align: right; }
.field-words li.flip::before { left: auto; right: 0; }
.field-words li.is-near { color: var(--signal); }
.field-words li.is-near::before { background: var(--signal); }
.field-words li small { display: block; font-family: var(--mono); font-size: .62rem; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); font-weight: 400; }
.field-words.is-static li { position: static; display: inline-block; margin: 0 18px 10px 0; }

/* tools: hub graph on a cobalt band */
.tools { padding-block: var(--s8); }
.tools--band { background: var(--cobalt-deep); color: #fff; position: relative; overflow: hidden; }
.tools--band::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .14;
  background:
    linear-gradient(rgba(255,255,255,.5) 1px, transparent 1px) 0 0 / 48px 48px,
    linear-gradient(90deg, rgba(255,255,255,.5) 1px, transparent 1px) 0 0 / 48px 48px;
}
.field--tools { max-width: 860px; height: clamp(360px, 32vw, 430px); margin-inline: auto; }
.field-hub {
  position: absolute; left: 0; top: 0; z-index: 1; white-space: nowrap; will-change: transform;
  font-size: 1.05rem; font-weight: 600; letter-spacing: -.015em; padding: 7px 14px; border-radius: 999px; border: 1px solid;
}
.tools--band .field-hub { background: #fff; color: var(--cobalt-deep); border-color: #fff; }
.tools--band .field-words li { color: #fff; }
.tools--band .field-words li::before { background: var(--cobalt-deep); }
.tools--band .field-words li small { color: rgba(255, 255, 255, .62); }
.tools--band .field-words li.is-near { color: #fff; }
.tools--band .field-words li.is-near::before { background: var(--signal); border-color: var(--signal); }

/* ---------- work: filter bar + stacking cards, centred ---------- */
.work { padding-block: var(--s7) var(--s6); }
.work .frame { display: flex; flex-direction: column; align-items: center; }
.work-title { font-size: var(--t-display); font-weight: 500; letter-spacing: -.04em; line-height: .98; margin-bottom: var(--s5); text-align: center; }
.filters { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px; max-width: 100%; padding: 4px; margin-bottom: var(--s7); border: var(--hair); border-radius: 999px; background: var(--paper); }
.filters button { border: 0; background: transparent; border-radius: 999px; padding: 8px 16px; cursor: pointer; font-size: .8rem; color: var(--ink-2); white-space: nowrap; transition: background .3s, color .3s; }
.filters button:hover { color: var(--ink); background: var(--paper-2); }
.filters button[aria-pressed="true"] { background: var(--cobalt-deep); color: #fff; }

.stack { display: grid; gap: var(--s5); padding-bottom: 6vh; width: 100%; max-width: 980px; }
.card { position: sticky; top: calc(var(--nav-h) + 20px); }
.card[hidden] { display: none; }
.card-in {
  --card-bg: #15171a;
  position: relative; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(20px, 2.6vw, 40px);
  min-height: min(56vh, 440px); padding: clamp(18px, 2vw, 26px);
  background: var(--card-bg); border: var(--hair); border-radius: 20px; overflow: hidden;
  box-shadow: 0 -24px 50px -30px rgba(0, 0, 0, .8);
  transform-origin: 50% 0; transform: scale(calc(1 - var(--p, 0) * .05)); filter: brightness(calc(1 - var(--p, 0) * .3));
  transition: border-color .35s;
}
.card:hover .card-in, .card:focus-within .card-in { border-color: var(--cobalt); }
.card-text { display: flex; flex-direction: column; gap: var(--s4); min-width: 0; padding-block: var(--s2); }
.card-meta { display: flex; flex-wrap: wrap; gap: 4px var(--s3); color: var(--cobalt); }
.card-meta .no { color: var(--signal); }
.card-title { font-size: var(--t-title-s); font-weight: 500; letter-spacing: -.03em; line-height: 1.05; text-wrap: balance; }
.card-desc { color: var(--ink-2); font-size: var(--t-small); max-width: 30em; text-wrap: pretty; }
.card-tags { margin-top: auto; display: flex; flex-wrap: wrap; gap: 6px 16px; color: var(--cobalt-soft); }
.card-tags li { display: inline-flex; align-items: center; gap: 8px; }
.card-tags li::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.card-media { position: relative; min-width: 0; }
.card-media .ph-box { aspect-ratio: auto; height: 100%; min-height: 260px; border-radius: 12px; }
.card:hover .ph-tag { color: var(--signal); }
.card-go {
  position: absolute; z-index: 2; right: clamp(26px, 2.8vw, 40px); top: clamp(26px, 2.8vw, 40px);
  display: inline-flex; align-items: center; height: 36px; min-width: 36px; padding: 0 12px; gap: 0;
  border-radius: 999px; border: var(--hair); background: var(--paper); color: var(--ink); font-size: .74rem;
  transition: background .3s, color .3s, border-color .3s, gap .45s var(--ease);
}
.card-go .soon { max-width: 0; overflow: hidden; white-space: nowrap; opacity: 0; transition: max-width .5s var(--ease), opacity .3s; }
.card-go .ar { display: inline-block; transition: transform .45s var(--ease); }
.card:hover .card-go, .card-go:focus-visible { background: var(--signal); border-color: var(--signal); color: #fff; gap: 8px; }
.card:hover .card-go .soon, .card-go:focus-visible .soon { max-width: 11em; opacity: 1; }
.card:hover .card-go .ar { transform: rotate(45deg); }
/* featured projects: same composition on a light sheet */
.card--dark .card-in { --card-bg: var(--sheet); --paper-2: #dcdcd6; --paper-3: #c9c9c2; --ink-3: #6f7178; color: var(--sheet-ink); border-color: var(--sheet); }
.card--dark .card-meta { color: var(--cobalt-deep); }
.card--dark .card-tags { color: var(--cobalt-deep); }
.card--dark .card-desc { color: #4c4e55; }
.card--dark .card-go { background: #fff; border-color: #d2d2cc; color: var(--sheet-ink); }
.card--dark:hover .card-in { border-color: var(--signal); }

/* ---------- form tool ---------- */
.form-tool { padding-block: var(--s8); }
.ft { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(24px, 3vw, 44px); max-width: 1000px; margin-inline: auto; align-items: stretch; }
.ft-stage { position: relative; aspect-ratio: 1 / 1; max-width: 100%; border: var(--hair); border-radius: 16px; background: radial-gradient(120% 90% at 50% 40%, #16181c, #0c0d0f); overflow: hidden; touch-action: pan-y; }
.ft-stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.ft-corner { position: absolute; width: 12px; height: 12px; border-color: var(--ink-3); border-style: solid; pointer-events: none; }
.ft-corner.tl { left: 10px; top: 10px; border-width: 1px 0 0 1px; }
.ft-corner.tr { right: 10px; top: 10px; border-width: 1px 1px 0 0; }
.ft-corner.bl { left: 10px; bottom: 10px; border-width: 0 0 1px 1px; }
.ft-corner.br { right: 10px; bottom: 10px; border-width: 0 1px 1px 0; }
.ft-dims { position: absolute; left: 16px; bottom: 14px; color: var(--ink-3); font-variant-numeric: tabular-nums; }

.ft-panel { display: flex; flex-direction: column; justify-content: center; gap: var(--s5); min-width: 0; padding-block: var(--s2); }
.ft-head h2 { font-size: var(--t-title); font-weight: 500; letter-spacing: -.035em; line-height: 1; margin-bottom: var(--s3); }
.ft-head p { color: var(--ink-2); font-size: var(--t-small); }
.ft-shapes { display: flex; gap: 6px; }
.ft-shapes button {
  width: 44px; height: 44px; display: grid; place-items: center; cursor: pointer;
  border: var(--hair); border-radius: 10px; background: var(--paper-2); transition: border-color .25s, background .25s;
}
.ft-shapes svg { width: 22px; height: 22px; fill: none; stroke: var(--ink-2); stroke-width: 1.4; stroke-linejoin: round; transition: stroke .25s; }
.ft-shapes button:hover svg { stroke: var(--ink); }
.ft-shapes button[aria-pressed="true"] { border-color: var(--signal); background: var(--signal-wash); }
.ft-shapes button[aria-pressed="true"] svg { stroke: var(--signal); }
.ft-params { display: grid; gap: 10px; border-top: var(--hair); padding-top: var(--s4); }
.ft-param { display: grid; grid-template-columns: 5.5em minmax(0, 1fr) 2.6em; align-items: center; gap: var(--s3); font-size: .8rem; color: var(--ink-2); }
.ft-param output { font-family: var(--mono); font-size: .7rem; color: var(--ink); text-align: right; font-variant-numeric: tabular-nums; }
.ft-param input { -webkit-appearance: none; appearance: none; width: 100%; height: 18px; background: transparent; }
.ft-param input::-webkit-slider-runnable-track { height: 1px; background: var(--rule); }
.ft-param input::-moz-range-track { height: 1px; background: var(--rule); }
.ft-param input::-webkit-slider-thumb { -webkit-appearance: none; width: 12px; height: 12px; margin-top: -5.5px; border-radius: 50%; background: var(--paper); border: 1.5px solid var(--signal); transition: transform .2s; }
.ft-param input::-moz-range-thumb { width: 10px; height: 10px; border-radius: 50%; background: var(--paper); border: 1.5px solid var(--signal); }
.ft-param input:hover::-webkit-slider-thumb { transform: scale(1.25); }
.ft-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding-top: var(--s4); border-top: var(--hair); }
.ft-more { margin-left: auto; display: inline-flex; align-items: center; gap: 8px; font-size: .84rem; color: var(--ink); padding-bottom: 2px; border-bottom: 1px solid var(--signal); transition: color .25s; }
.ft-more .ar { display: inline-block; transition: transform .4s var(--ease); }
.ft-more:hover { color: var(--signal); }
.ft-more:hover .ar { transform: translateX(4px); }

/* ---------- closing: a light sheet at the end of the dark page ---------- */
.closing { position: relative; z-index: 2; color: var(--ink); border-top: var(--hair); }
.closing-top { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 80px); padding-top: var(--s8); align-items: end; }
.closing .frame { max-width: 1060px; }
.closing-line { font-size: var(--t-title); font-weight: 500; letter-spacing: -.035em; line-height: 1.08; max-width: 13em; text-wrap: balance; }
.closing-line em { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -.015em; color: var(--signal); }
.invite { margin-top: var(--s4); color: var(--ink-2); font-size: var(--t-small); max-width: 26em; }
.contact-links { border-top: 1px solid var(--ink); }
.contact-links a {
  display: grid; grid-template-columns: 2.5em minmax(0, 1fr) auto; align-items: center; gap: var(--s3);
  padding-block: 16px; border-bottom: var(--hair); font-size: clamp(1.1rem, 1.6vw, 1.45rem); font-weight: 500; letter-spacing: -.02em;
  transition: color .25s, padding .45s var(--ease);
}
.contact-links .mono { color: var(--ink-3); }
.contact-links .ar { display: inline-block; font-size: .8em; transition: transform .45s var(--ease); }
.contact-links a:hover { color: var(--signal); padding-left: 8px; }
.contact-links a:hover .ar { transform: translate(3px, -3px) rotate(0deg); }
.contact-links a.is-pending { color: var(--ink-3); }
.footbar { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: var(--s4); margin-top: var(--s7); padding-block: var(--s4) calc(var(--s4) + env(safe-area-inset-bottom, 0px)); border-top: var(--hair); color: var(--ink-3); }
.to-top { display: inline-flex; align-items: center; gap: 8px; transition: color .25s; }
.to-top .ar { display: inline-block; transition: transform .45s var(--ease); }
.to-top:hover { color: var(--signal); }
.to-top:hover .ar { transform: translateY(-4px); }

/* ---------- smaller screens (kept light; full mobile pass later) ---------- */
@media (max-width: 1000px) {
  .nav-now { display: none; }
  .ft { grid-template-columns: minmax(0, 1fr); }
  .closing-top { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 760px) {
  :root { --t-meta: .66rem; --pad: max(16px, 5vw); }
  .nav-id span { display: none; }
  .nav-links { gap: 10px; }
  .about-row { grid-template-columns: 110px minmax(0, 1fr); }
  .card-in { grid-template-columns: minmax(0, 1fr); min-height: 0; padding: 12px 12px 18px; }
  .card-media { order: -1; }
  .card-media .ph-box { height: auto; min-height: 0; aspect-ratio: 16 / 10; }
  .filters { flex-wrap: nowrap; overflow-x: auto; justify-content: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
  .rv-pre { opacity: 1; transform: none; }
}

/* ---------- passcode screen ---------- */
.gate { display: none; }
.locked .gate {
  display: grid; place-items: center; position: fixed; inset: 0; z-index: 80; background: #000; color: var(--ink);
  padding: max(16px, env(safe-area-inset-top, 0px)) max(16px, env(safe-area-inset-right, 0px)) max(16px, env(safe-area-inset-bottom, 0px)) max(16px, env(safe-area-inset-left, 0px));
}
.locked body { overflow: hidden; }
.gate.is-leaving { pointer-events: none; animation: gate-out .9s .25s var(--ease) forwards; }
.gate.is-leaving .gate-form, .gate.is-leaving .gate-foot { animation: gate-fade .35s var(--ease) forwards; }
@keyframes gate-out { to { clip-path: inset(0 0 100% 0); } }
@keyframes gate-fade { to { opacity: 0; transform: translateY(-10px); } }

.gate-form { display: grid; gap: 14px; width: min(320px, 100%); animation: gate-in .8s .1s var(--ease) both; }
@keyframes gate-in { from { opacity: 0; transform: translateY(12px); } }
.gate-label { color: var(--ink-3); }
.gate-field { display: flex; align-items: center; gap: 12px; border-bottom: 1px solid #34373e; padding-bottom: 8px; transition: border-color .3s; }
.gate-field:focus-within { border-color: var(--ink); }
.gate-field input {
  flex: 1; min-width: 0; background: transparent; border: 0; outline: 0; color: var(--ink);
  font-family: var(--mono); font-size: 1.5rem; letter-spacing: .5em; caret-color: var(--signal); padding: 4px 0;
}
.gate-go {
  flex: none; width: 44px; height: 44px; border-radius: 50%; border: 1px solid #34373e; background: transparent;
  display: grid; place-items: center; cursor: pointer; transition: background .25s, border-color .25s, transform .35s var(--ease);
}
.gate-go svg { width: 18px; height: 18px; fill: none; stroke: var(--ink); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; transition: stroke .25s, transform .35s var(--ease); }
.gate-go:hover, .gate-go:focus-visible { background: var(--signal); border-color: var(--signal); }
.gate-go:hover svg { stroke: #fff; transform: translateX(2px); }
.gate-msg { min-height: 1.5em; color: var(--signal); }
.gate-form.is-wrong { animation: gate-shake .42s var(--ease); }
@keyframes gate-shake { 20% { transform: translateX(-8px); } 40% { transform: translateX(7px); } 60% { transform: translateX(-4px); } 80% { transform: translateX(2px); } }
.gate-foot { position: absolute; left: 0; right: 0; bottom: max(28px, env(safe-area-inset-bottom, 0px)); text-align: center; color: #4a4d55; }
.gate-mark { position: absolute; width: 18px; height: 18px; pointer-events: none; }
.gate-mark::before, .gate-mark::after { content: ""; position: absolute; background: #3a3d44; }
.gate-mark::before { left: 50%; top: 0; bottom: 0; width: 1px; }
.gate-mark::after { top: 50%; left: 0; right: 0; height: 1px; }
.gate-mark--tl { left: 32px; top: 32px; }
.gate-mark--br { right: 32px; bottom: 32px; }
.gate-mark--br::before, .gate-mark--br::after { background: var(--signal); }

/* hold the hero intro until the page is revealed */
.locked .hero-title .w > span, .locked .dim-line, .locked .dim::before, .locked .dim::after, .locked .dim-label { animation-play-state: paused; }