/* ============================================================
   Arty - Creativity. Not imitation.
   Design system. Native CSS.
   Voice: Spectral (serif, creativity) + IBM Plex Mono (engine)
          + Space Grotesk (structure).
   Scene: a studio at night. Charcoal walls, warm cream light
          on sheet music. Gold is rationed.
   ============================================================ */

:root {
  /* --- ink (dark, default) --- */
  --ink:        #1b1a1d;   /* warm near-black, the room */
  --ink-raised: #232127;   /* lifted surface */
  --ink-sunken: #161518;   /* recessed */
  --line:       #322f37;   /* hairline on dark */
  --line-soft:  #2a2830;

  /* --- paper (cream) --- */
  --paper:      #f4f1e8;   /* primary light, the lamp on the page */
  --paper-2:    #e9e5d7;   /* light-section surface */
  --paper-line: #d8d2c0;   /* hairline on cream */

  /* --- text --- */
  --on-ink:        #f4f1e8;
  --on-ink-muted:  #aaa495;
  --on-ink-faint:  #6d6859;
  --on-paper:      #232024;
  --on-paper-muted:#615b4d;

  /* --- accent: muted sand-gold, used sparingly --- */
  --accent:      #c8ab74;
  --accent-deep: #a8854b;  /* for text on cream (contrast) */

  /* --- type --- */
  --serif:  "Spectral", Georgia, "Times New Roman", serif;
  --sans:   "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --mono:   "IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;

  /* --- motion --- */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);

  /* --- structure --- */
  --maxw: 1240px;
  --gutter: clamp(1.25rem, 5vw, 5rem);
  --radius: 14px;
  --radius-sm: 10px;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--ink);
  color: var(--on-ink);
  font-family: var(--serif);
  font-size: clamp(1.0625rem, 0.98rem + 0.4vw, 1.1875rem);
  line-height: 1.62;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--accent); color: var(--ink); }

/* ---------- type primitives ---------- */
h1, h2, h3, h4 {
  font-family: var(--sans);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.03em;
  text-wrap: balance;
}
p { text-wrap: pretty; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
.lede { font-size: clamp(1.25rem, 1.05rem + 0.9vw, 1.7rem); line-height: 1.45; }

/* ---------- layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
section { position: relative; }
.section-pad { padding-block: clamp(5rem, 11vw, 9.5rem); }

.band-paper { background: var(--paper); color: var(--on-paper); }
.band-paper .eyebrow { color: var(--accent-deep); }
.band-paper a.link { color: var(--accent-deep); }
.band-sunken { background: var(--ink-sunken); }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  height: 72px; display: flex; align-items: center;
  background: color-mix(in oklab, var(--ink) 78%, transparent);
  backdrop-filter: blur(12px) saturate(1.1);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease-soft), background 0.3s var(--ease-soft);
}
.nav.is-scrolled { border-bottom-color: var(--line); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; }
.brand img { width: 26px; height: 26px; }
.brand b {
  font-family: var(--sans); font-weight: 600; font-size: 1.18rem;
  letter-spacing: -0.02em; color: var(--on-ink);
}
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a.navlink {
  font-family: var(--sans); font-size: 0.95rem; font-weight: 500;
  color: var(--on-ink-muted); transition: color 0.2s var(--ease-soft);
}
.nav-links a.navlink:hover { color: var(--on-ink); }
@media (max-width: 720px) { .nav-links a.navlink { display: none; } }

/* ---------- buttons ---------- */
.btn {
  font-family: var(--sans); font-weight: 600; font-size: 0.97rem;
  letter-spacing: -0.01em;
  display: inline-flex; align-items: center; justify-content: center; gap: 0.55rem;
  padding: 0.78rem 1.4rem; border-radius: 100px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform 0.18s var(--ease-out), background 0.2s var(--ease-soft),
              border-color 0.2s var(--ease-soft), color 0.2s var(--ease-soft);
  will-change: transform;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--paper); color: var(--ink); }
.btn-primary:hover { background: #fff; }
.btn-ghost { background: transparent; color: var(--on-ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--on-ink-muted); background: color-mix(in oklab, var(--paper) 6%, transparent); }
.band-paper .btn-primary { background: var(--ink); color: var(--paper); }
.band-paper .btn-primary:hover { background: #000; }
.band-paper .btn-ghost { color: var(--on-paper); border-color: var(--paper-line); }
.band-paper .btn-ghost:hover { border-color: var(--on-paper-muted); background: color-mix(in oklab, var(--ink) 5%, transparent); }
.btn .arr { transition: transform 0.2s var(--ease-out); }
.btn:hover .arr { transform: translateX(3px); }

:where(a, button):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 8px;
}

/* ============================================================
   Opening: 3D cube + black-and-white to colour reveal
   --reveal goes 0 (top, monochrome) to 1 (open, full colour),
   driven by cube.js from scroll position.
   ============================================================ */
:root { --reveal: 0; }
#page { filter: grayscale(calc(1 - var(--reveal, 1))); }

.intro { position: relative; height: 220vh; }
.stage {
  position: sticky; top: 0; height: 100dvh;
  display: flex; align-items: center; overflow: hidden;
}
.stage .wrap {
  width: 100%; max-width: 1360px; display: grid;
  grid-template-columns: 0.95fr 1.05fr; gap: clamp(1.5rem, 3vw, 3rem); align-items: center;
}
.cube-holder { position: relative; width: 100%; height: min(86vh, 900px); }
#cube-canvas { display: block; width: 100%; height: 100%; }
.cube-holder .hero-glow {
  opacity: var(--reveal, 0);
  transition: opacity 0.2s linear;
}
.cube-fallback {
  display: none; position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%); width: min(72%, 330px);
  filter: drop-shadow(0 30px 60px rgba(0,0,0,0.45));
}
.cube-holder.is-fallback #cube-canvas { display: none; }
.cube-holder.is-fallback .cube-fallback { display: block; }

/* fallback / reduced motion: no pinned scroll, static colour */
.no-cube .intro { height: auto; }
.no-cube .stage { position: static; height: auto; min-height: 100dvh; }
@media (prefers-reduced-motion: reduce) {
  .intro { height: auto; }
  .stage { position: static; height: auto; min-height: 100dvh; }
  #page { filter: none; }
}

@media (max-width: 880px) {
  .intro { height: 190vh; }
  .stage .wrap { grid-template-columns: 1fr; gap: 1rem; align-content: center; }
  .cube-holder { order: -1; aspect-ratio: auto; height: 34dvh; }
  .cube-fallback { width: min(46%, 190px); }
}

/* ---------- hero ---------- */
.hero { min-height: 100dvh; display: flex; align-items: center; padding-top: 72px; }
.hero .wrap { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.hero-slogan {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(3rem, 1.4rem + 6.2vw, 5.6rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
}
.hero-slogan .not { color: var(--on-ink-faint); font-style: italic; font-weight: 400; }
.hero-slogan.stack {
  /* two-line title in the hard grotesk: the brand, then the claim */
  font-family: var(--sans);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.04;
}
.hero-slogan.stack .brand {
  display: block;
  font-size: clamp(3.4rem, 2rem + 4.6vw, 6rem);
}
.hero-slogan.stack .tag {
  display: block;
  margin-top: 0.55rem;
  font-size: clamp(1.5rem, 1rem + 1.6vw, 2.3rem);
  white-space: nowrap;
}
.hero-slogan.stack .not { font-style: normal; font-weight: 600; }
@media (max-width: 880px) {
  .hero-slogan.stack .tag { white-space: normal; }
}
.hero-sub { margin-top: 1.6rem; max-width: 44ch; color: var(--on-ink-muted); }
.hero-sub strong { color: var(--on-ink); font-weight: 500; }
.spec {
  margin-top: 1.8rem; display: flex; flex-wrap: wrap; gap: 0.55rem 1rem;
  font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.02em;
  color: var(--accent);
}
.spec span { display: inline-flex; align-items: center; gap: 0.5rem; }
.spec span::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.hero-cta { margin-top: 2.4rem; display: flex; flex-wrap: wrap; gap: 0.85rem; }
.daw-row {
  margin-top: 1.6rem; display: flex; flex-wrap: wrap; align-items: center;
  gap: 0.5rem 0.6rem; font-family: var(--mono); font-size: 0.76rem;
  letter-spacing: 0.02em;
}
.daw-label { color: var(--on-ink-faint); margin-right: 0.2rem; }
.daw-badge {
  padding: 0.32rem 0.7rem; border: 1px solid var(--on-ink-faint);
  border-radius: 999px; color: var(--on-ink-muted); white-space: nowrap;
}
.daw-badge.soon { border-style: dashed; color: var(--on-ink-faint); }

.hero-art { position: relative; display: grid; place-items: center; }
.hero-art img { width: min(78%, 360px); filter: drop-shadow(0 30px 60px rgba(0,0,0,0.45)); }
.hero-glow {
  position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(ellipse 60% 55% at 60% 45%, color-mix(in oklab, var(--accent) 18%, transparent), transparent 70%);
  filter: blur(10px);
}
@media (max-width: 880px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .hero-art img { width: 180px; }
  .hero-sub, .hero-slogan { max-width: none; }
}

/* ---------- generic section header ---------- */
.sec-head { max-width: 56ch; }
.sec-head h2 { font-size: clamp(1.9rem, 1.3rem + 2.6vw, 3.25rem); margin-top: 0.9rem; }
.sec-head .lede { margin-top: 1.1rem; color: var(--on-ink-muted); }
.band-paper .sec-head .lede { color: var(--on-paper-muted); }

/* ---------- manifesto teaser / pull quote ---------- */
.pull {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(1.6rem, 1.1rem + 2.4vw, 3rem);
  line-height: 1.22; letter-spacing: -0.02em; max-width: 22ch;
}
.pull em { font-style: italic; color: var(--accent); }
.pull-foot { margin-top: 2rem; display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; }
.link {
  font-family: var(--sans); font-weight: 600; font-size: 0.97rem;
  display: inline-flex; align-items: center; gap: 0.5rem; color: var(--on-ink);
  border-bottom: 1px solid var(--line); padding-bottom: 2px;
  transition: border-color 0.2s var(--ease-soft), color 0.2s;
}
.link:hover { border-color: var(--accent); }
.link .arr { transition: transform 0.2s var(--ease-out); }
.link:hover .arr { transform: translateX(3px); }

/* ---------- problem ---------- */
.problem-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(2rem, 6vw, 6rem); align-items: start; }
.problem-grid .big { font-family: var(--serif); font-size: clamp(1.5rem, 1rem + 2.4vw, 2.6rem); line-height: 1.22; letter-spacing: -0.02em; }
.problem-grid .big .q { color: var(--accent); }
.problem-body p + p { margin-top: 1.1rem; color: var(--on-ink-muted); }
@media (max-width: 820px) { .problem-grid { grid-template-columns: 1fr; } }

/* ---------- capabilities (zigzag) ---------- */
.caps { display: grid; gap: clamp(2.5rem, 5vw, 4.5rem); margin-top: clamp(3rem, 6vw, 5rem); }
.cap {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
}
.cap:nth-child(even) .cap-text { order: 2; }
.cap-index { font-family: var(--mono); font-size: 0.8rem; color: var(--accent); letter-spacing: 0.1em; }
.cap-text h3 { font-size: clamp(1.4rem, 1rem + 1.5vw, 2rem); margin-top: 0.7rem; }
.cap-text p { margin-top: 0.85rem; color: var(--on-ink-muted); max-width: 42ch; }
.cap-text .meta { margin-top: 1.1rem; font-family: var(--mono); font-size: 0.78rem; color: var(--on-ink-faint); letter-spacing: 0.03em; }
.cap-text .cap-claim {
  margin-top: 1.2rem;
  font-family: var(--serif);
  font-size: clamp(1.15rem, 0.95rem + 0.9vw, 1.5rem);
  line-height: 1.4;
  color: var(--on-ink);
}
.cap-text .cap-claim strong { font-weight: 600; color: var(--accent); }

/* ---------- powers grid (what it can do) ---------- */
.powers {
  margin-top: 2.6rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}
.power {
  padding: 1.5rem 1.5rem 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.25s ease, border-color 0.25s ease;
  display: flex; flex-direction: column;
}
.power[data-video] { cursor: pointer; }
.power:hover { transform: translateY(-4px); border-color: var(--accent); }
.power .p-top { display: flex; align-items: center; justify-content: space-between; }
.power .p-top svg { width: 26px; height: 26px; color: var(--accent); }
.power .pn { font-family: var(--mono); font-size: 0.74rem; color: var(--on-ink-faint); letter-spacing: 0.06em; }
.power h4 { font-size: 1.18rem; margin-top: 0.9rem; }
.power p { margin-top: 0.55rem; font-size: 0.98rem; line-height: 1.55; color: var(--on-ink-muted); }
.power .p-watch {
  margin-top: auto; padding-top: 0.9rem;
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.04em;
  color: var(--on-ink-faint); transition: color 0.2s ease;
}
.power .p-watch::after { content: " ↓"; }
.power:hover .p-watch { color: var(--accent); }
.powers-foot {
  margin-top: 2.4rem;
  padding: 1.6rem 1.8rem;
  border-left: 3px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, transparent);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.powers-foot .pf-big { font-size: clamp(1.25rem, 1rem + 1.1vw, 1.7rem); font-family: var(--serif); }
.powers-foot .pf-big strong { font-weight: 600; }
.powers-foot .pf-sub { margin-top: 0.6rem; color: var(--on-ink-muted); max-width: 72ch; }
.cap-visual {
  aspect-ratio: 4 / 3; border-radius: var(--radius);
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 120% at 30% 20%, var(--ink-raised), var(--ink-sunken));
  display: grid; place-items: center; overflow: hidden; position: relative;
}
.cap-visual svg { width: 46%; height: auto; color: var(--accent); opacity: 0.92; }
@media (max-width: 760px) {
  .cap { grid-template-columns: 1fr; }
  .cap:nth-child(even) .cap-text { order: 0; }
  .cap-visual { order: -1; }
}

/* ---------- how it works (numbered, real sequence) ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: clamp(2.5rem, 5vw, 4rem); }
.step { padding: clamp(1.5rem, 3vw, 2.5rem) clamp(1.25rem, 3vw, 2.2rem); border-left: 1px solid var(--line); }
.step:first-child { border-left: 0; padding-left: 0; }
.step .n { font-family: var(--mono); font-size: 0.85rem; color: var(--accent); }
.step h3 { font-size: clamp(1.2rem, 0.9rem + 1vw, 1.6rem); margin-top: 1.4rem; }
.step p { margin-top: 0.7rem; color: var(--on-ink-muted); font-size: 0.98rem; }
.step .said { font-family: var(--mono); font-size: 0.86rem; color: var(--on-ink); background: var(--ink-raised); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 0.7rem 0.9rem; margin-top: 1rem; display: inline-block; }
@media (max-width: 760px) {
  .steps { grid-template-columns: 1fr; }
  .step { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; padding-right: 0; }
  .step:first-child { border-top: 0; }
}

/* ---------- demo ---------- */
.demo-frame {
  margin-top: clamp(2rem, 4vw, 3rem);
  position: relative; aspect-ratio: 16 / 9; border-radius: var(--radius);
  overflow: hidden; border: 1px solid var(--line); cursor: pointer;
  background: var(--ink-sunken);
}
.demo-frame img { width: 100%; height: 100%; object-fit: cover; opacity: 0.78; transition: opacity 0.3s var(--ease-soft), transform 0.5s var(--ease-out); }
.demo-frame:hover img { opacity: 0.9; transform: scale(1.02); }
.demo-frame iframe { width: 100%; height: 100%; border: 0; display: block; }
.demo-play {
  position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none;
}
.demo-play .disc {
  width: 84px; height: 84px; border-radius: 50%;
  background: color-mix(in oklab, var(--paper) 92%, transparent); color: var(--ink);
  display: grid; place-items: center;
  transition: transform 0.2s var(--ease-out), background 0.2s;
}
.demo-frame:hover .demo-play .disc { transform: scale(1.07); background: #fff; }
.demo-cap { position: absolute; left: 1.1rem; bottom: 1rem; font-family: var(--mono); font-size: 0.8rem; color: var(--paper); text-shadow: 0 1px 8px rgba(0,0,0,0.6); }

/* ---------- personas ---------- */
.personas { margin-top: clamp(2.5rem, 5vw, 4rem); display: grid; gap: 0; }
.persona {
  display: grid; grid-template-columns: 0.6fr 1fr 1fr; gap: clamp(1.2rem, 4vw, 3rem);
  padding-block: clamp(1.6rem, 3vw, 2.4rem); border-top: 1px solid var(--paper-line); align-items: baseline;
}
.persona:last-child { border-bottom: 1px solid var(--paper-line); }
.persona .who { font-family: var(--sans); font-weight: 600; font-size: clamp(1.1rem, 0.9rem + 0.8vw, 1.5rem); letter-spacing: -0.02em; }
.persona .col .tag { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--on-paper-muted); }
.persona .col p { margin-top: 0.5rem; color: var(--on-paper); font-size: 1rem; }
.persona .col.with p { color: var(--on-paper); }
.persona .col.with .tag { color: var(--accent-deep); }
@media (max-width: 820px) {
  .persona { grid-template-columns: 1fr; gap: 0.9rem; }
}

/* ---------- determinism band ---------- */
.det { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.det-claim { margin-top: 1.3rem; font-family: var(--serif); font-size: clamp(1.7rem, 1.1rem + 2.8vw, 3.1rem); line-height: 1.16; letter-spacing: -0.025em; }
.det-claim .strike { color: var(--on-ink-faint); }
.det-claim .keep { color: var(--on-ink); }
.det-note { margin-top: 1.4rem; color: var(--on-ink-muted); max-width: 42ch; line-height: 1.58; }
.det-note strong { color: var(--on-ink); font-weight: 600; }
.det-tags { margin-top: 1.7rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.det-tags span {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--on-ink-muted);
  padding: 0.38rem 0.8rem; border: 1px solid var(--line); border-radius: 999px;
  white-space: nowrap;
}

/* ---------- FAQ ---------- */
.faq { margin-top: 2.4rem; max-width: 860px; border-bottom: 1px solid var(--line); }
.faq-item { border-top: 1px solid var(--line); }
.faq-item summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.15rem 0.2rem;
  font-family: var(--sans); font-weight: 600; font-size: 1.06rem;
  letter-spacing: -0.01em;
  transition: color 0.2s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--accent); }
.faq-x { position: relative; flex: 0 0 auto; width: 14px; height: 14px; }
.faq-x::before, .faq-x::after {
  content: ""; position: absolute; inset: 0; margin: auto; background: var(--accent);
  transition: transform 0.25s ease;
}
.faq-x::before { width: 14px; height: 2px; }
.faq-x::after { width: 2px; height: 14px; }
.faq-item[open] .faq-x::after { transform: rotate(90deg); }
.faq-a p { padding: 0 0.2rem 1.25rem; color: var(--on-ink-muted); max-width: 68ch; line-height: 1.6; }
.det-list { display: grid; gap: 1.4rem; }
.det-item { border-top: 1px solid var(--line); padding-top: 1.1rem; }
.det-item h4 { font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); font-weight: 500; }
.det-item p { margin-top: 0.5rem; color: var(--on-ink-muted); font-size: 1rem; }
@media (max-width: 820px) { .det { grid-template-columns: 1fr; } }

/* ---------- proof ---------- */
.proof-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.proof-list { margin-top: clamp(2rem, 4vw, 3rem); columns: 2; column-gap: clamp(2rem, 6vw, 5rem); }
.proof-list .row { break-inside: avoid; display: flex; gap: 0.8rem; padding-block: 0.85rem; border-bottom: 1px solid var(--line-soft); align-items: baseline; }
.proof-list .row .dot { color: var(--accent); font-family: var(--mono); flex: none; }
.proof-list .row span { color: var(--on-ink-muted); }
@media (max-width: 680px) { .proof-list { columns: 1; } }

/* ---------- CTA ---------- */
.cta { text-align: center; }
.cta h2 { font-size: clamp(2.2rem, 1.4rem + 3.4vw, 4rem); }
.cta .serif-line { font-family: var(--serif); font-weight: 400; font-style: italic; color: var(--on-ink-muted); }
.cta-actions { margin-top: 2.2rem; display: flex; gap: 0.85rem; justify-content: center; flex-wrap: wrap; }
.cta-note { margin-top: 1.4rem; font-family: var(--mono); font-size: 0.8rem; color: var(--on-ink-faint); }

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--line); padding-block: 3.5rem; }
.foot .wrap { display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap; align-items: flex-start; }
.foot .brand b { font-size: 1.05rem; }
.foot .tag { margin-top: 0.8rem; font-family: var(--mono); font-size: 0.8rem; color: var(--on-ink-faint); letter-spacing: 0.04em; }
.foot-cols { display: flex; gap: clamp(2rem, 6vw, 5rem); flex-wrap: wrap; }
.foot-cols a { display: block; color: var(--on-ink-muted); padding-block: 0.32rem; font-family: var(--sans); font-size: 0.95rem; transition: color 0.2s; }
.foot-cols a:hover { color: var(--on-ink); }
.foot-cols .h { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--on-ink-faint); margin-bottom: 0.6rem; }

/* ---------- reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: 0.07s; }
.reveal[data-d="2"] { transition-delay: 0.14s; }
.reveal[data-d="3"] { transition-delay: 0.21s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .btn, .link .arr, .demo-frame img, .hero-art img { transition: none !important; }
}

/* ============================================================
   Manifesto page
   ============================================================ */
.manifesto { max-width: 720px; margin-inline: auto; }
.manifesto .return { font-family: var(--sans); font-size: 0.92rem; color: var(--on-ink-muted); display: inline-flex; gap: 0.5rem; align-items: center; }
.manifesto .return:hover { color: var(--on-ink); }
.man-title { font-family: var(--sans); font-weight: 600; font-size: clamp(2.2rem, 1.5rem + 3vw, 3.6rem); letter-spacing: -0.03em; margin-top: 2.5rem; line-height: 1.04; }
.man-rule { font-family: var(--serif); font-style: italic; font-size: clamp(1.2rem, 1rem + 0.8vw, 1.5rem); color: var(--accent); margin-top: 1.2rem; }
.man-body { margin-top: 3rem; font-size: clamp(1.1rem, 1rem + 0.4vw, 1.25rem); line-height: 1.72; }
.man-body h2 { font-family: var(--serif); font-weight: 500; font-style: italic; font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.1rem); letter-spacing: -0.01em; color: var(--on-ink); margin-top: 3.2rem; margin-bottom: 1.2rem; line-height: 1.2; }
.man-body p { margin-top: 1.25rem; color: #ddd8cc; }
.man-body p:first-child { margin-top: 0; }
.man-body .drop::first-letter { font-size: 3.2em; line-height: 0.8; float: left; padding: 0.08em 0.12em 0 0; font-weight: 500; color: var(--accent); font-family: var(--serif); }
.man-body strong { color: var(--on-ink); font-weight: 500; }
.man-body .lift { font-family: var(--serif); font-style: italic; font-size: 1.35em; line-height: 1.3; color: var(--on-ink); display: block; margin-block: 2.2rem; padding-left: 1.4rem; border-left: 2px solid var(--accent); }
.man-end { margin-top: 4rem; padding-top: 2.5rem; border-top: 1px solid var(--line); }
.man-end .stamp { font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.1em; color: var(--accent); text-transform: uppercase; }
.man-end p { margin-top: 1.2rem; font-family: var(--serif); font-size: clamp(1.3rem, 1rem + 1.4vw, 1.9rem); line-height: 1.28; letter-spacing: -0.01em; }




/* ---------- demo filmstrip (video cards) ---------- */
.demo-strip-wrap {
  margin-top: clamp(2rem, 4vw, 3rem);
  display: grid; grid-template-columns: auto 1fr auto; align-items: center;
  gap: clamp(0.6rem, 1.5vw, 1rem);
  /* full-bleed: the filmstrip escapes the page column and uses the viewport */
  width: 100vw; margin-left: calc(50% - 50vw);
  padding: 0 clamp(0.8rem, 2vw, 1.6rem); box-sizing: border-box;
}
.demo-strip {
  display: flex; gap: clamp(0.8rem, 1.6vw, 1.2rem);
  overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth;
  padding: 0.25rem; scrollbar-width: none;
}
.demo-strip::-webkit-scrollbar { display: none; }
.demo-card {
  position: relative; flex: 0 0 min(62vw, 900px); aspect-ratio: 16 / 9;
  border-radius: var(--radius); overflow: hidden; cursor: pointer;
  border: 1px solid var(--line); background: #000;
  scroll-snap-align: center;
  transition: transform 0.35s var(--ease-out), border-color 0.25s var(--ease-soft), box-shadow 0.35s var(--ease-soft);
}
.demo-card:hover { transform: translateY(-3px); border-color: var(--on-ink-muted); }
.demo-card.active { border-color: var(--on-ink-muted); box-shadow: 0 18px 50px rgba(0,0,0,0.35); }
.demo-card video { width: 100%; height: 100%; display: block; object-fit: cover; }
.demo-card-title {
  position: absolute; left: 0.65rem; top: 0.65rem; z-index: 2;
  font-family: var(--sans); font-size: 0.86rem; font-weight: 600;
  color: #fff; background: rgba(12,12,14,0.62); backdrop-filter: blur(6px);
  padding: 0.32rem 0.7rem; border-radius: 999px; pointer-events: none;
}
.demo-card-fs {
  position: absolute; right: 0.65rem; bottom: 1.35rem; z-index: 3;
  width: 34px; height: 34px; border-radius: 999px; cursor: pointer;
  display: grid; place-items: center;
  border: 1px solid rgba(255,255,255,0.25); background: rgba(12,12,14,0.55);
  color: #fff; opacity: 0; transition: opacity 0.2s var(--ease-soft);
  backdrop-filter: blur(6px);
}
.demo-card:hover .demo-card-fs, .demo-card.active .demo-card-fs { opacity: 1; }
.demo-card-play {
  position: absolute; inset: 0; z-index: 2; display: grid; place-items: center;
  pointer-events: none; opacity: 1; transition: opacity 0.25s var(--ease-soft);
}
.demo-card.playing .demo-card-play { opacity: 0; }
.demo-card.playing:hover .demo-card-play { opacity: 1; }
.demo-arrow {
  width: 44px; height: 44px; border-radius: 999px; cursor: pointer;
  display: grid; place-items: center;
  border: 1px solid var(--line); background: transparent; color: var(--on-ink-muted);
  transition: color 0.2s var(--ease-soft), border-color 0.2s var(--ease-soft), transform 0.15s var(--ease-soft);
}
.demo-arrow:hover { color: var(--on-ink); border-color: var(--on-ink-muted); transform: scale(1.06); }
@media (max-width: 720px) {
  .demo-strip-wrap { grid-template-columns: 1fr; }
  .demo-arrow { display: none; }
  .demo-card { flex-basis: 86%; }
}

/* seek bar on the active card */
.demo-card-seek {
  position: absolute; left: 0; right: 0; bottom: 0; height: 22px; z-index: 4;
  cursor: pointer; opacity: 0; transition: opacity 0.2s var(--ease-soft);
  display: flex; align-items: flex-end;
}
.demo-card:hover .demo-card-seek, .demo-card.active .demo-card-seek { opacity: 1; }
.demo-card-seek .rail {
  width: 100%; height: 5px; background: rgba(255,255,255,0.22);
}
.demo-card-seek .fill {
  height: 100%; width: 0%; background: #fff; transition: width 0.1s linear;
}

/* card engagement metrics */
.demo-card-meta {
  position: absolute; top: 0.65rem; right: 0.65rem; z-index: 3;
  display: flex; gap: 0.4rem; align-items: center;
}
.demo-card-meta .metric {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-family: var(--sans); font-size: 0.78rem; font-weight: 600;
  color: #fff; background: rgba(12,12,14,0.55); backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.18); border-radius: 999px;
  padding: 0.28rem 0.62rem;
}
.demo-card-meta button.metric { cursor: pointer; transition: transform 0.15s var(--ease-soft), background 0.2s var(--ease-soft); }
.demo-card-meta button.metric:hover { background: rgba(12,12,14,0.75); transform: scale(1.05); }
.demo-card-meta .mlike.liked svg { fill: #fff; stroke: #fff; }
.demo-card-meta .mlike.pop svg { animation: likePop 0.35s var(--ease-out); }
@keyframes likePop {
  0% { transform: scale(1); } 45% { transform: scale(1.45); } 100% { transform: scale(1); }
}