/* ============================================================
   Portal Launcher site v2: "The Descent"
   Flat color blocking, hairline frames, colossal display type,
   film grain, one persistent WebGL world behind everything.
   No gradients. Texture comes from the scene and the grain.
   ============================================================ */

:root {
  --ink: #08060d;
  --panel: #0d0a15;
  --card: #0f0b18;
  --raised: #1b1526;
  --hover: #251d36;
  --hair: rgba(190, 164, 255, 0.14);
  --hair-strong: rgba(190, 164, 255, 0.32);
  --text: #f1ecfa;
  --muted: #a99cc6;
  --dim: #7d6fa3;
  --accent: #b46cff;
  --deep: #7c3aed;
  --magenta: #ff4fd8;
  --green: #1bd96a;
  --paper: #ece6f6;
  --paper-ink: #16101f;
  --paper-dim: #6c5f8f;
  --font-display: "Anton", "Arial Narrow", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --wrap: 1200px;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0417rem;
  line-height: 1.65;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--magenta); }
::selection { background: var(--deep); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--ink); }
::-webkit-scrollbar-thumb { background: var(--raised); border: 2px solid var(--ink); }
::-webkit-scrollbar-thumb:hover { background: var(--hover); }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 400;
  background: var(--deep); color: #fff; padding: 10px 18px;
  font-family: var(--font-mono); font-size: 12px;
}
.skip-link:focus { left: 0; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: clamp(20px, 5vw, 56px); }
.wrap-narrow { max-width: 840px; }
.section { position: relative; padding: clamp(100px, 15vh, 180px) 0; background: var(--ink); }
main { position: relative; z-index: 2; }
.window { background: transparent; }

/* ---------- type ---------- */
.mono {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
}
.display {
  font-family: var(--font-display);
  font-weight: 400;
  text-transform: uppercase;
  line-height: 0.94;
  letter-spacing: 0.012em;
}
.h2 { font-size: clamp(2.6rem, 6vw, 4.8rem); margin-bottom: 28px; }
.acc { color: var(--accent); }
.lead { color: var(--muted); font-size: clamp(1.02rem, 1.35vw, 1.16rem); max-width: 620px; }

/* ---------- reveal regimes ---------- */
html.js [data-r] { opacity: 0; transform: translateY(34px); }
html.lite [data-r] { transition: opacity 0.7s cubic-bezier(0.2, 0.6, 0.2, 1), transform 0.7s cubic-bezier(0.2, 0.6, 0.2, 1); }
html.lite [data-r].in { opacity: 1; transform: none; }

/* ---------- fixed layers ---------- */
.world { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; }
html.lite .world, html.no3d .world { display: none; }

.grain {
  position: fixed; left: -50%; top: -50%; width: 200%; height: 200%;
  background: url("../assets/grain.png") repeat;
  opacity: 0.5; pointer-events: none; z-index: 80;
  mix-blend-mode: overlay;
}
html.fx .grain { animation: grain-shift 1.4s steps(4) infinite; }
@keyframes grain-shift {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-2%, 1%); }
  50% { transform: translate(1%, -2%); }
  75% { transform: translate(-1%, 2%); }
  100% { transform: translate(0, 0); }
}

.flash {
  position: fixed; inset: 0; background: #efe7ff;
  opacity: 0; pointer-events: none; z-index: 45;
}

/* cursor: a crosshair that becomes a block-selection outline over anything
   clickable, the way Minecraft highlights the block you are looking at */
.cursor {
  display: none; position: fixed; left: 0; top: 0; z-index: 300;
  pointer-events: none; mix-blend-mode: difference;
}
.cursor i {
  display: block; position: relative;
  width: 26px; height: 26px; margin: -13px 0 0 -13px;
  transition: transform 0.22s cubic-bezier(0.3, 1.4, 0.5, 1);
}
.cursor i::before, .cursor i::after {
  content: ""; position: absolute; background: #fff;
  transition: opacity 0.18s ease, transform 0.18s ease;
}
.cursor i::before { left: 50%; top: 5px; bottom: 5px; width: 1.5px; transform: translateX(-50%); }
.cursor i::after { top: 50%; left: 5px; right: 5px; height: 1.5px; transform: translateY(-50%); }
.cursor s {
  position: absolute; inset: 0; display: block;
  border: 1.5px solid #fff; border-radius: 2px; opacity: 0;
  transform: scale(0.4);
  transition: opacity 0.2s ease, transform 0.24s cubic-bezier(0.3, 1.4, 0.5, 1);
}
.cursor.big i::before, .cursor.big i::after { opacity: 0; transform: translateX(-50%) scale(0.3); }
.cursor.big i::after { transform: translateY(-50%) scale(0.3); }
.cursor.big s { opacity: 1; transform: scale(1); }
.cursor.down i { transform: scale(0.78); }
@media (hover: hover) and (pointer: fine) {
  html.fx body, html.fx a, html.fx button, html.fx summary { cursor: none; }
}

/* ---------- HUD ---------- */
.hud {
  position: fixed; bottom: 18px; z-index: 50;
  display: flex; flex-direction: column; gap: 5px;
  font-size: 10px; color: #fff; opacity: 0.62;
  mix-blend-mode: difference; pointer-events: none;
}
.hud-l { left: 24px; }
html.lite .hud, html:not(.js) .hud { display: none; }
@media (max-width: 780px) { .hud { display: none; } }

/* ---------- loader ---------- */
.loader {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: var(--ink);
  align-items: center; justify-content: center;
  clip-path: inset(0 0 0 0);
}
html.fx .loader { display: flex; }
.loader-inner {
  width: min(300px, 74vw);
  display: flex; flex-direction: column; align-items: center; gap: 26px;
}
.loader-inner img {
  filter: drop-shadow(0 0 34px rgba(124, 58, 237, 0.5)) drop-shadow(0 10px 22px rgba(0, 0, 0, 0.6));
}
html.fx .loader-inner img { animation: loader-pulse 2.2s ease-in-out infinite; }
@keyframes loader-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}
.loader-bar {
  width: 100%; height: 2px; background: var(--raised); overflow: hidden;
}
.loader-bar i {
  display: block; height: 100%; width: 100%; background: var(--accent);
  transform: scaleX(0); transform-origin: left center;
}
.loader-row {
  width: 100%; display: flex; justify-content: space-between;
  font-family: var(--font-mono); font-size: 9.5px; font-weight: 500;
  letter-spacing: 0.2em; color: var(--dim);
}
.loader-row #loader-pct { color: var(--accent); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 3px;
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase;
  padding: 15px 28px; border: 1px solid transparent; border-radius: 999px;
  cursor: pointer; white-space: nowrap; text-align: center;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}
.btn small { font-size: 8.5px; letter-spacing: 0.2em; opacity: 0.75; font-weight: 400; }
.btn-primary { background: var(--deep); color: #fff; }
.btn-primary:hover { background: var(--accent); color: #120829; transform: translateY(-2px); }
.btn-ghost { border-color: var(--hair-strong); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: #fff; background: rgba(124, 58, 237, 0.14); transform: translateY(-2px); }
.btn-big { padding: 17px 32px; align-items: flex-start; text-align: left; }
.btn-big span:first-child { font-size: 12px; }
.btn-nav { padding: 10px 22px; }

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 0.35s ease, border-color 0.35s ease, transform 0.4s cubic-bezier(0.3, 0.7, 0.2, 1);
}
.nav.hide { transform: translateY(-101%); }
.nav.scrolled {
  background: rgba(8, 6, 13, 0.85);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border-bottom-color: var(--hair);
}
.nav-inner {
  max-width: 1360px; margin-inline: auto;
  padding: 14px clamp(16px, 4vw, 44px);
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.nav-brand {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-display); font-size: 1.25rem; letter-spacing: 0.06em;
  color: var(--text);
}
.nav-brand:hover { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: clamp(16px, 2.4vw, 34px); }
.nav-links > a:not(.btn) {
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--muted); transition: color 0.2s ease;
}
.nav-links > a:not(.btn):hover { color: var(--text); }
.nav-gh { display: inline-flex; align-items: center; gap: 8px; }
.nav-burger {
  display: none; background: none; border: 0; cursor: pointer;
  width: 42px; height: 42px; position: relative;
}
.nav-burger span {
  position: absolute; left: 9px; right: 9px; height: 2px; background: var(--text);
  transition: transform 0.3s ease, top 0.3s ease;
}
.nav-burger span:nth-child(1) { top: 16px; }
.nav-burger span:nth-child(2) { top: 24px; }
.nav-burger[aria-expanded="true"] span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { top: 20px; transform: rotate(-45deg); }

@media (max-width: 880px) {
  .nav-burger { display: block; }
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: rgba(8, 6, 13, 0.97);
    -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--hair);
    padding: 16px clamp(16px, 4vw, 44px) 24px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links > a:not(.btn) { padding: 12px 4px; font-size: 12px; }
  .nav-links .btn { margin-top: 10px; }
}

/* ---------- hero ---------- */
.hero {
  position: relative; z-index: 2;
  min-height: 100svh;
  display: flex; align-items: center;
  padding: 150px 0 140px;
}
.hero-grid {
  width: 100%; max-width: var(--wrap); margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 56px);
  display: grid; grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(24px, 4vw, 60px); align-items: center;
}
.hero-h1 { font-size: clamp(2.9rem, 7.4vw, 6.6rem); }
.hero-h1 .hl { display: block; }
.hl-accent { color: var(--accent); }
.hero-sub { color: var(--muted); max-width: 540px; margin: 32px 0 40px; font-size: clamp(1rem, 1.3vw, 1.14rem); }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; align-items: stretch; }
.hero-note { margin-top: 32px; color: var(--dim); font-size: 0.92rem; max-width: 440px; }

.hero-side { display: flex; justify-content: center; }
html.fx .hero-side { animation: bob 7s ease-in-out infinite; }
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-18px); } }
.hero-logo {
  width: clamp(190px, 26vw, 350px); height: auto;
  filter: drop-shadow(0 30px 44px rgba(0, 0, 0, 0.6)) drop-shadow(0 0 54px rgba(124, 58, 237, 0.4));
}


/* ---------- the descent ---------- */
.gate { position: relative; z-index: 2; }
.gate-stage {
  position: relative; padding: 130px 20px;
  display: flex; flex-direction: column; align-items: center; gap: 54px;
}
.beat {
  font-family: var(--font-display); text-transform: uppercase;
  font-size: clamp(1.9rem, 5.4vw, 4rem); line-height: 1.02;
  letter-spacing: 0.012em;
  text-align: center; max-width: 900px;
  text-shadow: 0 1px 4px rgba(8, 6, 13, 0.8), 0 2px 30px rgba(8, 6, 13, 0.95), 0 0 60px rgba(8, 6, 13, 0.65);
}
.beat-quote { color: #d6cbef; }
.beat-final { color: var(--accent); text-shadow: 0 1px 4px rgba(8, 6, 13, 0.85), 0 2px 30px rgba(8, 6, 13, 0.95), 0 0 60px rgba(8, 6, 13, 0.75); }
.beat-sub { display: block; margin-top: 18px; color: var(--dim); font-size: 10px; letter-spacing: 0.3em; }

html.fx .gate { height: 520vh; }
html.fx .gate-stage {
  position: sticky; top: 0; height: 100vh; padding: 0;
  display: block; overflow: hidden;
}
html.fx .gate-beats .beat {
  position: absolute; left: 50%; top: 50%;
  width: min(92vw, 940px);
  transform: translate(-50%, -50%);
  opacity: 0;
  will-change: opacity, transform;
}

/* ---------- sharing ---------- */
.sharing { background: var(--panel); border-top: 1px solid var(--hair); border-bottom: 1px solid var(--hair); }

.steps { display: grid; grid-template-columns: 1fr; gap: 48px; margin-top: 80px; }
.step { padding: 38px 0; border-top: 1px solid var(--hair); }
.step h3 { font-size: clamp(2rem, 3.4vw, 2.9rem); margin-bottom: 12px; }
.step p { color: var(--muted); max-width: 470px; }
.steps-visual { order: -1; }

@media (min-width: 960px) {
  html.fx .steps { grid-template-columns: 1fr 1fr; gap: 90px; }
  html.fx .steps-visual { order: 2; position: sticky; top: calc(50vh - 175px); align-self: start; }
  html.fx .steps-text .step {
    min-height: 76vh; border-top: 0;
    display: flex; flex-direction: column; justify-content: center;
    opacity: 0.25; transition: opacity 0.45s ease;
  }
  html.fx .steps-text .step.active { opacity: 1; }
}

/* mock launcher window */
.mockwin {
  background: #0c0913;
  border: 1px solid var(--hair-strong);
  border-radius: 6px;
  box-shadow: 0 44px 90px rgba(0, 0, 0, 0.55), 0 0 80px rgba(124, 58, 237, 0.13);
  overflow: hidden;
  max-width: 520px; margin-inline: auto;
}
/* Windows-style titlebar: this is a Qt app on Windows, not a Mac */
.mock-chrome {
  display: flex; align-items: center; gap: 9px;
  padding: 9px 8px 9px 14px; border-bottom: 1px solid var(--hair);
  color: var(--dim);
  font-family: var(--font-mono); font-size: 9px; font-weight: 500;
  letter-spacing: 0.2em; text-transform: uppercase;
}
.win-caps { margin-left: auto; display: flex; }
.win-caps i { position: relative; width: 34px; height: 22px; opacity: 0.5; }
.win-caps .c-min::before {
  content: ""; position: absolute; left: 12px; right: 12px; top: 50%; height: 1.3px;
  background: var(--muted);
}
.win-caps .c-max::before {
  content: ""; position: absolute; left: 12.5px; top: 6.5px; width: 9px; height: 9px;
  border: 1.3px solid var(--muted);
}
.win-caps .c-close::before, .win-caps .c-close::after {
  content: ""; position: absolute; left: 12px; width: 10px; top: 50%; height: 1.3px;
  background: var(--muted);
}
.win-caps .c-close::before { transform: rotate(45deg); }
.win-caps .c-close::after { transform: rotate(-45deg); }
.mock-body { position: relative; height: 265px; }
.mock-state {
  position: absolute; inset: 0; padding: 28px;
  opacity: 0; transform: translateY(12px);
  transition: opacity 0.45s ease, transform 0.55s cubic-bezier(0.2, 0.7, 0.2, 1);
  display: flex; flex-direction: column; gap: 18px;
}
.mockwin[data-state="1"] .ms1, .mockwin[data-state="2"] .ms2, .mockwin[data-state="3"] .ms3 { opacity: 1; transform: none; }
.mock-h { font-weight: 600; font-size: 1.12rem; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.chip {
  font-family: var(--font-mono); font-size: 8.5px; font-weight: 500;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 4px 11px; border: 1px solid var(--hair-strong); border-radius: 999px; color: var(--muted);
}
.chip-on { color: var(--green); border-color: rgba(27, 217, 106, 0.4); }
.mock-field {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  background: var(--ink); border: 1px solid var(--hair); border-radius: 4px; padding: 12px 14px;
  font-size: 11px; letter-spacing: 0.02em;
}
.mock-link { color: var(--accent); overflow: hidden; text-overflow: ellipsis; }
.mock-copy { color: var(--text); background: var(--raised); border-radius: 3px; padding: 5px 12px; font-size: 9px; letter-spacing: 0.16em; text-transform: uppercase; }
.mock-row { display: flex; align-items: center; gap: 6px; }
.fr-av.sm { width: 23px; height: 23px; border-radius: 6px; font-size: 10px; }

/* Qt-style toggle switch, on */
.tgl {
  width: 32px; height: 17px; border-radius: 999px; background: var(--deep);
  position: relative; flex-shrink: 0;
}
.tgl i {
  position: absolute; right: 2.5px; top: 2.5px; width: 12px; height: 12px;
  border-radius: 50%; background: #fff;
}

/* instance row, like the real instance list */
.mock-inst { display: flex; align-items: center; gap: 12px; }
.mock-inst img { border-radius: 7px; border: 1px solid var(--hair-strong); flex-shrink: 0; }
.mi-id { display: flex; flex-direction: column; line-height: 1.3; min-width: 0; }
.mi-id b { font-size: 14px; font-weight: 600; white-space: nowrap; }
.mi-id small { font-size: 10.5px; color: var(--dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mock-inst .chip { margin-left: auto; flex-shrink: 0; }
.mock-actions { display: flex; align-items: center; gap: 14px; margin-top: auto; }
.mock-note { margin-left: 8px; color: var(--dim); font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; }
.mock-diff { list-style: none; font-size: 12px; letter-spacing: 0.02em; display: flex; flex-direction: column; gap: 8px; }
.mock-diff .add { color: var(--green); }
.mock-diff .mod { color: #f2c14e; }
.mock-diff .up { color: var(--accent); }
.mock-progress { height: 6px; background: var(--ink); border: 1px solid var(--hair); overflow: hidden; }
.mock-progress span { display: block; height: 100%; width: 0; background: var(--accent); }
.mockwin[data-state="2"] .mock-progress span { animation: fill 1.6s ease-out forwards; }
@keyframes fill { to { width: 100%; } }
.mock-changelog {
  background: var(--ink); border: 1px solid var(--hair); padding: 13px 15px;
  display: flex; flex-direction: column; gap: 4px;
}
.mock-changelog strong { font-size: 0.92rem; }
.mock-changelog span { color: var(--dim); font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.1em; text-transform: uppercase; }
.mock-play {
  align-self: flex-start;
  background: var(--deep); color: #fff; border-radius: 5px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase;
  padding: 11px 32px;
}
.mock-sync {
  display: flex; align-items: center; gap: 8px;
  color: var(--green); font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.12em; text-transform: uppercase;
}
.mock-sync i { width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.mock-changelog { border-left: 2px solid var(--accent); }

/* ---------- paper chapter ---------- */
.paper { background: var(--paper); color: var(--paper-ink); }
.paper-display {
  font-size: clamp(2.7rem, 7.8vw, 6.2rem);
  color: var(--paper-ink); max-width: 1020px; margin-bottom: 34px;
}
.paper-lead { color: #4d4268; max-width: 640px; }
.paper-note { margin-top: 46px; color: var(--paper-dim); font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase; }

.interop-diagram { margin-top: 60px; max-width: 820px; display: flex; align-items: center; }
.io-node {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 16px;
  border: 1.5px solid rgba(22, 16, 31, 0.55); border-radius: 8px;
  padding: 24px 18px; background: rgba(255, 255, 255, 0.35);
}
.io-node img { flex-shrink: 0; }
.io-txt { display: flex; flex-direction: column; gap: 3px; text-align: left; }
.io-txt strong { font-size: 17px; font-weight: 600; color: var(--paper-ink); line-height: 1.15; }
.io-txt .mono { font-size: 8.5px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--paper-dim); }
.io-wire { position: relative; width: clamp(60px, 13vw, 150px); height: 1.5px; background: rgba(22, 16, 31, 0.35); }
.io-wire-label {
  position: absolute; left: 50%; top: -24px; transform: translateX(-50%);
  font-size: 8px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--paper-dim); white-space: nowrap;
}
.io-pk { position: absolute; top: 50%; margin-top: -3.5px; width: 7px; height: 7px; border-radius: 2px; opacity: 0; }
.pk1 { background: var(--deep); }
.pk2 { background: var(--green); }
/* your update goes out, their sync comes back */
html.fx .pk1 { animation: pk-out 3s ease-in-out infinite; }
html.fx .pk2 { animation: pk-back 3s ease-in-out infinite 1.5s; }
@keyframes pk-out {
  0% { left: 0; opacity: 0; }
  12% { opacity: 1; }
  40% { opacity: 1; }
  50%, 100% { left: calc(100% - 7px); opacity: 0; }
}
@keyframes pk-back {
  0% { left: calc(100% - 7px); opacity: 0; }
  12% { opacity: 1; }
  40% { opacity: 1; }
  50%, 100% { left: 0; opacity: 0; }
}
@media (max-width: 560px) {
  .interop-diagram { flex-direction: column; }
  .io-node { width: 100%; }
  .io-wire { width: 1.5px; height: 52px; }
  .io-wire-label { top: 50%; left: 18px; transform: translateY(-50%); }
  .io-pk { top: auto; left: 50%; margin: 0 0 0 -3.5px; }
  html.fx .pk1 { animation-name: pk-out-v; }
  html.fx .pk2 { animation-name: pk-back-v; }
  @keyframes pk-out-v {
    0% { top: 0; opacity: 0; }
    12% { opacity: 1; }
    40% { opacity: 1; }
    50%, 100% { top: calc(100% - 7px); opacity: 0; }
  }
  @keyframes pk-back-v {
    0% { top: calc(100% - 7px); opacity: 0; }
    12% { opacity: 1; }
    40% { opacity: 1; }
    50%, 100% { top: 0; opacity: 0; }
  }
}

/* ---------- the arsenal (horizontal) ---------- */
.features { padding-bottom: 0; }
.feat-head { padding-bottom: clamp(50px, 8vh, 90px); }

.feat-wrap { position: relative; }
.feat-track { display: flex; gap: 18px; padding: 0 clamp(20px, 5vw, 56px) 60px; width: max-content; }
.slab {
  position: relative; overflow: hidden;
  display: flex; flex-direction: column;
  width: min(430px, 82vw); height: 500px;
  flex: 0 0 auto;
  background: var(--card);
  border: 1px solid var(--hair);
  padding: 36px 32px 34px;
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.slab:hover { border-color: var(--hair-strong); transform: translateY(-5px); }
.slab h3 { font-size: clamp(1.7rem, 2.2vw, 2.2rem); margin: 0 0 16px; transition: color 0.3s ease; }
.slab:hover h3 { color: var(--accent); }
.slab p { color: var(--muted); font-size: 0.97rem; max-width: 340px; }
.slab strong { color: var(--text); }
.slab-art { margin-top: auto; }

/* native horizontal scroll below the fx desktop pin */
@media (max-width: 1023px) {
  .feat-wrap { overflow-x: auto; scroll-snap-type: x proximity; -webkit-overflow-scrolling: touch; scrollbar-width: thin; }
  .slab { scroll-snap-align: center; height: 460px; }
}
html.lite .feat-wrap { overflow-x: auto; scroll-snap-type: x proximity; -webkit-overflow-scrolling: touch; }
@media (min-width: 1024px) {
  html.fx .feat-wrap { overflow: hidden; height: 100vh; display: flex; align-items: center; }
  html.fx .feat-track { padding-bottom: 0; }
}

/* ---- little launcher-panel illustrations inside the slabs ---- */
.panel {
  background: #0a0712;
  border: 1px solid var(--hair);
  border-radius: 8px;
  overflow: hidden;
}
.pnl-top {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 13px; border-bottom: 1px solid var(--hair);
  color: var(--dim);
  font-family: var(--font-mono); font-size: 8px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
}
.pnl-top i { width: 6px; height: 6px; background: var(--accent); flex-shrink: 0; }

.fr {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 13px;
  border-bottom: 1px solid rgba(190, 164, 255, 0.06);
}
.fr:last-child { border-bottom: 0; }
.fr-off { opacity: 0.5; }
.fr-av {
  width: 30px; height: 30px; border-radius: 7px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; color: #fff;
}
.av1 { background: var(--deep); }
.av2 { background: var(--magenta); color: #2b0b23; }
.av3 { background: #241d33; color: var(--dim); }
.fr-id { display: flex; flex-direction: column; line-height: 1.3; min-width: 0; }
.fr-id b { font-size: 13px; font-weight: 600; white-space: nowrap; }
.fr-id small { font-size: 10.5px; color: var(--dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fr-join {
  margin-left: auto; color: #fff; background: var(--deep); border-radius: 5px;
  font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.18em; text-transform: uppercase;
  padding: 6px 13px;
}
.fr-on { margin-left: auto; width: 7px; height: 7px; border-radius: 50%; background: var(--green); }

.pnl-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; padding: 11px 13px 8px; }
.pnl-gallery span { height: 54px; border-radius: 5px; border: 1px solid var(--hair); }
.pnl-gallery span:nth-child(1) { background: #241b38; }
.pnl-gallery span:nth-child(2) { background: #2d2247; }
.pnl-gallery span:nth-child(3) { background: #1b1428; }
.pnl-meta {
  display: flex; justify-content: space-between; padding: 4px 13px 11px;
  color: var(--dim);
  font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.12em; text-transform: uppercase;
}

.pnl-lines {
  display: flex; flex-direction: column; gap: 7px; padding: 12px 13px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.02em;
  color: var(--muted);
}
.pnl-lines .ok { color: var(--green); }

.pnl-bars { padding: 12px 13px; display: flex; flex-direction: column; gap: 10px; }
.pb {
  display: grid; grid-template-columns: 48px 1fr 54px; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.14em; text-transform: uppercase;
}
.pb span { color: var(--dim); }
.pb i { display: block; height: 13px; border-radius: 3px; }
.pb1 { background: #2b2142; width: 100%; }
.pb2 { background: var(--deep); width: 56%; }
.pb em { font-style: normal; color: var(--text); text-align: right; }

.sv {
  display: flex; align-items: center; gap: 11px;
  padding: 10px 13px;
  border-bottom: 1px solid rgba(190, 164, 255, 0.06);
}
.sv:last-child { border-bottom: 0; }
.sv-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); flex-shrink: 0; }
.sv-id { display: flex; flex-direction: column; line-height: 1.3; min-width: 0; }
.sv-id b { font-size: 12.5px; font-weight: 600; white-space: nowrap; }
.sv-id small { font-size: 10.5px; color: var(--dim); }
.sv-ping {
  margin-left: auto; color: var(--green); border: 1px solid rgba(27, 217, 106, 0.35);
  border-radius: 4px; padding: 3px 9px;
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.08em;
}

.slab-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; }
.slab-chips span {
  border: 1px solid var(--hair-strong); border-radius: 999px; color: var(--muted);
  font-family: var(--font-mono); font-size: 8.5px; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase; padding: 7px 13px;
}
.slab-ico { width: 27px; height: 27px; color: var(--accent); margin-bottom: 16px; flex-shrink: 0; }

/* ---------- proof ---------- */
.security { background: var(--ink); border-top: 1px solid var(--hair); }

.term {
  width: 100%; margin: 48px 0 18px;
  background: #060410; border: 1px solid var(--hair-strong);
}
.term-bar {
  display: flex; align-items: center;
  padding: 6px 8px 6px 16px; border-bottom: 1px solid var(--hair);
  color: var(--dim);
  font-family: var(--font-mono); font-size: 9px; font-weight: 500;
  letter-spacing: 0.2em; text-transform: uppercase;
}
.term-body { position: relative; padding: 22px 22px 20px; }
.term-code {
  font-family: var(--font-mono); font-size: 13px; line-height: 1.9;
  color: #cbb8f0; letter-spacing: 0.01em;
  white-space: pre; overflow-x: auto; scrollbar-width: thin;
  padding-right: 70px;
}
.term-prompt { color: var(--accent); }
.term-ok { color: var(--green); }
.term-comment { color: #564b78; }
@media (max-width: 700px) {
  .term-code { font-size: 11px; line-height: 2; padding-right: 0; }
  .copy-btn { top: 10px; right: 10px; }
}
.copy-btn {
  position: absolute; top: 16px; right: 16px;
  background: var(--raised); color: var(--text); border: 1px solid var(--hair-strong);
  border-radius: 4px;
  font-family: var(--font-mono); font-size: 9px; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase;
  padding: 7px 14px; cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.copy-btn:hover { background: var(--hover); border-color: var(--accent); }

.trust-grid { display: grid; gap: 16px; grid-template-columns: repeat(2, 1fr); margin-top: 16px; }
@media (max-width: 760px) { .trust-grid { grid-template-columns: 1fr; } }
.trust-card { background: var(--card); border: 1px solid var(--hair); padding: 30px; transition: border-color 0.3s ease; }
.trust-card:hover { border-color: var(--hair-strong); }
.trust-card h3 { font-size: 1.25rem; margin-bottom: 10px; }
.trust-card p { color: var(--muted); font-size: 0.95rem; }

.sec-note { margin-top: 30px; color: var(--dim); font-size: 0.9rem; max-width: 620px; }

/* ---------- prism strip ---------- */
.prism-strip {
  position: relative; z-index: 2;
  background: var(--panel);
  border-top: 1px solid var(--hair); border-bottom: 1px solid var(--hair);
  padding: 80px 0;
}
.prism-strip .wrap { max-width: 860px; text-align: center; }
.prism-strip h3 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); margin-bottom: 16px; }
.prism-strip p { color: var(--muted); font-size: 0.97rem; }

/* ---------- download ---------- */
.download { text-align: center; }
.download .wrap { display: flex; flex-direction: column; align-items: center; }
.dl-display { font-size: clamp(4rem, 13vw, 10.5rem); margin-bottom: 26px; text-shadow: 0 4px 44px rgba(8, 6, 13, 0.7); }
.dl-lead { margin-inline: auto; color: #d9cfef; text-shadow: 0 2px 22px rgba(8, 6, 13, 0.8); }
.dl-grid {
  margin-top: 60px; display: grid; gap: 16px;
  grid-template-columns: repeat(3, 1fr);
  width: 100%; max-width: 1000px;
}
@media (max-width: 860px) { .dl-grid { grid-template-columns: 1fr; max-width: 440px; } }
.dl-card {
  background: rgba(13, 10, 21, 0.82);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  border: 1px solid var(--hair);
  padding: 32px 26px;
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.dl-win { border-color: var(--hair-strong); }
.dl-card { transition: border-color 0.3s ease, transform 0.3s ease; }
.dl-card:hover { border-color: var(--hair-strong); transform: translateY(-4px); }
.dl-card h3 {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--text);
}
.dl-card .btn-primary { width: 100%; }
.dl-soon { color: var(--dim); font-size: 0.88rem; }
.dl-alt { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); }
.dl-alt:hover { color: var(--magenta); }
.dl-fineprint { margin-top: 44px; color: var(--dim); font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; line-height: 2.1; max-width: 640px; }

/* ---------- faq ---------- */
.faq { background: var(--ink); border-top: 1px solid var(--hair); }
.faq-item { border-bottom: 1px solid var(--hair); }
.faq .wrap-narrow > .faq-item:first-of-type { border-top: 1px solid var(--hair); margin-top: 48px; }
.faq-item summary {
  cursor: pointer; list-style: none;
  font-weight: 600; font-size: 1.08rem;
  padding: 22px 48px 22px 2px; position: relative;
  transition: color 0.2s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 8px; top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono); color: var(--accent); font-size: 1.4rem; font-weight: 400;
  transition: transform 0.3s ease;
}
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-item summary:hover { color: var(--accent); }
.faq-item p { color: var(--muted); padding: 0 2px 26px; max-width: 740px; }

/* ---------- footer ---------- */
.footer { position: relative; z-index: 2; padding: 90px 0 40px; border-top: 1px solid var(--hair); }
.foot-word {
  text-align: center;
  font-size: clamp(5rem, 17vw, 14rem); line-height: 0.8;
  color: transparent; -webkit-text-stroke: 1px rgba(190, 164, 255, 0.3);
  user-select: none; margin-bottom: 80px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 44px; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; gap: 36px; } }
.footer-name {
  margin-top: 16px; color: var(--text);
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  letter-spacing: 0.2em; text-transform: uppercase;
}
.footer-tag { color: var(--dim); font-size: 0.9rem; margin-top: 8px; }
.footer-col { display: flex; flex-direction: column; gap: 11px; }
.footer-col h4 {
  font-family: var(--font-mono); font-size: 10px; font-weight: 500;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--dim); margin-bottom: 8px;
}
.footer-col a { color: var(--muted); font-size: 0.94rem; }
.footer-col a:hover { color: var(--accent); }
.footer-legal { margin-top: 64px; padding-top: 28px; border-top: 1px solid var(--hair); }
.footer-legal p { color: var(--dim); font-size: 11px; max-width: 780px; }
.footer-legal p + p { margin-top: 8px; }

/* ---------- mobile hero ---------- */
@media (max-width: 900px) {
  .hero { padding-top: 120px; }
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-side { order: -1; }
  .hero-cta { justify-content: center; }
  .hero-sub, .hero-note { margin-inline: auto; }
  .step p { max-width: none; }
}

/* ---------- reduced motion hard stop ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto !important; }
}