/* ============================================
   Bobby Lo — Apps / Studio page
   Paper shell (inherits style.css tokens) +
   full-bleed dark product "stages".
   ============================================ */

/* ---------- page-local tokens ---------- */
.apps-page {
  --stage-bg:    #07070B;
  --stage-fg:    #F2F2F5;
  --stage-dim:   #8E8E9C;
  --stage-line:  rgba(255, 255, 255, 0.10);
  --accent-app:  #C4302B;          /* overridden per stage */
  --ease:        cubic-bezier(0.22, 1, 0.36, 1);
}

/* ============================================
   1. HERO — "lights out"

   The hero does not hand off to a dark section; it turns its own lights off.
   .lights is a tall scroll track, .apps-hero sticks inside it, and apps.js
   writes a 0→1 progress number into --dim as you scroll the track. Every colour
   below is a mix driven by that one number, so the whole room dims together.
   With JS off or reduced motion on, --dim stays 0 and the hero is simply paper.
   ============================================ */
.lights { position: relative; height: 210vh; }
/* the outro resolves faster than the hero, so it needs less track to do it in */
.lights--out { height: 165vh; }

.apps-hero {
  position: sticky;
  top: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: color-mix(in oklab, #07070B calc(var(--dim, 0) * 100%), var(--paper));
  color: color-mix(in oklab, #F2F2F5 calc(var(--dimfg, 0) * 100%), var(--ink));
}

/* dark rules on paper, fading out … */
.apps-hero::after,
.apps-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 70% 60% at 70% 30%, #000, transparent 75%);
}
.apps-hero::after {
  background-image:
    linear-gradient(var(--rule) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  opacity: calc(0.5 * (1 - var(--dim, 0)));
}
/* … and light rules on black, fading in */
.apps-hero::before {
  background-image:
    linear-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .07) 1px, transparent 1px);
  opacity: calc(var(--dim, 0));
}

/* the accent light that comes up as the room goes down */
.hero-glow {
  position: absolute;
  right: -8%;
  top: 14%;
  width: min(680px, 70vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: #B22F26;
  filter: blur(120px);
  pointer-events: none;
  opacity: calc(var(--dim, 0) * 0.45);
}

.apps-hero-inner { position: relative; z-index: 1; max-width: 860px; }

.apps-hero .eyebrow {
  color: color-mix(in oklab, #E0574F calc(var(--dimfg, 0) * 100%), var(--accent));
}

.apps-hero h1 {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(42px, 7.2vw, 82px);
  font-weight: 300;
  line-height: 1.0;
  letter-spacing: -2.4px;
  margin: 20px 0 24px;
  max-width: 15ch;
  color: inherit;
}
.apps-hero h1 em {
  font-style: italic;
  color: color-mix(in oklab, #E0574F calc(var(--dimfg, 0) * 100%), var(--accent));
}

.apps-lede {
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink-2);
  max-width: 58ch;
}
.apps-hero .apps-lede { color: inherit; opacity: .72; }

/* index of apps */
.apps-index {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-top: 44px;
  padding-top: 26px;
  border-top: 1px solid color-mix(in oklab, currentColor 16%, transparent);
}
.apps-index a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 1.2px;
  color: inherit;
  opacity: .5;
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  transition: opacity .2s ease, color .2s ease;
}
.apps-index a b { font-weight: 600; letter-spacing: 0; opacity: 1; }
.apps-index a:hover {
  opacity: 1;
  color: color-mix(in oklab, #E0574F calc(var(--dimfg, 0) * 100%), var(--accent));
}

.scroll-cue {
  margin-top: 56px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 2.4px;
  color: inherit;
  opacity: calc(0.55 * (1 - var(--dim, 0)));
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
}
.scroll-cue span {
  display: block;
  width: 1px;
  height: 34px;
  background: linear-gradient(currentColor, transparent);
  animation: cue 2.4s var(--ease) infinite;
}
@keyframes cue { 0%,100% { transform: scaleY(.4); opacity:.3 } 50% { transform: scaleY(1); opacity:1 } }

/* Without the scroll morph there is no transition to smooth, so each morphing
   block simply renders its resting state: the hero dark, the outro on paper. */
.no-morph .apps-hero    { --dim: 1; --dimfg: 1; }
.no-morph .capabilities { --dim: 1; --dimfg: 1; --grid: 1; }

/* ---------- nav follows the ground beneath it ----------
   The nav is sticky and this page spends most of its length on black, so it
   inverts while it is over the dark stretch instead of sitting there as a
   bright bar. apps.js toggles the class. */
.apps-page .nav {
  transition: background-color .4s var(--ease), border-color .4s var(--ease);
}
.apps-page .nav.nav--dark {
  background: rgba(7, 7, 11, .78);
  border-bottom-color: rgba(255, 255, 255, .10);
}
.apps-page .nav.nav--dark .nav-brand { color: #F2F2F5; }
.apps-page .nav.nav--dark .nav-links a { color: rgba(242, 242, 245, .68); }
.apps-page .nav.nav--dark .nav-links a:hover,
.apps-page .nav.nav--dark .nav-links a.active { color: #FFF; }

/* ============================================
   2. DARK STAGES
   ============================================ */
.stage {
  position: relative;
  background: var(--stage-bg);
  color: var(--stage-fg);
  padding: 120px 0;
  overflow: hidden;
  isolation: isolate;
}

/* soft accent light fields, moved by parallax JS */
.stage-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
  pointer-events: none;
  z-index: 0;
  will-change: transform;
}
.stage-glow.a { width: 560px; height: 560px; top: -160px; left: -140px; opacity: .40; }
.stage-glow.b { width: 480px; height: 480px; bottom: -200px; right: -160px; opacity: .26; }

.stage-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.stage.flip .stage-inner { direction: rtl; }
.stage.flip .stage-copy,
.stage.flip .stage-visual { direction: ltr; }

/* --- copy column --- */
.stage-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--stage-dim);
}
.stage-domain {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--accent-app);
  border: 1px solid color-mix(in oklab, var(--accent-app) 40%, transparent);
  background: color-mix(in oklab, var(--accent-app) 12%, transparent);
  padding: 7px 12px;
  border-radius: 999px;
}
.stage-domain::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-app);
  box-shadow: 0 0 10px var(--accent-app);
}

.stage h2 {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -1.8px;
  color: var(--stage-fg);
  margin: 18px 0 6px;
}
.stage .stage-tagline {
  font-size: 18px;
  line-height: 1.5;
  color: var(--accent-app);
  font-weight: 500;
  margin-bottom: 18px;
}
.stage p.stage-body {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--stage-dim);
  max-width: 46ch;
}

.stage-feats { margin-top: 26px; display: grid; gap: 11px; }
.stage-feats li {
  font-size: 14.5px;
  line-height: 1.55;
  color: #C6C6D2;
  padding-left: 24px;
  position: relative;
}
.stage-feats li::before {
  content: "";
  position: absolute;
  left: 0; top: 8px;
  width: 9px; height: 9px;
  border-radius: 2px;
  background: var(--accent-app);
  transform: rotate(45deg);
}

.stage-tech {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.stage-tech span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: .6px;
  color: var(--stage-dim);
  border: 1px solid var(--stage-line);
  border-radius: 5px;
  padding: 6px 10px;
}

.stage-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 32px;
  font-size: 14px;
  font-weight: 600;
  color: #07070B;
  background: var(--accent-app);
  padding: 14px 22px;
  border-radius: 10px;
  transition: transform .22s var(--ease), box-shadow .22s var(--ease), color .2s;
}
.stage-cta:hover {
  color: #07070B;
  transform: translateY(-3px);
  box-shadow: 0 14px 34px -12px var(--accent-app);
}
.stage-cta .arr { transition: transform .22s var(--ease); }
.stage-cta:hover .arr { transform: translateX(4px); }

.stage-cta.ghost {
  background: transparent;
  color: var(--stage-fg);
  border: 1px solid var(--stage-line);
  margin-left: 10px;
}
.stage-cta.ghost:hover { color: #fff; border-color: var(--accent-app); box-shadow: none; }

/* ============================================
   3. VISUAL COLUMN — device frames
   ============================================ */
.stage-visual { position: relative; will-change: transform; }

.frame {
  border-radius: 14px;
  border: 1px solid var(--stage-line);
  background: #0C0C13;
  overflow: hidden;
  box-shadow: 0 40px 90px -40px rgba(0, 0, 0, .9);
}
.frame-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--stage-line);
  background: rgba(255, 255, 255, .03);
}
.frame-bar i { width: 9px; height: 9px; border-radius: 50%; background: #2E2E38; display: block; }
.frame-bar .url {
  margin-left: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  color: var(--stage-dim);
  letter-spacing: .4px;
}
.frame img { width: 100%; height: auto; display: block; }

/* floating stat chip over a frame */
.chip {
  position: absolute;
  background: rgba(12, 12, 19, .88);
  backdrop-filter: blur(12px);
  border: 1px solid var(--stage-line);
  border-radius: 12px;
  padding: 13px 16px;
  box-shadow: 0 20px 50px -20px rgba(0, 0, 0, .9);
}
.chip b {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 19px;
  color: var(--accent-app);
  line-height: 1.1;
}
.chip small {
  font-size: 10.5px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--stage-dim);
}

/* ---- phone frame (timer) ---- */
.phone {
  width: min(300px, 78%);
  margin: 0 auto;
  aspect-ratio: 9 / 17.5;
  border-radius: 34px;
  border: 1px solid var(--stage-line);
  background: #05050A;
  padding: 9px;
  position: relative;
  box-shadow: 0 50px 110px -46px rgba(0, 0, 0, 1), inset 0 1px 0 rgba(255, 255, 255, .07);
}
.phone iframe {
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: 26px;
  display: block;
  background: #0a0a1a;
}
.phone::before {
  content: "";
  position: absolute;
  top: 18px; left: 50%;
  transform: translateX(-50%);
  width: 78px; height: 5px;
  border-radius: 3px;
  background: #16161F;
  z-index: 2;
}

/* pixel-art thumbnails row (timer themes) */
.pixel-row {
  display: flex;
  gap: 10px;
  margin-top: 22px;
  justify-content: center;
  flex-wrap: wrap;
}
.pixel-row img {
  width: 48px;
  height: 64px;                      /* source thumbs are 96×128 */
  image-rendering: pixelated;
  border: 1px solid var(--stage-line);
  border-radius: 8px;
  background: #0a0a1a;
  transition: transform .2s var(--ease), border-color .2s;
}
.pixel-row img:hover { transform: translateY(-4px) scale(1.06); border-color: var(--accent-app); }

/* ============================================
   4. RACE ARENA — scrolling parallax + sprites
   ============================================ */
.arena {
  position: relative;
  border-radius: 16px;
  border: 1px solid var(--stage-line);
  overflow: hidden;
  aspect-ratio: 16 / 11;
  background: #10121C;
  image-rendering: pixelated;
  box-shadow: 0 40px 90px -40px rgba(0, 0, 0, .9);
}
/* The backdrop is one wide strip tiled horizontally. It is scrolled by
   translating exactly one tile width — measured in JS into --tile, because the
   tile's rendered width depends on the arena's height, not its width. */
.arena-bg {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: calc(100% + var(--tile, 2000px));
  background-image: url('image/apps/race-bg-strip.webp');
  background-repeat: repeat-x;
  background-size: auto 100%;
  image-rendering: pixelated;
  animation: arena-scroll 26s linear infinite;
  will-change: transform;
}
@keyframes arena-scroll { to { transform: translate3d(calc(-1 * var(--tile, 2000px)), 0, 0); } }

.arena-vig {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7,7,11,.85), transparent 55%);
  pointer-events: none;
}

.lane {
  position: absolute;
  left: 0; right: 0;
  height: 25%;
  display: flex;
  align-items: flex-end;
}
.lane::after {                                   /* lane divider */
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: rgba(255, 255, 255, .10);
}
.lane.l1 { top: 4%; }
.lane.l2 { top: 29%; }
.lane.l3 { top: 54%; }

/* sprite: horizontal webp spritesheet stepped with CSS */
/* Each sprite sheet is 12 frames laid out horizontally. Sizing the background
   to 1200% makes one frame exactly one element wide; stepping background-position
   from 0% to 100%*12/11 then lands on all twelve frames and no others. */
.sprite {
  height: 82%;
  align-self: flex-end;
  margin-bottom: 5%;
  background-repeat: no-repeat;
  background-size: 1200% 100%;
  /* these frames are 154x200 and get drawn at roughly a third of that, so
     smooth downscaling reads better here than nearest-neighbour shimmer */
  image-rendering: auto;
  will-change: transform, background-position;
}
.sprite.knighty {
  aspect-ratio: 0.77;
  background-image: url('image/apps/race-knighty-move.webp');
  animation: sp12 .75s steps(12) infinite, run-a 9s linear infinite;
}
.sprite.gobbo {
  aspect-ratio: 0.76;
  background-image: url('image/apps/race-gobbo-move.webp');
  animation: sp12 .68s steps(12) infinite, run-b 11s linear infinite;
}
.sprite.toro {
  aspect-ratio: 0.805;
  background-image: url('image/apps/race-toro-move.webp');
  animation: sp12 .8s steps(12) infinite, run-c 13s linear infinite;
}
@keyframes sp12 { from { background-position-x: 0%; } to { background-position-x: 109.0909%; } }
@keyframes run-a { from { transform: translateX(-90px) } to { transform: translateX(112cqw) } }
@keyframes run-b { from { transform: translateX(-140px) } to { transform: translateX(112cqw) } }
@keyframes run-c { from { transform: translateX(-200px) } to { transform: translateX(112cqw) } }
.arena { container-type: inline-size; }

/* finish line */
.finish {
  position: absolute;
  top: 0; bottom: 0;
  right: 9%;
  width: 12px;
  background:
    repeating-conic-gradient(#F4F4F6 0 25%, #101018 0 50%) 0 0 / 12px 12px;
  opacity: .85;
}

/* star HUD */
.arena-hud {
  position: absolute;
  top: 12px; left: 12px;
  display: flex;
  gap: 8px;
  align-items: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 1.4px;
  color: #FFD75E;
  background: rgba(7, 7, 11, .7);
  border: 1px solid rgba(255, 215, 94, .3);
  padding: 6px 11px;
  border-radius: 6px;
  z-index: 3;
}

/* ============================================
   5. ORBIT UI MOCK

   Orbit's real interface is light — paper ground, serif wordmark, mono meta,
   outlined check-in buttons — so the mock is built light and floated on the
   dark stage rather than recoloured to match the stage.
   ============================================ */
.ui-mock {
  background: #FDFCFA;
  color: #16130F;
  padding: 22px 22px 12px;
}
.ui-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: #9A938C;
}
.ui-wordmark {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 30px;
  font-weight: 500;
  letter-spacing: -1px;
  line-height: 1.1;
  margin: 6px 0 2px;
}
.ui-sub { font-size: 13px; color: #6B635C; }

.ui-tabs {
  display: flex;
  gap: 18px;
  margin: 18px 0 4px;
  border-bottom: 1px solid rgba(0, 0, 0, .08);
}
.ui-tabs span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: #A39B94;
  padding-bottom: 9px;
}
.ui-tabs span.on { color: #16130F; box-shadow: inset 0 -2px 0 #16130F; }

.ui-row {
  display: grid;
  grid-template-columns: 8px 1fr 74px auto;
  gap: 12px;
  align-items: center;
  padding: 13px 2px;
  border-bottom: 1px solid rgba(0, 0, 0, .06);
  transition: background .25s var(--ease);
}
.ui-row:hover { background: rgba(0, 0, 0, .022); }
.ui-row:last-child { border-bottom: 0; }

.ui-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #3E9B6A;
}
.ui-dot.warn { background: #D8A13A; }

.ui-name { font-size: 14.5px; font-weight: 600; letter-spacing: -.2px; }
.ui-sub2 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: #A39B94;
  margin-top: 4px;
}

.ui-bar {
  height: 2px;
  background: rgba(0, 0, 0, .10);
  overflow: hidden;
}
.ui-bar i {
  display: block;
  height: 100%;
  background: #16130F;
  transform-origin: left;
  animation: grow 1.6s var(--ease) both;
}
@keyframes grow { from { transform: scaleX(0) } }

.ui-checkin {
  font-size: 11.5px;
  font-weight: 600;
  color: #16130F;
  border: 1px solid rgba(0, 0, 0, .18);
  border-radius: 999px;
  padding: 6px 12px;
  white-space: nowrap;
}

/* ============================================
   6. CAPABILITY OUTRO — "lights on"

   The same morph as the hero, run the other way: the page comes back up to
   paper on this block rather than at a seam between two blocks. --dim 0 is the
   dark end, 1 is paper, and the capability grid only resolves once the lights
   are actually up (--grid).
   ============================================ */
.capabilities {
  position: sticky;
  top: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: var(--section-y) 0;
  background-color: color-mix(in oklab, var(--paper) calc(var(--dim, 0) * 100%), #0B0910);
  color: color-mix(in oklab, var(--ink) calc(var(--dimfg, 0) * 100%), #F2F2F5);
}
.capabilities > .container { position: relative; z-index: 1; width: 100%; }

.capabilities .eyebrow {
  color: color-mix(in oklab, var(--accent) calc(var(--dimfg, 0) * 100%), #FFD75E);
}
.capabilities h2 { color: inherit; }
.capabilities .apps-lede { color: inherit; opacity: .72; }

/* the last stage's gold, going out as the room comes up */
.outro-glow {
  position: absolute;
  left: -10%;
  bottom: -20%;
  width: min(700px, 72vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: #FFA51E;
  filter: blur(120px);
  pointer-events: none;
  opacity: calc((1 - var(--dim, 0)) * 0.35);
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: color-mix(in oklab, currentColor 12%, transparent);
  border: 1px solid color-mix(in oklab, currentColor 12%, transparent);
  margin-top: 40px;
  opacity: var(--grid, 1);
}
.cap {
  background: color-mix(in oklab, var(--paper) calc(var(--dim, 0) * 100%), #0B0910);
  padding: 28px 24px;
  transition: background .25s ease;
}
.cap:hover { background: color-mix(in oklab, currentColor 5%, transparent); }
.cap h3 {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 19px;
  font-weight: 500;
  letter-spacing: -.4px;
  margin-bottom: 8px;
  color: inherit;
}
.cap p { font-size: 14px; line-height: 1.7; color: inherit; opacity: .72; }
.cap .n {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--ochre);
  display: block;
  margin-bottom: 14px;
}

/* ============================================
   7. MOTION / REVEAL
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s }
.reveal.d2 { transition-delay: .16s }
.reveal.d3 { transition-delay: .24s }

/* ============================================
   8. RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
  .stage { padding: 84px 0; }
  .stage-inner { grid-template-columns: 1fr; gap: 40px; }
  .stage.flip .stage-inner { direction: ltr; }
  .stage-visual { order: 2; }
  .lights { height: 190vh; }
  .apps-hero { min-height: 100svh; }

  /* the stacked capability grid outgrows a sticky viewport — see apps.js */
  .lights:last-of-type { height: auto; }
  .capabilities {
    position: static;
    min-height: 0;
    display: block;
    overflow: visible;
  }
  .outro-glow { display: none; }
}

@media (max-width: 520px) {
  .chip { display: none; }
  .stage-cta.ghost { margin-left: 0; margin-top: 10px; }
}

/* ============================================
   9. REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  /* No sticky morph: the tracks collapse and each block renders at rest —
     see .no-morph above for the colours that go with it. */
  .lights { height: auto; }
  .apps-hero,
  .capabilities {
    position: static;
    min-height: 0;
    display: block;
  }
  .apps-hero { padding: 132px 0 88px; }
  .hero-glow,
  .outro-glow { display: none; }

  .arena-bg,
  .sprite,
  .scroll-cue span,
  .ui-bar i { animation: none !important; }
  .sprite.knighty { transform: translateX(18%) }
  .sprite.gobbo   { transform: translateX(44%) }
  .sprite.toro    { transform: translateX(66%) }
  .ui-bar i { transform: scaleX(.7) }
  .reveal { opacity: 1; transform: none; transition: none; }
  .stage-glow { transform: none !important; }
}