/* =========================================================
   JustToTop — indie app studio, Cairo
   Custom CSS · oklch tokens · dark default + light
   ========================================================= */

:root {
  /* dark (default) — warm night, sand + lapis */
  --background: oklch(0.155 0.014 62);
  --foreground: oklch(0.97 0.008 80);
  --surface: oklch(0.195 0.016 62);
  --card: oklch(0.215 0.018 62);
  --muted-foreground: oklch(0.7 0.02 72);
  --border: oklch(1 0 0 / 11%);
  --border-strong: oklch(1 0 0 / 19%);
  --accent: oklch(0.83 0.16 72);          /* sand / gold */
  --accent-2: oklch(0.68 0.14 232);       /* lapis */
  --accent-foreground: oklch(0.19 0.03 62);
  --danger: oklch(0.63 0.2 27);

  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --wrap: 78rem;
  --wrap-narrow: 56rem;
  --pad: 1.5rem;
  --radius: 18px;
}

html:not(.dark) {
  --background: oklch(0.985 0.008 80);
  --foreground: oklch(0.19 0.025 62);
  --surface: oklch(0.955 0.012 78);
  --card: oklch(1 0 0);
  --muted-foreground: oklch(0.49 0.025 68);
  --border: oklch(0.24 0.03 62 / 13%);
  --border-strong: oklch(0.24 0.03 62 / 22%);
  --accent: oklch(0.72 0.15 62);
  --accent-2: oklch(0.55 0.15 240);
  --accent-foreground: oklch(0.99 0.01 80);
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-display);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  transition: background-color .4s ease, color .4s ease;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }
ol, ul { list-style: none; padding: 0; }
::selection { background: var(--accent); color: var(--accent-foreground); }

.mono { font-family: var(--font-mono); }
.muted { color: var(--muted-foreground); }
.hl {
  /* gold most of the way, lapis only in the tail — keeps the midpoint from going grey */
  background: linear-gradient(102deg in oklab, var(--accent) 38%, var(--accent-2) 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--pad); }
.wrap--narrow { max-width: var(--wrap-narrow); }
.section { padding-block: clamp(4.5rem, 11vw, 9rem); position: relative; }
.section--surface { background: var(--surface); border-block: 1px solid var(--border); }
.hairline { display: block; height: 1px; width: 100%; background: var(--border); }

.skip { position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--foreground); color: var(--background); padding: .6rem 1rem;
  font-family: var(--font-mono); font-size: .75rem; }
.skip:focus { left: 1rem; top: 1rem; }

/* ---------- Background ---------- */
.bg-grid {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(to right, var(--border) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border) 1px, transparent 1px);
  background-size: 64px 64px; opacity: .45;
  mask-image: radial-gradient(ellipse 85% 55% at 50% 0%, #000 5%, transparent 72%);
}
.bg-glow {
  position: fixed; top: -32vh; left: 50%; transform: translateX(-50%);
  width: 130vw; height: 85vh; z-index: -1; pointer-events: none;
  background:
    radial-gradient(38% 48% at 26% 42%, color-mix(in oklab, var(--accent) 34%, transparent), transparent 70%),
    radial-gradient(42% 52% at 72% 32%, color-mix(in oklab, var(--accent-2) 30%, transparent), transparent 70%);
  filter: blur(64px); opacity: .5;
  animation: glow 18s ease-in-out infinite alternate;
}
@keyframes glow {
  from { transform: translateX(-53%) translateY(0) rotate(0deg); opacity: .38; }
  to   { transform: translateX(-47%) translateY(4vh) rotate(7deg); opacity: .62; }
}

/* ---------- Atoms ---------- */
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex: none;
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 26%, transparent); }

.kicker { font-size: 11px; text-transform: uppercase; letter-spacing: .22em; color: var(--muted-foreground); }
.badge {
  display: inline-flex; align-items: center; gap: .5rem;
  border: 1px solid var(--border-strong); border-radius: 999px; padding: .4rem .8rem;
  font-size: 11px; text-transform: uppercase; letter-spacing: .16em; color: var(--muted-foreground);
  background: color-mix(in oklab, var(--card) 60%, transparent); backdrop-filter: blur(8px);
}
.arrow { display: inline-block; transition: transform .25s ease; }
.arrow--lg { font-size: 1.3em; }
.chip { border: 1px solid var(--border); border-radius: 7px; padding: .22rem .55rem;
  font-size: 10px; text-transform: uppercase; letter-spacing: .14em; color: var(--muted-foreground); }
.chips { margin-top: 1.25rem; display: flex; flex-wrap: wrap; gap: .4rem; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: .5rem; border-radius: 11px;
  font-size: 12px; text-transform: uppercase; letter-spacing: .14em; padding: .6rem .9rem;
  border: 1px solid transparent; transition: opacity .2s, transform .2s, box-shadow .2s; }
.btn--solid { background: var(--foreground); color: var(--background); }
.btn--solid:hover { opacity: .93; box-shadow: 0 10px 34px -10px color-mix(in oklab, var(--accent) 55%, transparent); }
.btn--solid:hover .arrow { transform: translate(2px, -2px); }
.btn--lg { padding: .85rem 1.3rem; }
.link-arrow { font-size: 12px; text-transform: uppercase; letter-spacing: .16em; color: var(--muted-foreground); transition: color .2s; }
.link-arrow:hover { color: var(--foreground); }

/* ---------- Top bar ---------- */
.topbar { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid var(--border);
  background: color-mix(in oklab, var(--background) 80%, transparent); backdrop-filter: blur(14px); }
.topbar__inner { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.brand { font-size: 17px; font-weight: 700; letter-spacing: -.03em; }
.brand__hl { color: var(--accent); }
.brand__mark { display: inline-block; margin-left: .35rem; font-size: .55em; color: var(--accent-2);
  transform: translateY(-.35em); }
.nav { display: none; align-items: center; gap: 1.75rem; }
.nav__link { font-size: 12px; text-transform: uppercase; letter-spacing: .16em; color: var(--muted-foreground); transition: color .2s; }
.nav__link:hover { color: var(--foreground); }
.topbar__right { display: flex; align-items: center; gap: .6rem; }
.theme-btn { width: 36px; height: 36px; border-radius: 11px; border: 1px solid var(--border-strong);
  background: var(--card); display: inline-flex; align-items: center; justify-content: center; transition: border-color .2s; }
.theme-btn:hover { border-color: var(--foreground); }
.theme-btn__icon { width: 14px; height: 14px; border-radius: 50%; background: var(--foreground);
  box-shadow: inset -4px -4px 0 0 var(--card); transition: box-shadow .3s, background .3s; }
.dark .theme-btn__icon { box-shadow: inset 0 0 0 0 var(--card); background: var(--accent); }
.topbar__right .btn--solid { display: none; }

/* ---------- Hero ---------- */
.hero { padding-block: clamp(3.5rem, 9vw, 6rem) clamp(3rem, 7vw, 5rem); }
.hero__inner { display: grid; grid-template-columns: 1fr; gap: clamp(2.5rem, 6vw, 4rem); align-items: center; }
.hero__title { margin-top: 1.5rem; font-size: clamp(2.5rem, 6.6vw, 4.7rem); font-weight: 700;
  line-height: 1.03; letter-spacing: -.04em; text-wrap: balance; }
.hero__lede { margin-top: 1.75rem; max-width: 42ch; font-size: clamp(1.05rem, 2vw, 1.22rem);
  line-height: 1.6; color: var(--muted-foreground); }
.hero__cta { margin-top: 2.25rem; display: flex; flex-wrap: wrap; align-items: center; gap: 1.25rem; }
.hero__stores { margin-top: 2.25rem; display: flex; flex-wrap: wrap; align-items: center; gap: 1.25rem;
  font-size: 11px; text-transform: uppercase; letter-spacing: .16em; color: var(--muted-foreground); }
.store { display: inline-flex; align-items: center; gap: .5rem; }
.store__icon { width: 12px; height: 12px; flex: none; background: var(--accent-2);
  clip-path: polygon(50% 0, 100% 100%, 0 100%); }
.store__icon--play { background: var(--accent); clip-path: polygon(12% 0, 100% 50%, 12% 100%); }

/* ---------- Release pipeline card ---------- */
.ship { border: 1px solid var(--border-strong); border-radius: var(--radius); overflow: hidden;
  background: color-mix(in oklab, var(--card) 78%, transparent); backdrop-filter: blur(14px);
  box-shadow: 0 34px 84px -34px color-mix(in oklab, var(--accent-2) 50%, transparent); }
.ship__bar { display: flex; align-items: center; gap: .6rem; padding: .7rem .95rem;
  border-bottom: 1px solid var(--border); font-size: 11px; color: var(--muted-foreground); }
.ship__dots { display: inline-flex; gap: 5px; }
.ship__dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--border-strong); }
.ship__name { letter-spacing: .04em; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ship__state { margin-left: auto; display: inline-flex; align-items: center; gap: .4rem;
  text-transform: uppercase; letter-spacing: .16em; flex: none; }
.ship__body { padding: 1.2rem .95rem 1.1rem; }
.ship__steps { display: grid; gap: .6rem; font-size: 12.5px; }
.ship__step { display: flex; align-items: center; gap: .7rem; color: var(--muted-foreground);
  opacity: .5; transition: opacity .35s ease, color .35s ease; }
.ship__step .tick { width: 17px; height: 17px; flex: none; border-radius: 6px;
  border: 1px solid var(--border-strong); position: relative; transition: background .35s, border-color .35s; }
.ship__step .tick::after { content: ""; position: absolute; inset: 0; margin: auto;
  width: 5px; height: 9px; border: solid var(--accent-foreground); border-width: 0 2px 2px 0;
  transform: rotate(45deg) translate(-1px, -1px) scale(.4); opacity: 0; transition: opacity .25s, transform .25s; }
.ship__step.is-active { opacity: 1; color: var(--foreground); }
.ship__step.is-active .tick { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 20%, transparent); }
.ship__step.is-done { opacity: 1; color: var(--foreground); }
.ship__step.is-done .tick { background: var(--accent); border-color: var(--accent); }
.ship__step.is-done .tick::after { opacity: 1; transform: rotate(45deg) translate(-1px, -1px) scale(1); }
.ship__meter { margin-top: 1.15rem; height: 4px; border-radius: 999px; background: var(--border); overflow: hidden; }
.ship__meter span { display: block; height: 100%; width: 25%; border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width .6s cubic-bezier(.4,.9,.3,1); }
.ship__note { margin-top: .8rem; font-size: 12px; color: var(--muted-foreground); min-height: 1.6em; }
.ship__foot { display: flex; align-items: center; justify-content: space-between; gap: .6rem;
  padding: .7rem .95rem; border-top: 1px solid var(--border); font-size: 11px;
  text-transform: uppercase; letter-spacing: .14em; color: var(--muted-foreground); }
.ship__foot-r { color: var(--accent); }

/* ---------- Marquee ---------- */
.marquee { border-block: 1px solid var(--border); overflow: hidden; background: color-mix(in oklab, var(--surface) 60%, transparent); }
.marquee__track { display: flex; align-items: center; gap: 1.75rem; width: max-content;
  padding-block: 1.05rem; animation: marquee 42s linear infinite; will-change: transform;
  font-size: clamp(13px, 1.4vw, 15px); text-transform: uppercase; letter-spacing: .12em; color: var(--muted-foreground); }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__item { white-space: nowrap; }
.marquee__sep { color: var(--accent); font-size: .7em; }
/* 3 identical copies → shift by exactly one copy for a seamless, gapless loop */
@keyframes marquee { to { transform: translateX(-33.3333%); } }

/* ---------- Section head ---------- */
.head { max-width: 46rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.head__title { margin-top: 1.25rem; font-size: clamp(2rem, 4.5vw, 3.3rem); font-weight: 700;
  line-height: 1.06; letter-spacing: -.035em; text-wrap: balance; }
.head__sub { margin-top: 1.25rem; font-size: clamp(1rem, 2vw, 1.12rem); color: var(--muted-foreground); max-width: 50ch; }

/* ---------- Cards (what we do) ---------- */
.cards { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.card { position: relative; border: 1px solid var(--border); border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2rem); background: var(--card); overflow: hidden;
  transition: border-color .25s, transform .25s; }
.card::before { content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: linear-gradient(140deg, color-mix(in oklab, var(--accent) 65%, transparent), transparent 46%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity .25s; }
.card:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.card:hover::before { opacity: 1; }
.card__n { font-size: 12px; color: var(--accent); }
.card__t { margin-top: .9rem; font-size: clamp(1.4rem, 2.5vw, 1.7rem); font-weight: 600; letter-spacing: -.025em; }
.card__d { margin-top: .75rem; color: var(--muted-foreground); }

/* ---------- Apps ---------- */
.apps { display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--border);
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.app { padding: clamp(1.5rem, 3vw, 1.9rem); background: var(--surface); transition: background .25s; }
.app:hover { background: var(--card); }
.app__n { font-size: 11px; color: var(--accent-2); letter-spacing: .14em; }
.app__t { margin-top: .7rem; font-size: clamp(1.15rem, 2.2vw, 1.35rem); font-weight: 600; letter-spacing: -.02em; }
.app__d { margin-top: .55rem; font-size: .95rem; color: var(--muted-foreground); }

.store-grid { margin-top: 1rem; display: grid; grid-template-columns: 1fr; gap: 1rem; }
.store-card { border: 1px solid var(--border); border-radius: var(--radius); padding: clamp(1.4rem, 3vw, 1.8rem);
  background: var(--card); transition: border-color .25s, transform .25s; }
.store-card:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.store-card__tag { font-size: 11px; color: var(--accent); letter-spacing: .1em; }
.store-card__t { margin-top: .75rem; font-size: clamp(1.15rem, 2.2vw, 1.3rem); font-weight: 600; letter-spacing: -.02em; }
.store-card__d { margin-top: .55rem; font-size: .95rem; color: var(--muted-foreground); }

/* ---------- AI ---------- */
.ai-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.ai-card { position: relative; border: 1px solid var(--border); border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 1.9rem); background: var(--card); transition: border-color .25s, transform .25s; }
.ai-card:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.ai-card__tag { font-size: 11px; color: var(--accent-2); letter-spacing: .1em; }
.ai-card__t { margin-top: .8rem; font-size: clamp(1.25rem, 2.5vw, 1.5rem); font-weight: 600; letter-spacing: -.025em; }
.ai-card__d { margin-top: .6rem; color: var(--muted-foreground); }

/* ---------- Process ---------- */
.steps { display: grid; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.step { display: flex; gap: 1.25rem; align-items: flex-start; padding: clamp(1.5rem, 3vw, 2rem); background: var(--background); }
.step__n { flex: none; font-size: 12px; color: var(--accent); padding-top: .35rem; }
.step__t { font-size: clamp(1.25rem, 2.5vw, 1.55rem); font-weight: 600; letter-spacing: -.025em; }
.step__d { margin-top: .5rem; color: var(--muted-foreground); }

/* ---------- Studio ---------- */
.why { display: grid; grid-template-columns: 1fr; gap: 2rem; }
.why__t { font-size: clamp(1.15rem, 2.5vw, 1.4rem); font-weight: 600; letter-spacing: -.02em; }
.why__t::before { content: "▲"; color: var(--accent); font-size: .62em; margin-right: .55rem; vertical-align: .1em; }
.why__d { margin-top: .5rem; color: var(--muted-foreground); }

.facts { margin-top: clamp(2.5rem, 5vw, 3.5rem); display: grid; grid-template-columns: 1fr; gap: 1px;
  background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.fact { display: grid; gap: .35rem; padding: 1.25rem 1.4rem; background: var(--card); }
.fact__k { font-size: 10px; text-transform: uppercase; letter-spacing: .18em; color: var(--muted-foreground); }
.fact__v { font-size: .98rem; }

.stack { margin-top: clamp(2.5rem, 5vw, 3.5rem); }
.stack__row { margin-top: 1rem; display: flex; flex-wrap: wrap; gap: .4rem; }
.stack .chip { font-size: 12px; letter-spacing: .04em; text-transform: none;
  color: color-mix(in oklab, var(--foreground) 78%, transparent); }

/* ---------- Contact ---------- */
.section--contact { padding-block: clamp(4.5rem, 11vw, 8rem); background: var(--surface); border-top: 1px solid var(--border); }
.contact__title { margin-top: 1.5rem; font-size: clamp(2.1rem, 5.6vw, 4.2rem); font-weight: 700;
  line-height: 1.04; letter-spacing: -.04em; text-wrap: balance; }
.contact__lede { margin-top: 1.5rem; max-width: 44ch; font-size: clamp(1.05rem, 2vw, 1.18rem); color: var(--muted-foreground); }
.contact__grid { margin-top: clamp(2.5rem, 5vw, 4rem); display: grid; grid-template-columns: 1fr; gap: 2.5rem; align-items: start; }
.contact__mail { display: inline-flex; align-items: baseline; gap: .6rem; font-size: clamp(1.5rem, 4.6vw, 2.5rem);
  font-weight: 700; letter-spacing: -.03em; word-break: break-word; }
.contact__mail:hover .arrow { transform: translate(3px, -3px); }
.contact__note { margin-top: 1.1rem; max-width: 34ch; color: var(--muted-foreground); font-size: .96rem; }
.contact__meta { margin-top: 1.75rem; display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; }
.contact__meta .mono { font-size: 11px; text-transform: uppercase; letter-spacing: .16em; }

.contact__form { display: grid; gap: 1rem; border: 1px solid var(--border); border-radius: var(--radius);
  padding: clamp(1.5rem, 4vw, 2rem); background: var(--card); }
.field { display: grid; gap: .4rem; }
.field__label { font-size: 10px; text-transform: uppercase; letter-spacing: .16em; color: var(--muted-foreground); }
.contact__form input, .contact__form textarea {
  width: 100%; font-family: var(--font-display); font-size: 1rem; color: var(--foreground);
  background: var(--background); border: 1px solid var(--border-strong); border-radius: 11px; padding: .75rem .85rem;
  transition: border-color .2s, box-shadow .2s; }
.contact__form input:focus, .contact__form textarea:focus { outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 26%, transparent); }
.contact__form textarea { resize: vertical; }
.contact__form .btn { justify-content: center; margin-top: .25rem; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.note { border-radius: 11px; padding: .7rem .85rem; font-size: 11px; text-transform: uppercase; letter-spacing: .1em; }
.note--ok { background: color-mix(in oklab, var(--accent) 22%, transparent); border: 1px solid var(--accent); }
.note--err { background: color-mix(in oklab, var(--danger) 18%, transparent); border: 1px solid var(--danger); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); padding-block: 3.5rem; }
.footer__row { display: flex; flex-direction: column; gap: 1.5rem; align-items: flex-start; margin-bottom: 2.5rem; }
.footer__links { display: flex; flex-wrap: wrap; gap: 1.25rem; font-size: 11px; text-transform: uppercase;
  letter-spacing: .16em; color: var(--muted-foreground); }
.footer__links a:hover { color: var(--foreground); }
.footer__copy { font-size: 11px; text-transform: uppercase; letter-spacing: .16em; color: var(--muted-foreground); }
.footer__made { margin-top: 2.5rem; font-size: 11px; text-transform: uppercase; letter-spacing: .18em; color: var(--muted-foreground); }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .bg-glow, .marquee__track { animation: none; }
  .ship__meter span, .ship__step, .ship__step .tick { transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (min-width: 720px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
  .apps { grid-template-columns: repeat(2, 1fr); }
  .store-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-grid { grid-template-columns: repeat(2, 1fr); }
  .why { grid-template-columns: repeat(3, 1fr); }
  .facts { grid-template-columns: repeat(2, 1fr); }
  .contact__grid { grid-template-columns: 1fr 1fr; gap: 4rem; }
  .footer__row { flex-direction: row; align-items: center; justify-content: space-between; }
}
@media (min-width: 420px) {
  .topbar__right .btn--solid { display: inline-flex; }
}
@media (min-width: 768px) {
  .nav { display: flex; }
}
@media (min-width: 960px) {
  .hero__inner { grid-template-columns: 1.05fr .95fr; }
  .apps { grid-template-columns: repeat(4, 1fr); }
  .store-grid { grid-template-columns: repeat(4, 1fr); }
  .facts { grid-template-columns: repeat(4, 1fr); }
}