/* Sulubeyn — App & Game Studio */
:root {
  --bg: #ffffff;
  --bg-alt: #f5f5f7;
  --surface: #ffffff;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --line: rgba(0, 0, 0, .08);
  --accent: #0071e3;
  --accent-2: #7a5cff;
  --accent-3: #ff4f8b;
  --nav-bg: rgba(255, 255, 255, .72);
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 8px 30px rgba(0,0,0,.06);
  --radius: 22px;
  --text-shadow: 0 1px 2px rgba(255,255,255,.6), 0 4px 24px rgba(255,255,255,.7);
  --btn-surface: #ffffff;
  --max: 1120px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #000000;
    --bg-alt: #0d0d0f;
    --surface: #161618;
    --text: #f5f5f7;
    --muted: #a1a1a6;
    --line: rgba(255, 255, 255, .1);
    --accent: #2997ff;
    --nav-bg: rgba(0, 0, 0, .66);
    --text-shadow: 0 1px 2px rgba(0,0,0,.5), 0 4px 28px rgba(0,0,0,.65);
    --btn-surface: #1d1d1f;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 30px rgba(0,0,0,.5);
  }
}
:root[data-theme="dark"] {
  --bg: #000000; --bg-alt: #0d0d0f; --surface: #161618; --text: #f5f5f7;
  --muted: #a1a1a6; --line: rgba(255,255,255,.1); --accent: #2997ff;
  --nav-bg: rgba(0,0,0,.66); --text-shadow: 0 1px 2px rgba(0,0,0,.5), 0 4px 28px rgba(0,0,0,.65); --btn-surface: #1d1d1f; --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 30px rgba(0,0,0,.5);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Inter", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* Language toggling: content is authored in both languages */
html[data-lang="tr"] .en, html[data-lang="en"] .tr { display: none !important; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 32px; } }

/* ---------- Nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  background: var(--nav-bg);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 52px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; letter-spacing: -.01em; }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2) 55%, var(--accent-3));
  display: grid; place-items: center; color: #fff; font-size: 15px; font-weight: 700;
}
.nav-links { display: flex; align-items: center; gap: 22px; font-size: 14px; }
.nav-links a { color: var(--text); opacity: .8; }
.nav-links a:hover { opacity: 1; text-decoration: none; }
@media (max-width: 640px) { .nav-links .hide-sm { display: none; } .nav-links { gap: 14px; } }
.lang {
  display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 2px;
  font-size: 12px; font-weight: 600;
}
.lang button {
  appearance: none; border: 0; background: none; color: var(--muted); cursor: pointer;
  padding: 4px 10px; border-radius: 999px; font: inherit;
}
.lang button[aria-pressed="true"] { background: var(--text); color: var(--bg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100svh; display: grid; place-items: center;
  padding: 120px 0 80px; overflow: hidden; text-align: center;
}
.hero-glow {
  position: absolute; inset: -20% -10% auto; height: 80%; z-index: 0; pointer-events: none;
  background:
    radial-gradient(40% 50% at 30% 40%, color-mix(in srgb, var(--accent) 28%, transparent), transparent 70%),
    radial-gradient(35% 45% at 70% 35%, color-mix(in srgb, var(--accent-2) 26%, transparent), transparent 70%),
    radial-gradient(30% 40% at 55% 70%, color-mix(in srgb, var(--accent-3) 18%, transparent), transparent 70%);
  filter: blur(40px);
  opacity: .9;
}
.hero-inner { position: relative; z-index: 3; }
.hero .eyebrow, .hero h1, .hero p.lead { text-shadow: var(--text-shadow); }
.hero h1 .grad { text-shadow: none; filter: drop-shadow(0 4px 22px rgba(0,0,0,.35)); }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 18px;
}
h1, h2, h3 { letter-spacing: -.025em; line-height: 1.07; margin: 0; }
.hero h1 {
  font-size: clamp(44px, 9vw, 104px); font-weight: 700;
}
.grad {
  background: linear-gradient(90deg, var(--accent), var(--accent-2) 50%, var(--accent-3));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead { font-size: clamp(19px, 2.4vw, 24px); color: var(--muted); max-width: 640px; margin: 24px auto 36px; }
.cta { display: inline-flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 999px;
  font-size: 16px; font-weight: 500; transition: transform .2s var(--ease), background .2s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 6px 20px color-mix(in srgb, var(--accent) 35%, transparent); }
.btn-ghost { color: var(--accent); background: var(--btn-surface); border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line)); box-shadow: var(--shadow); }

.orbit { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.orbit img {
  position: absolute; width: var(--s, 72px); height: var(--s, 72px); border-radius: 22.5%;
  box-shadow: var(--shadow); opacity: .95;
  margin: calc(var(--s, 72px) / -2) 0 0 calc(var(--s, 72px) / -2);
  animation: pop .9s var(--ease) backwards, float 7s ease-in-out infinite;
  animation-delay: var(--d, 0s), calc(var(--d, 0s) + .9s);
  will-change: transform;
}
@keyframes pop { from { opacity: 0; scale: .6; } to { opacity: .95; scale: 1; } }
@keyframes float { 0%,100% { translate: 0 0; } 50% { translate: 0 -12px; } }

.scroll-hint {
  position: absolute; bottom: 26px; left: 50%; translate: -50% 0; z-index: 2;
  width: 24px; height: 38px; border: 2px solid var(--muted); border-radius: 14px; opacity: .6;
}
.scroll-hint::after {
  content: ""; position: absolute; left: 50%; top: 7px; width: 4px; height: 8px; margin-left: -2px;
  background: var(--muted); border-radius: 2px; animation: wheel 1.8s infinite;
}
@keyframes wheel { 0% { opacity: 1; transform: translateY(0); } 100% { opacity: 0; transform: translateY(12px); } }

/* ---------- Sections ---------- */
section { padding: 110px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { text-align: center; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(34px, 5.5vw, 56px); font-weight: 700; }
.section-head p { color: var(--muted); font-size: 19px; margin: 14px auto 0; max-width: 620px; }

/* Statement: words light up while scrolling */
.statement { padding: 140px 0; }
.statement p {
  font-size: clamp(30px, 5vw, 56px); font-weight: 700; letter-spacing: -.03em; line-height: 1.15;
  max-width: 980px; margin: 0 auto; text-align: center;
}
.statement .w { opacity: .16; transition: opacity .35s; }
.statement .w.on { opacity: 1; }

/* Filter tabs */
.tabs { display: flex; justify-content: center; gap: 6px; margin: -24px 0 40px; flex-wrap: wrap; }
.tabs button {
  appearance: none; border: 1px solid var(--line); background: var(--surface); color: var(--text);
  padding: 8px 18px; border-radius: 999px; font: inherit; font-size: 15px; cursor: pointer;
  transition: background .2s, color .2s;
}
.tabs button[aria-pressed="true"] { background: var(--text); color: var(--bg); border-color: var(--text); }

/* App grid */
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.card {
  position: relative; display: flex; flex-direction: column; gap: 14px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; color: var(--text); box-shadow: var(--shadow);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease), opacity .3s;
}
.card:hover { text-decoration: none; transform: translateY(-6px); }
.card.hidden { display: none; }
.card-top { display: flex; align-items: center; gap: 14px; }
.card:has(.badge) .card-top { padding-right: 44px; }
.card img.icon { width: 64px; height: 64px; border-radius: 22.5%; border: 1px solid var(--line); flex: none; }
.card h3 { font-size: 18px; letter-spacing: -.01em; line-height: 1.25; }
.card .cat { font-size: 13px; color: var(--muted); margin-top: 2px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; flex: 1; }
.card .get {
  align-self: flex-start; display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 600; color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent); padding: 6px 14px; border-radius: 999px;
}
.badge {
  position: absolute; top: 16px; right: 16px; font-size: 11px; font-weight: 700; letter-spacing: .06em;
  color: #fff; background: linear-gradient(90deg, var(--accent), var(--accent-2)); padding: 3px 8px; border-radius: 999px;
}

/* Featured horizontal strip */
.strip { display: flex; gap: 28px; overflow: hidden; padding: 10px 0; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.strip-track { display: flex; gap: 28px; flex: none; animation: marquee 40s linear infinite; }
.strip img { width: 96px; height: 96px; border-radius: 22.5%; box-shadow: var(--shadow); flex: none; }
@keyframes marquee { to { transform: translateX(calc(-100% - 28px)); } }

/* Pillars */
.pillars { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.pillar { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; }
.pillar .ico { font-size: 30px; line-height: 1; margin-bottom: 18px; }
.pillar h3 { font-size: 22px; margin-bottom: 8px; }
.pillar p { margin: 0; color: var(--muted); font-size: 16px; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; text-align: center; margin-top: 70px; }
.stat b { display: block; font-size: clamp(40px, 7vw, 72px); letter-spacing: -.04em; line-height: 1; }
.stat span { color: var(--muted); font-size: 15px; }

/* Contact */
.contact { text-align: center; }
.contact h2 { font-size: clamp(36px, 6vw, 64px); }
.contact .mail { display: inline-block; font-size: clamp(22px, 3.6vw, 34px); font-weight: 600; margin: 26px 0 10px; letter-spacing: -.02em; word-break: break-all; }
.contact address { font-style: normal; color: var(--muted); }

/* Footer */
footer { border-top: 1px solid var(--line); padding: 28px 0 40px; font-size: 13px; color: var(--muted); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; align-items: center; }
footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
footer a { color: var(--muted); }

/* ---------- Scroll reveal ---------- */
.js .reveal { opacity: 0; transform: translateY(32px); transition: opacity .9s var(--ease), transform .9s var(--ease); transition-delay: var(--delay, 0s); }
.js .reveal.in { opacity: 1; transform: none; }
.js .reveal-scale { opacity: 0; transform: scale(.94); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.js .reveal-scale.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal, .js .reveal-scale, .orbit img { opacity: 1 !important; transform: none !important; }
  .statement .w { opacity: 1; }
}

/* ---------- Legal pages ---------- */
.legal { padding: 110px 0 80px; }
.legal .wrap { max-width: 780px; }
.legal h1 { font-size: clamp(36px, 6vw, 52px); margin-bottom: 10px; }
.legal .meta { color: var(--muted); font-size: 15px; margin: 0 0 28px; }
.legal h2 { font-size: 22px; letter-spacing: -.015em; margin: 44px 0 12px; }
.legal h3 { font-size: 18px; margin: 26px 0 8px; }
.legal p, .legal li { color: var(--text); font-size: 17px; }
.legal p { margin: 0 0 14px; }
.legal ul { padding-left: 22px; margin: 0 0 14px; }
.legal li { margin-bottom: 6px; }
.legal .note {
  background: var(--bg-alt); border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; margin: 22px 0;
  font-size: 15px;
}
.legal .note p:last-child { margin: 0; }
.toc { background: var(--bg-alt); border-radius: 16px; padding: 18px 22px; margin: 0 0 30px; font-size: 15px; }
.toc ol { margin: 8px 0 0; padding-left: 20px; columns: 2; column-gap: 28px; }
@media (max-width: 600px) { .toc ol { columns: 1; } }
.toc li { margin-bottom: 4px; break-inside: avoid; }