/* =====================================================================
   SITE RUSH STUDIO — MAIN STYLES
   Shared: variables, reset, typography, loader, nav, footer
   ===================================================================== */

/* ---------- ROOT TOKENS ---------- */
:root {
  --bg-black: #000000;
  --bg-deep:  #08080a;
  --bg-panel: #101012;
  --bg-soft:  #16161a;
  --border:   rgba(255,255,255,0.08);
  --border-strong: rgba(255,255,255,0.16);
  --text:     #f5f5f7;
  --text-muted: #9a9aa3;
  --text-dim:   #5a5a63;

  --accent:        #ff6a00;
  --accent-bright: #ff8a2a;
  --accent-deep:   #cc4f00;
  --accent-glow:   rgba(255,106,0,0.55);
  --accent-soft:   rgba(255,106,0,0.12);

  --glass: rgba(255,255,255,0.04);
  --glass-strong: rgba(255,255,255,0.07);

  --radius-sm: 10px;
  --radius:    18px;
  --radius-lg: 28px;
  --radius-xl: 44px;

  --ease:        cubic-bezier(.6,.01,.05,1);
  --ease-out:    cubic-bezier(.16,1,.3,1);
  --ease-soft:   cubic-bezier(.25,.46,.45,.94);

  --container: 1440px;
  --gutter: clamp(20px, 4vw, 56px);

  --font-display: "Inter Tight", "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-sans:    "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

/* ---------- RESET ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: auto;
}
body {
  background: var(--bg-black);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: -0.005em;
  overflow-x: hidden;
  min-height: 100vh;
}
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
input, textarea, select { font: inherit; color: inherit; background: transparent; border: 0; outline: none; cursor: text; }

::selection { background: var(--accent); color: #000; }

/* Visually hidden until focus — no layout change for sighted users */
.skip-link {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link:focus {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100000;
  width: auto;
  height: auto;
  margin: 0;
  padding: 12px 18px;
  clip: auto;
  overflow: visible;
  white-space: normal;
  background: var(--accent);
  color: #000;
  font-weight: 600;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 14px;
  letter-spacing: 0.01em;
}

/* ---------- SCROLLBAR ---------- */
html { scrollbar-color: var(--accent) transparent; scrollbar-width: thin; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent), var(--accent-deep));
  border-radius: 8px;
  box-shadow: 0 0 10px var(--accent-glow);
}

/* ---------- TYPOGRAPHY ---------- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin: 0;
}
.h-display {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(48px, 9.5vw, 168px);
  line-height: 0.92;
  letter-spacing: -0.045em;
}
.h-xl {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(40px, 6vw, 96px);
  line-height: 0.96;
  letter-spacing: -0.035em;
}
.h-lg {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(32px, 4.4vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.025em;
}
.h-md {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(22px, 2.4vw, 32px);
  line-height: 1.1;
  letter-spacing: -0.015em;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.eyebrow::before {
  content: "";
  width: 28px; height: 1px;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}
.muted { color: var(--text-muted); }
.accent { color: var(--accent); }

p { margin: 0 0 1em; }

/* Animated text reveal helpers */
.reveal-line { display: block; overflow: hidden; }
.reveal-line > span {
  display: inline-block;
  transform: translateY(110%);
  will-change: transform;
}

/* ---------- LAYOUT ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.section {
  position: relative;
  padding: clamp(80px, 12vw, 180px) 0;
}
.section-head {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 60px;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: clamp(40px, 6vw, 90px);
}

/* ---------- BUTTONS ---------- */
.btn {
  --bh: 56px;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  height: var(--bh);
  padding: 0 28px;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: transform .5s var(--ease-out), color .35s ease, background .35s ease, box-shadow .5s ease;
  overflow: hidden;
  isolation: isolate;
}
.btn .btn-arrow {
  width: 16px; height: 16px;
  transition: transform .5s var(--ease-out);
}
.btn:hover .btn-arrow { transform: translateX(4px); }

.btn--primary {
  color: #0a0a0c;
  background: linear-gradient(135deg, var(--accent-bright), var(--accent));
  box-shadow:
    0 10px 30px -8px var(--accent-glow),
    inset 0 0 0 1px rgba(255,255,255,0.18);
}
.btn--primary::before {
  content:"";
  position:absolute; inset:0;
  background: radial-gradient(120px 60px at var(--mx,50%) var(--my,50%), rgba(255,255,255,0.35), transparent 60%);
  opacity:0; transition: opacity .4s ease;
  z-index:-1;
}
.btn--primary:hover { box-shadow: 0 14px 40px -6px var(--accent-glow), inset 0 0 0 1px rgba(255,255,255,0.25); }
.btn--primary:hover::before { opacity:1; }

.btn--ghost {
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(8px);
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent-glow), 0 0 25px -8px var(--accent-glow);
}

/* ---------- GLASS PANELS ---------- */
.glass {
  background: var(--glass);
  border: 1px solid var(--border);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius);
}

/* ---------- LOADER (home first visit / refresh) ---------- */
html.is-loader-pending body {
  overflow: hidden;
}
html.is-loader-pending:not(.is-site-ready) body > *:not(.loader):not(script) {
  visibility: hidden;
}
html.is-loader-pending .loader {
  visibility: visible;
}

.loader {
  position: fixed;
  inset: 0;
  background: var(--bg-black);
  z-index: 99999;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.loader::before {
  content: "";
  position: absolute; inset: -20%;
  background:
    radial-gradient(40% 40% at 50% 60%, rgba(255,106,0,0.18), transparent 70%),
    radial-gradient(60% 60% at 50% 50%, rgba(255,106,0,0.08), transparent 70%);
  filter: blur(40px);
  animation: loaderPulse 4s ease-in-out infinite;
}
@keyframes loaderPulse {
  0%,100% { transform: scale(1); opacity: .9; }
  50%     { transform: scale(1.15); opacity: 1; }
}
.loader__inner {
  position: relative;
  text-align: center;
  z-index: 2;
}
.loader__mark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(28px, 4vw, 56px);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 22px;
}
.loader__mark .accent { color: var(--accent); text-shadow: 0 0 18px var(--accent-glow); }
.loader__bar {
  width: clamp(180px, 26vw, 320px);
  height: 1px;
  margin: 0 auto;
  background: rgba(255,255,255,0.1);
  position: relative;
  overflow: hidden;
}
.loader__bar span {
  position: absolute; left: 0; top: 0; height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-bright));
  box-shadow: 0 0 12px var(--accent-glow);
}
.loader__pct {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--text-muted);
}
.loader__caption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--text-dim);
  text-transform: uppercase;
}
.loader.is-out {
  pointer-events: none;
}

/* ---------- PAGE TRANSITION OVERLAY ---------- */
.page-transition {
  position: fixed;
  inset: 0;
  z-index: 8500;
  pointer-events: none;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
}
.page-transition span {
  background: var(--bg-deep);
  transform: translateY(-101%);
  display: block;
  height: 100vh;
}
.page-transition span:nth-child(odd) {
  background: var(--bg-black);
}

/* ---------- NAV ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  padding: 22px var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  transition: background .4s ease, backdrop-filter .4s ease, padding .4s ease;
}
.nav.is-scrolled {
  background: rgba(8,8,10,0.55);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding-top: 14px;
  padding-bottom: 14px;
}
.nav__logo {
  justify-self: start;
  grid-column: 1;
  display: inline-flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 10px;
  min-width: 0;
  max-width: 100%;
  white-space: nowrap;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.01em;
}
.nav__logo > span {
  white-space: nowrap;
  line-height: 1;
}
.nav__logo-img {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  object-fit: contain;
  display: block;
}
.nav__links {
  grid-column: 2;
  justify-self: center;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
  max-width: 100%;
}
.nav__links a {
  position: relative;
  padding: 10px 16px;
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  border-radius: 999px;
  transition: color .35s ease;
}
.nav__links a::after {
  content:"";
  position: absolute;
  left: 16px; right: 16px; bottom: 8px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s var(--ease-out);
}
.nav__links a.is-active,
.nav__links a:hover { color: var(--text); }
.nav__links a.is-active::after,
.nav__links a:hover::after { transform: scaleX(1); }
.nav__cta { display: inline-flex; grid-column: 3; justify-self: end; }

.nav__burger {
  display: none;
  grid-column: 3;
  justify-self: end;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  position: relative;
  z-index: 210;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.nav__burger span {
  position: absolute;
  left: 12px; right: 12px;
  height: 1.5px;
  background: var(--text);
  transition: transform .4s var(--ease-out), opacity .3s ease;
}
.nav__burger span:nth-child(1) { top: 17px; }
.nav__burger span:nth-child(2) { bottom: 17px; }
.nav.is-open .nav__burger span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav.is-open .nav__burger span:nth-child(2) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- MOBILE MENU ---------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 190;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .35s var(--ease-out), visibility .35s var(--ease-out);
}
.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.mobile-menu__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.mobile-menu__panel {
  position: relative;
  z-index: 1;
  margin-top: 72px;
  margin-left: auto;
  width: min(100%, 420px);
  max-height: calc(100dvh - 72px);
  display: flex;
  flex-direction: column;
  padding: 20px var(--gutter) max(28px, env(safe-area-inset-bottom));
  background: linear-gradient(165deg, rgba(14, 14, 16, 0.98), rgba(6, 6, 8, 0.98));
  border-left: 1px solid var(--border);
  box-shadow: -24px 0 80px rgba(0, 0, 0, 0.55);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateX(100%);
  transition: transform .4s var(--ease-out);
}
.mobile-menu.is-open .mobile-menu__panel {
  transform: translateX(0);
}
.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}
.mobile-menu__link {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 14px 16px;
  margin: 0 -4px;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: clamp(22px, 5.8vw, 32px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text);
  border: 1px solid transparent;
  transition: color .25s ease, background .25s ease, border-color .25s ease;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.mobile-menu__link:hover,
.mobile-menu__link:focus-visible {
  color: var(--accent);
  background: rgba(255, 106, 0, 0.06);
  border-color: rgba(255, 106, 0, 0.12);
}
.mobile-menu__link:active {
  background: rgba(255, 106, 0, 0.1);
  transform: scale(0.99);
}
.mobile-menu__link.is-active {
  color: var(--accent);
  background: rgba(255, 106, 0, 0.08);
  border-color: rgba(255, 106, 0, 0.2);
}
.mobile-menu__socials {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.mobile-menu__social {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: color .25s ease, border-color .25s ease, background .25s ease;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.mobile-menu__social:hover,
.mobile-menu__social:focus-visible {
  color: var(--accent);
  border-color: rgba(255, 106, 0, 0.35);
  background: rgba(255, 106, 0, 0.06);
}

/* ---------- FOOTER ---------- */
.footer {
  position: relative;
  padding: clamp(80px, 10vw, 140px) 0 40px;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, transparent, rgba(255,106,0,0.04));
  overflow: hidden;
}
.footer::before {
  content:"";
  position:absolute;
  left:50%; top:0;
  width: 80%; height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  box-shadow: 0 0 24px var(--accent-glow);
}
.footer__giant {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(60px, 16vw, 280px);
  line-height: 0.85;
  letter-spacing: -0.05em;
  text-align: center;
  background: linear-gradient(180deg, #fff 0%, #404048 60%, transparent 95%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin: 0;
  padding-bottom: 0.05em;
  user-select: none;
}
.footer__rows {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 40px;
  padding: 60px 0 40px;
}
.footer__col h5 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 18px;
  font-weight: 500;
}
.footer__col a, .footer__col p {
  display: block;
  font-size: 14px;
  color: var(--text-muted);
  padding: 4px 0;
  transition: color .3s ease, transform .4s var(--ease-out);
}
.footer__col a:hover { color: var(--accent); transform: translateX(4px); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  border-top: 1px solid var(--border);
  padding-top: 28px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* ---------- AMBIENT BACKGROUND PARTICLES ---------- */
.bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.bg-grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.07;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.55 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

/* ---------- VIGNETTE ---------- */
.vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  background:
    radial-gradient(120% 80% at 50% 50%, transparent 60%, rgba(0,0,0,0.6) 100%);
}

/* ---------- AURORA / GLOWS ---------- */
.aurora {
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
  pointer-events: none;
  opacity: 0.6;
}

/* ---------- MARQUEE ---------- */
.marquee {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, transparent, rgba(255,106,0,0.04), transparent);
  padding: 26px 0;
}
.marquee__track {
  display: inline-flex;
  white-space: nowrap;
  gap: 56px;
  padding-right: 56px;
  will-change: transform;
}
.marquee__item {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 42px);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 56px;
}
.marquee__item::after {
  content: "";
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 16px var(--accent-glow);
}
.marquee__item.is-outline {
  -webkit-text-stroke: 1px var(--text);
  color: transparent;
}

/* ---------- COMMON ANIMATIONS ---------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- RESPONSIVE NAV ---------- */
@media (max-width: 880px) {
  .nav {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
  }
  .nav__links, .nav__cta { display: none; }
  .nav__burger {
    display: inline-flex;
    grid-column: 2;
  }
  .nav__logo {
    font-size: clamp(13px, 3.6vw, 16px);
    gap: 8px;
  }
}

@media (max-width: 720px) {
  .footer__rows { grid-template-columns: repeat(2, 1fr); }
  .footer__bottom { font-size: 10px; }
}

/* ---------- REDUCED MOTION ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}