/* ==========================================================================
   PS2 STUDIO — layout.css
   Navigation, hero, marquee, footer, ambient background field.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. NAVIGATION
   -------------------------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--t-mid) var(--e-out),
              box-shadow var(--t-mid) var(--e-out),
              transform var(--t-mid) var(--e-out);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: 100%;
}

/* Solid state once the page has scrolled */
.nav.is-stuck {
  background: rgba(10, 11, 13, 0.72);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  box-shadow: inset 0 -1px 0 var(--line-ink);
}
/* Hide on scroll-down, reveal on scroll-up */
.nav.is-hidden { transform: translateY(-102%); }
.nav.is-open { background: transparent; box-shadow: none; }

/* Logo mark ---------------------------------------------------------------- */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  line-height: 1;
  color: var(--on-ink);
}
.logo__mark {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  font-size: 1.45rem;
  font-weight: 600;
  letter-spacing: -0.06em;
}
.logo__mark::after {
  content: "";
  position: absolute;
  right: -7px;
  bottom: 0.28em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--signal);
  transition: transform var(--t-mid) var(--e-out);
}
.logo:hover .logo__mark::after { transform: translateY(-4px) scale(1.15); }
.logo__word {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--on-ink-mute);
  padding-left: 0.5rem;
  border-left: 1px solid var(--line-ink);
  align-self: center;
  padding-block: 0.15rem;
}

/* Desktop links ------------------------------------------------------------ */
.nav__links { display: none; }
@media (min-width: 1040px) {
  .nav__links {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem;
    border: 1px solid var(--line-ink);
    border-radius: 100px;
    background: rgba(255, 255, 255, 0.02);
  }
  .nav__link {
    position: relative;
    padding: 0.55rem 0.95rem;
    border-radius: 100px;
    font-size: 0.82rem;
    font-weight: 450;
    color: var(--on-ink-mute);
    transition: color var(--t-fast) var(--e-out), background var(--t-fast) var(--e-out);
  }
  .nav__link:hover { color: var(--on-ink); background: rgba(255, 255, 255, 0.06); }
  .nav__link.is-active { color: var(--on-ink); }
  .nav__link.is-active::before {
    content: "";
    position: absolute;
    left: 0.95rem;
    bottom: 0.28rem;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--signal);
  }
}

.nav__actions { display: flex; align-items: center; gap: 0.75rem; }
.nav__cta { display: none; }
@media (min-width: 640px) { .nav__cta { display: inline-flex; } }

/* Menu button -------------------------------------------------------------- */
.menu-btn {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 0.9rem;
  border-radius: 100px;
  border: 1px solid var(--line-ink);
  color: var(--on-ink);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: border-color var(--t-fast) var(--e-out);
}
.menu-btn:hover { border-color: rgba(245, 244, 241, 0.35); }
@media (min-width: 1040px) { .menu-btn { display: none; } }

.menu-btn__bars { display: grid; gap: 4px; width: 16px; }
.menu-btn__bars span {
  display: block;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--t-mid) var(--e-out), opacity var(--t-fast) linear;
}
.menu-btn[aria-expanded="true"] .menu-btn__bars span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.menu-btn[aria-expanded="true"] .menu-btn__bars span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] .menu-btn__bars span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* Full-screen menu --------------------------------------------------------- */
.menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--ink);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding-top: calc(var(--nav-h) + clamp(1.5rem, 6vh, 4rem));
  padding-bottom: clamp(1.5rem, 5vh, 3rem);
  clip-path: inset(0 0 100% 0);
  transition: clip-path 0.7s var(--e-out);
  visibility: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.menu.is-open { clip-path: inset(0 0 0 0); visibility: visible; }

.menu__list { display: grid; gap: clamp(0.1rem, 1vw, 0.5rem); }
.menu__item { overflow: hidden; border-bottom: 1px solid var(--line-ink-soft); }
.menu__link {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding-block: clamp(0.5rem, 1.6vh, 0.9rem);
  font-size: clamp(1.9rem, 8vw, 3.4rem);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: var(--on-ink);
  transform: translateY(110%);
  opacity: 0;
  transition: transform 0.75s var(--e-out) var(--d, 0ms),
              opacity 0.5s linear var(--d, 0ms),
              color var(--t-fast) var(--e-out);
}
.menu.is-open .menu__link { transform: translateY(0); opacity: 1; }
.menu__link:hover { color: var(--signal); }
.menu__link .num { font-size: 0.6rem; color: var(--on-ink-faint); letter-spacing: 0.1em; }

.menu__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  align-items: end;
  padding-top: 2rem;
  color: var(--on-ink-mute);
  font-size: var(--fs-small);
}
.menu__foot a:hover { color: var(--signal); }

/* Scroll progress ---------------------------------------------------------- */
.progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 100%;
  z-index: 101;
  transform-origin: 0 50%;
  transform: scaleX(var(--p, 0));
  background: linear-gradient(90deg, var(--signal), var(--signal-soft));
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   2. AMBIENT FIELD — grid lines, orbs, grain
   -------------------------------------------------------------------------- */
.field {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}
.field__grid {
  position: absolute;
  inset: -1px;
  background-image:
    linear-gradient(to right, var(--line-ink-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-ink-soft) 1px, transparent 1px);
  background-size: clamp(70px, 9vw, 130px) clamp(70px, 9vw, 130px);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 20%, transparent 78%);
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 20%, transparent 78%);
  opacity: 0.9;
}
.field__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.5;
  will-change: transform;
}
.field__orb--1 {
  width: min(46vw, 620px);
  aspect-ratio: 1;
  top: -14%;
  right: -8%;
  background: radial-gradient(circle at 40% 40%, rgba(255, 77, 28, 0.42), transparent 68%);
}
.field__orb--2 {
  width: min(38vw, 520px);
  aspect-ratio: 1;
  bottom: -18%;
  left: -10%;
  background: radial-gradient(circle at 60% 40%, rgba(90, 120, 255, 0.20), transparent 70%);
}
.field__vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 120% 80% at 50% 0%, transparent 40%, rgba(10, 11, 13, 0.85) 100%);
}

/* Fine film grain — one tiny inline SVG, no network request. */
.grain {
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: 0.4;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.42'/%3E%3C/svg%3E");
}

/* --------------------------------------------------------------------------
   3. HERO
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-h) + clamp(1.5rem, 5vh, 3.5rem));
  padding-bottom: clamp(2rem, 4vh, 3.5rem);
  overflow: hidden;
  isolation: isolate;
}
.hero__inner { position: relative; z-index: 1; width: 100%; }

.hero__grid { display: grid; gap: clamp(2.5rem, 5vw, 4rem); align-items: center; }
@media (min-width: 1040px) {
  .hero__grid { grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr); gap: clamp(2rem, 4vw, 5rem); }
}

.hero__title {
  font-size: var(--fs-h1);
  font-weight: 500;
  line-height: 0.9;
  letter-spacing: -0.045em;
  text-wrap: balance;
}
.hero__title .ital { color: var(--signal); }

.hero__lead { margin-top: clamp(1.1rem, 2vw, 1.5rem); max-width: 52ch; }

.hero__actions { margin-top: clamp(1.5rem, 2.4vw, 2rem); display: flex; flex-wrap: wrap; gap: 0.85rem; }

.hero__meta {
  margin-top: clamp(1.25rem, 2.2vw, 1.75rem);
  padding-top: 1rem;
  border-top: 1px solid var(--line-ink);
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 2.25rem;
}
.hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--on-ink-faint);
}
.hero__meta-item b { color: var(--on-ink); font-weight: 500; letter-spacing: 0.1em; }

/* Scroll cue */
.scroll-cue {
  position: absolute;
  left: var(--gutter);
  bottom: clamp(1rem, 3vh, 2rem);
  z-index: 1;
  display: none;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--on-ink-faint);
}
@media (min-width: 1040px) and (min-height: 1000px) { .scroll-cue { display: flex; } }
.scroll-cue__track {
  width: 1px;
  height: 42px;
  background: var(--line-ink);
  position: relative;
  overflow: hidden;
}
.scroll-cue__track::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  height: 40%;
  background: var(--signal);
  animation: cue 2.4s var(--e-inout) infinite;
}
@keyframes cue {
  0%   { transform: translateY(-100%); }
  60%  { transform: translateY(250%); }
  100% { transform: translateY(250%); }
}

/* --------------------------------------------------------------------------
   4. MARQUEE
   -------------------------------------------------------------------------- */
.marquee {
  position: relative;
  overflow: hidden;
  border-block: 1px solid var(--line);
  padding-block: clamp(0.9rem, 1.6vw, 1.35rem);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee var(--speed, 46s) linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__group {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 3vw, 3rem);
  padding-right: clamp(1.5rem, 3vw, 3rem);
  flex: none;
}
.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: clamp(1.5rem, 3vw, 3rem);
  font-size: clamp(0.95rem, 1.5vw, 1.25rem);
  font-weight: 450;
  letter-spacing: -0.02em;
  color: var(--fg-mute);
  white-space: nowrap;
}
.marquee__item::after {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--signal);
  opacity: 0.75;
  flex: none;
}
@keyframes marquee {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(-50%, 0, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; }
}

/* --------------------------------------------------------------------------
   5. FOOTER
   -------------------------------------------------------------------------- */
.footer { position: relative; overflow: hidden; padding-top: clamp(3rem, 6vw, 5rem); }
.footer__top {
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}
@media (min-width: 900px) {
  .footer__top { grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); gap: clamp(1.5rem, 3vw, 3rem); }
}
.footer__brand { display: grid; gap: 1rem; align-content: start; }
.footer__col { display: grid; gap: 0.9rem; align-content: start; }
.footer__col h3 {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-faint);
  font-weight: 500;
}
.footer__col ul { display: grid; gap: 0.55rem; }
.footer__col a { color: var(--fg-mute); transition: color var(--t-fast) var(--e-out); font-size: 0.95rem; }
.footer__col a:hover { color: var(--signal); }

.footer__wordmark {
  font-size: clamp(4.5rem, 20vw, 19rem);
  font-weight: 600;
  letter-spacing: -0.06em;
  line-height: 0.78;
  color: transparent;
  -webkit-text-stroke: 1px var(--line-ink);
  user-select: none;
  padding-top: clamp(1rem, 3vw, 2rem);
  text-align: center;
  overflow: hidden;
}

.footer__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  justify-content: space-between;
  align-items: center;
  padding-block: 1.5rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-faint);
}
.footer__bar a:hover { color: var(--signal); }

/* Back to top */
.to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--fg-mute);
  transition: color var(--t-fast) var(--e-out);
}
.to-top:hover { color: var(--signal); }
.to-top svg { transition: transform var(--t-mid) var(--e-out); }
.to-top:hover svg { transform: translateY(-3px); }

/* Roomier tap targets for the footer link lists on touch-sized screens. */
@media (max-width: 899px) {
  .footer__col ul { gap: 0.35rem; }
  .footer__col a { display: inline-block; padding-block: 0.4rem; }
}