/* ==========================================================================
   NAV
   ========================================================================== */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 50%, transparent);
  transition: background .3s var(--ease);
}
.nav__inner {
  max-width: var(--max);
  margin-inline: auto;
  padding: 14px var(--gutter);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}
.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.nav__logo { height: 34px; width: auto; }
:root[data-theme="dark"] .nav__logo { filter: brightness(0) invert(1) sepia(.15) hue-rotate(240deg) saturate(1.3); }

.nav__links {
  display: flex;
  justify-content: center;
  gap: clamp(8px, 2vw, 28px);
  font-size: var(--step-0);
}
.nav__links a {
  padding: 8px 4px;
  color: var(--fg-soft);
  position: relative;
  transition: color .25s var(--ease);
}
.nav__links a:hover { color: var(--fg); }
.nav__links a::after {
  content: "";
  position: absolute;
  inset-inline: 4px;
  bottom: 2px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .3s var(--ease);
}
.nav__links a:hover::after { transform: scaleX(1); }

.nav__cta { display: inline-flex; align-items: center; gap: 12px; }
.lang-toggle {
  display: inline-flex;
  align-items: center;
  padding: 6px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: .05em;
}
.lang-toggle button,
.lang-toggle a {
  padding: 4px 10px;
  border-radius: 999px;
  color: var(--fg-muted);
  text-decoration: none;
  transition: background .25s var(--ease), color .25s var(--ease);
}
.lang-toggle button[aria-pressed="true"],
.lang-toggle a[aria-current="true"] {
  background: var(--accent);
  color: #fff;
}
.theme-toggle {
  width: 34px; height: 34px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  transition: border-color .25s var(--ease), color .25s var(--ease);
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.theme-toggle svg { width: 16px; height: 16px; }

@media (max-width: 880px) {
  .nav__links { display: none; }
  .nav__inner { grid-template-columns: auto 1fr; }
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  padding-top: clamp(120px, 14vh, 180px);
  padding-bottom: clamp(80px, 10vw, 140px);
  overflow: hidden;
  isolation: isolate;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}
.hero__bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 85% 30%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 60%),
    radial-gradient(ellipse 40% 50% at 15% 80%, color-mix(in srgb, var(--contrast-2) 12%, transparent), transparent 60%);
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, color-mix(in srgb, var(--line) 50%, transparent) 1px, transparent 1px);
  background-size: calc((100% - 2*var(--gutter)) / 12) 100%;
  background-position: var(--gutter) 0;
  mask-image: linear-gradient(to bottom, black 40%, transparent 100%);
  opacity: .5;
}

.hero__inner {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  position: relative;
}

.hero__eyebrow-row {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: clamp(40px, 6vh, 64px);
  flex-wrap: wrap;
}
.hero__eyebrow-row .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #2AA876;
  box-shadow: 0 0 0 0 #2AA876;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 color-mix(in srgb, #2AA876 50%, transparent); }
  50%     { box-shadow: 0 0 0 8px transparent; }
}
.hero__eyebrow-row .status {
  font-family: var(--ff-mono);
  font-size: var(--step--1);
  color: var(--fg-muted);
}

.hero__h1 {
  font-family: var(--ff-ar-display);
  font-weight: 500;
  font-size: var(--step-6);
  line-height: 1.0;
  letter-spacing: -.02em;
  margin: 0;
  text-wrap: balance;
}
:root[lang="en"] .hero__h1 {
  font-family: var(--ff-en-display);
  font-weight: 400;
  letter-spacing: -.03em;
  line-height: 0.95;
}
.hero__h1 em {
  font-style: italic;
  color: var(--accent);
  font-family: var(--ff-en-display);
  font-weight: 400;
  padding-inline: 4px;
}
:root[lang="ar"] .hero__h1 em {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
}

.hero__body {
  margin-top: clamp(24px, 3vw, 36px);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 80px);
  align-items: start;
}
@media (max-width: 900px) { .hero__body { grid-template-columns: 1fr; } }

.hero__sub {
  font-size: var(--step-2);
  line-height: 1.5;
  color: var(--fg-soft);
  max-width: 48ch;
  text-wrap: pretty;
  margin: 0;
}
.hero__meta { display: grid; gap: 20px; align-content: start; }
.hero__tagline {
  font-family: var(--ff-mono);
  font-size: var(--step--1);
  color: var(--fg-muted);
  letter-spacing: .04em;
}
.hero__tagline b { color: var(--accent); font-weight: 500; }
.hero__actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 4px; }

/* Hero marquee stats */
.hero__stats {
  margin-top: clamp(56px, 8vw, 96px);
  padding-block: 28px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
@media (max-width: 800px) { .hero__stats { grid-template-columns: repeat(2, 1fr); } }

.hero__stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.hero__stat strong {
  font-family: var(--ff-en-display);
  font-weight: 400;
  font-size: var(--step-4);
  color: var(--fg);
  line-height: 1;
  letter-spacing: -.02em;
}
.hero__stat span {
  font-family: var(--ff-mono);
  font-size: var(--step--1);
  color: var(--fg-muted);
  letter-spacing: .04em;
}

/* ==== Hero layout variants (for Tweaks) ==== */
:root[data-hero="split"] .hero__h1 { font-size: var(--step-5); }
:root[data-hero="split"] .hero__body { grid-template-columns: minmax(0,1fr) minmax(0,1fr); }

:root[data-hero="centered"] .hero__inner { text-align: center; }
:root[data-hero="centered"] .hero__eyebrow-row { justify-content: center; }
:root[data-hero="centered"] .hero__body { grid-template-columns: 1fr; justify-items: center; }
:root[data-hero="centered"] .hero__sub { text-align: center; margin-inline: auto; }
:root[data-hero="centered"] .hero__meta { align-items: center; }
:root[data-hero="centered"] .hero__actions { justify-content: center; }

/* Ribbon logo mark — a graphic version of the loop */
.hero__mark {
  position: absolute;
  top: 18%;
  inset-inline-end: clamp(-80px, -3vw, -40px);
  width: min(38vw, 460px);
  aspect-ratio: 1;
  pointer-events: none;
  opacity: .9;
  z-index: -1;
}
:root[data-hero="centered"] .hero__mark { display: none; }