/* ============================================================
   MERIDIAN — Components: nav, AI slots, cards, marquee, accordion
   ============================================================ */

/* ---- Announcement bar ---- */
.announce {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 1rem;
  background: var(--color-ivory);
  color: var(--color-text-onlight);
  font-size: var(--text-small);
}
.announce strong { font-weight: 650; }
.announce .countdown {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  color: var(--color-accent-deep);
}
.announce a {
  text-decoration: underline;
  text-underline-offset: 3px;
  color: var(--color-text-onlight-dim);
}

/* ---- Nav ---- */
.nav {
  position: fixed;
  top: 0.9rem;
  left: 50%;
  translate: -50% 0;
  z-index: 100;
  width: min(calc(100% - 2rem), 71rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.6rem 0.75rem 0.6rem 1.5rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition:
    background-color var(--duration-normal) linear,
    border-color var(--duration-normal) linear,
    backdrop-filter var(--duration-normal) linear;
}
.nav.is-scrolled {
  background: oklch(18% 0.008 80 / 0.72);
  border-color: var(--line-soft);
  backdrop-filter: blur(18px);
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.06em;
}
.nav-logo em {
  font-style: normal;
  color: var(--color-accent);
}
.nav-links {
  display: flex;
  gap: 1.75rem;
  font-size: var(--text-small);
  color: var(--color-text-dim);
}
.nav-links a:hover { color: var(--color-text); }
.nav-cta { display: flex; align-items: center; gap: 0.75rem; }
.nav-cta .login { font-size: var(--text-small); color: var(--color-text-dim); }
.nav-cta .login:hover { color: var(--color-text); }

@media (max-width: 720px) {
  .nav-links, .nav-cta .login { display: none; }
}

/* ============================================================
   AI MEDIA SLOT — the placeholder system.
   Every <figure class="ai-slot"> marks where a generated asset
   (fal.ai image / Higgsfield video) drops in. The chip explains
   which tool produces it. Replace the inner .ai-slot-canvas with
   the real <img>/<video> and delete the chip when populating.
   ============================================================ */
.ai-slot {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-media);
  isolation: isolate;
}
.ai-slot-canvas {
  position: absolute;
  inset: 0;
  z-index: -1;
}
.ai-slot img,
.ai-slot video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

/* Atmospheric stand-in gradients so the template still demos well */
.ai-fill-ember {
  background:
    radial-gradient(120% 90% at 70% 20%, oklch(35% 0.12 45 / 0.9), transparent 60%),
    radial-gradient(80% 80% at 20% 90%, oklch(28% 0.09 55 / 0.8), transparent 55%),
    linear-gradient(180deg, oklch(17% 0.01 70), oklch(13% 0.008 60));
}
.ai-fill-dusk {
  background:
    radial-gradient(100% 80% at 80% 10%, oklch(38% 0.07 265 / 0.75), transparent 60%),
    radial-gradient(90% 70% at 15% 85%, oklch(30% 0.1 45 / 0.7), transparent 55%),
    linear-gradient(180deg, oklch(19% 0.01 280), oklch(13% 0.006 280));
}
.ai-fill-sage {
  background:
    radial-gradient(110% 85% at 25% 15%, oklch(42% 0.06 150 / 0.6), transparent 60%),
    radial-gradient(80% 70% at 85% 80%, oklch(32% 0.05 120 / 0.55), transparent 55%),
    linear-gradient(180deg, oklch(20% 0.012 140), oklch(14% 0.008 140));
}
.ai-fill-ivory {
  background:
    radial-gradient(100% 80% at 75% 20%, oklch(90% 0.03 80), transparent 65%),
    linear-gradient(180deg, oklch(94% 0.015 85), oklch(88% 0.02 75));
}

.ai-chip {
  position: absolute;
  z-index: 2;
  left: 0.9rem;
  bottom: 0.9rem;
  max-width: calc(100% - 1.8rem);
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.6rem 0.85rem;
  border-radius: 0.75rem;
  background: oklch(10% 0.005 80 / 0.72);
  border: 1px solid var(--line-soft);
  backdrop-filter: blur(14px);
  font-size: var(--text-micro);
  line-height: 1.45;
  color: var(--color-text-dim);
  pointer-events: none;
}
.ai-chip .tool {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-soft);
}
.ai-chip .tool::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
}

/* ---- Stat strip ---- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.stat {
  border-left: 1px solid var(--line-strong);
  padding-left: 1.1rem;
}
.stat b {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 500;
}
.stat span { font-size: var(--text-small); color: var(--color-text-dim); }
@media (max-width: 640px) {
  .stat-strip { grid-template-columns: 1fr; gap: 1.25rem; }
}

/* ---- Accordion ---- */
.accordion { display: grid; gap: 0.6rem; }
.accordion details {
  border: 1px solid var(--line-soft);
  border-radius: 0.9rem;
  background: oklch(100% 0 0 / 0.04);
  backdrop-filter: blur(10px);
  overflow: hidden;
}
.accordion summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.95rem 1.2rem;
  font-size: var(--text-small);
  font-weight: 550;
  cursor: pointer;
}
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after {
  content: "+";
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--color-text-dim);
  transition: rotate var(--duration-fast) var(--ease-out-expo);
}
.accordion details[open] summary::after { rotate: 45deg; }
.accordion .a-body {
  padding: 0 1.2rem 1.1rem;
  font-size: var(--text-small);
  color: var(--color-text-dim);
  max-width: 52ch;
}

/* ---- Marquee ---- */
.marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
  display: flex;
  gap: 1.25rem;
  width: max-content;
  animation: marquee-scroll 48s linear infinite;
}
.marquee[data-direction="reverse"] .marquee-track { animation-direction: reverse; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee-scroll {
  to { transform: translateX(-50%); }
}

.t-card {
  width: clamp(18rem, 26vw, 24rem);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.5rem;
  border-radius: var(--radius-card);
  border: 1px solid var(--line-soft);
  background: var(--color-bg-card);
}
.t-card blockquote {
  margin: 0;
  font-size: var(--text-small);
  line-height: 1.65;
  color: var(--color-text);
}
.t-card .t-meta { font-size: var(--text-micro); color: var(--color-text-faint); }
.t-card .t-meta b { display: block; font-size: var(--text-small); color: var(--color-text-dim); }
.t-card .t-result {
  margin-top: auto;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line-soft);
  font-size: var(--text-micro);
  color: var(--color-accent-soft);
}

/* ---- Press row ---- */
.press-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2.5rem 3.5rem;
  align-items: center;
  opacity: 0.55;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}