/* ==========================================================================
   Eltes AI — deep-space skin
   --------------------------------------------------------------------------
   A living galaxy sits behind the marketing and documentation pages: a fixed
   canvas (assets/js/galaxy.js) paints the nebula, dust and parallax stars over
   the base gradient declared here. Everything else in this file is the polish
   that ties the site to it — glass navigation, a sheen on primary actions,
   slow-moving gradient headlines, translucent chrome and gentler reveals.
   ========================================================================== */

:root {
  --space-0: #000003;
  --space-1: #030106;
  --space-2: #070309;
  --glow-blue: rgba(64, 118, 255, 0.55);
  --glow-violet: rgba(158, 128, 255, 0.32);
  --glow-teal: rgba(74, 226, 198, 0.16);
}

html {
  background:
    radial-gradient(ellipse 80% 55% at 50% -8%, #0a0714 0%, transparent 62%),
    radial-gradient(ellipse 60% 45% at 88% 105%, #0c0509 0%, transparent 66%),
    var(--space-0);
}

/* The canvas paints above the root background, below every page element. */
body.galaxy-page {
  background: transparent;
  color: var(--text);
}

.galaxy {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  contain: strict;
  /* A painted approximation: what shows before the canvas boots, and for
     readers with JavaScript disabled. */
  background:
    radial-gradient(64% 40% at 58% 74%, rgba(255, 218, 178, 0.13), transparent 70%),
    radial-gradient(40% 30% at 80% 18%, rgba(214, 190, 255, 0.1), transparent 72%),
    radial-gradient(34% 26% at 26% 70%, rgba(255, 118, 158, 0.08), transparent 74%),
    radial-gradient(40% 30% at 72% 48%, rgba(64, 226, 198, 0.06), transparent 76%),
    #000003;
}
.galaxy-canvas,
.galaxy-backdrop {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}
/* Fine grain hides gradient banding and makes the sky feel photographic. */
.galaxy::before {
  content: "";
  position: absolute;
  inset: -10%;
  z-index: 2;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: screen;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 180px 180px;
}
.galaxy-backdrop {
  /* A very slow breath, so even a still screen drifts through space. */
  animation: galaxy-drift 190s ease-in-out infinite alternate;
  transform-origin: 60% 55%;
  will-change: transform;
}
@keyframes galaxy-drift {
  from { transform: scale(1.04) translate3d(-0.6%, 0.4%, 0) rotate(-0.25deg); }
  to { transform: scale(1.07) translate3d(0.8%, -0.5%, 0) rotate(0.3deg); }
}

.galaxy-canvas {
  z-index: 1;
  opacity: 0;
  transition: opacity 1.4s var(--ease);
}
.galaxy--ready .galaxy-canvas { opacity: 1; }
/* No-javascript fallback: the painted backdrop still carries the scene. */
.galaxy--static .galaxy-canvas { opacity: 0.75; }

.galaxy::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 120% 90% at 50% -14%, transparent 44%, rgba(0, 0, 3, 0.6) 100%),
    radial-gradient(ellipse 72% 52% at 50% 108%, rgba(0, 0, 3, 0.52), transparent 72%);
  opacity: 0.95;
}

/* ------------------------------- navigation ------------------------------ */

body.galaxy-page .nav {
  background: linear-gradient(180deg, rgba(4, 4, 6, 0.72), rgba(4, 4, 6, 0.24));
  border-bottom-color: rgba(214, 206, 224, 0.09);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
}
body.galaxy-page .nav.scrolled {
  background: linear-gradient(180deg, rgba(4, 4, 6, 0.92), rgba(6, 5, 8, 0.74));
  border-bottom-color: rgba(214, 206, 224, 0.13);
  box-shadow: 0 18px 40px -30px rgba(0, 0, 0, 0.9);
}
body.galaxy-page .brand-mark {
  filter: drop-shadow(0 0 12px rgba(55, 214, 160, 0.34));
}
body.galaxy-page .nav-links a {
  position: relative;
  border: 1px solid transparent;
}
body.galaxy-page .nav-links a:hover {
  border-color: rgba(214, 206, 224, 0.12);
  background: rgba(255, 255, 255, 0.04);
}
body.galaxy-page .nav-links a.active {
  color: #fff;
  border-color: rgba(214, 206, 224, 0.14);
  background: linear-gradient(180deg, rgba(88, 138, 255, 0.14), rgba(88, 138, 255, 0.04));
}
body.galaxy-page .nav-links a.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 3px;
  width: 16px;
  height: 2px;
  margin-left: -8px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, #8fb7ff, transparent);
  box-shadow: 0 0 12px rgba(122, 168, 255, 0.7);
}

/* --------------------------------- buttons ------------------------------- */

body.galaxy-page .btn {
  isolation: isolate;
  overflow: hidden;
}
body.galaxy-page .btn-primary {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.16), transparent 46%),
    linear-gradient(180deg, #4f8bff 0%, #2a63ee 62%, #2453d6 100%);
  border-color: rgba(170, 203, 255, 0.36);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.26) inset,
    0 14px 32px -16px rgba(56, 118, 255, 0.9);
}
body.galaxy-page .btn-primary::after {
  content: "";
  position: absolute;
  inset: -60% -30%;
  z-index: -1;
  background: linear-gradient(105deg, transparent 38%, rgba(255, 255, 255, 0.32) 50%, transparent 62%);
  transform: translateX(-130%);
  transition: transform 0.75s var(--ease);
}
body.galaxy-page .btn-primary:hover::after { transform: translateX(130%); }
body.galaxy-page .btn-primary:hover {
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.3) inset,
    0 20px 44px -18px rgba(56, 118, 255, 0.95),
    0 0 0 1px rgba(160, 196, 255, 0.28);
}
body.galaxy-page .btn-ghost {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.014));
  border-color: rgba(214, 206, 224, 0.18);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05) inset;
}
body.galaxy-page .btn-ghost:hover {
  border-color: rgba(160, 195, 255, 0.32);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.025));
}

/* --------------------------- hero, quieted down -------------------------- */

/* The canvas already supplies colour, so the static glow blobs step back. */
body.galaxy-page .hero::before { opacity: 0.55; }
body.galaxy-page .hero .aura { opacity: 0.35 !important; filter: blur(6px); }
body.galaxy-page .hero::after {
  background-image: radial-gradient(rgba(150, 185, 245, 0.06) 1px, transparent 1px);
  opacity: 0.8;
}
body.galaxy-page .docs-hero::before { opacity: 0.6; }
body.galaxy-page .docs-hero::after { opacity: 0.55; }
body.galaxy-page .news-hero::before { opacity: 0.5; }
body.galaxy-page .cta-inner,
body.galaxy-page .showcase-shell { backdrop-filter: blur(6px); }

/* -------------------------------- headings ------------------------------- */

body.galaxy-page .hero h1 .line-2,
body.galaxy-page .docs-hero h1,
body.galaxy-page .news-hero h1 {
  background-size: 200% 100%;
  animation: cosmic-shimmer 22s ease-in-out infinite alternate;
}
@keyframes cosmic-shimmer {
  from { background-position: 0% 50%; }
  to { background-position: 100% 50%; }
}

body.galaxy-page .section-head h2 {
  background: linear-gradient(178deg, #ffffff 8%, #dbe7fb 54%, #a9c1e6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

body.galaxy-page .eyebrow {
  color: #9cc0ff;
  text-shadow: 0 0 26px rgba(88, 138, 255, 0.45);
}

/* --------------------------------- surfaces ------------------------------ */

body.galaxy-page .card,
body.galaxy-page .model-tile {
  transition: border-color 0.28s, transform 0.32s var(--ease), background 0.28s, box-shadow 0.32s;
}
body.galaxy-page .card:hover,
body.galaxy-page .model-tile:hover {
  box-shadow:
    0 26px 60px -34px rgba(56, 118, 255, 0.6),
    0 0 0 1px rgba(150, 188, 255, 0.14);
}
body.galaxy-page .news-feature,
body.galaxy-page .shot {
  box-shadow: 0 34px 80px -46px rgba(0, 0, 0, 0.95), 0 0 0 1px rgba(150, 188, 255, 0.06);
}
body.galaxy-page .news-feature:hover {
  border-color: rgba(150, 188, 255, 0.26);
}

body.galaxy-page .footer {
  background: linear-gradient(180deg, rgba(4, 3, 6, 0.35), rgba(0, 0, 3, 0.88));
  border-top-color: rgba(214, 206, 224, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Thin living rail at the very top of documentation and news pages. */
body.galaxy-page .scroll-progress {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: 2px;
  pointer-events: none;
  background: rgba(255, 255, 255, 0.025);
}
body.galaxy-page .scroll-progress span {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(var(--scroll-progress, 0));
  transform-origin: left center;
  background: linear-gradient(90deg, #4b80f5, #78a7ff 55%, #6de0b5);
  box-shadow: 0 0 12px rgba(83, 141, 255, 0.44);
}

/* ------------------------------- fine detail ----------------------------- */

/* A soft dark halo under body copy keeps contrast high wherever the band
   drifts behind the text, without boxing the layout in. */
body.galaxy-page p,
body.galaxy-page li,
body.galaxy-page .doc p,
body.galaxy-page .news-sum,
body.galaxy-page .shot figcaption {
  text-shadow: 0 1px 2px rgba(0, 0, 3, 0.8), 0 0 18px rgba(0, 0, 3, 0.68);
}

body.galaxy-page ::selection {
  background: rgba(88, 138, 255, 0.35);
  color: #fff;
}

body.galaxy-page :focus-visible {
  outline: 2px solid rgba(122, 168, 255, 0.85);
  outline-offset: 3px;
  border-radius: 6px;
}

body.galaxy-page h1,
body.galaxy-page h2,
body.galaxy-page h3 {
  text-wrap: balance;
}
body.galaxy-page p,
body.galaxy-page li {
  text-wrap: pretty;
}

body.galaxy-page ::-webkit-scrollbar { width: 10px; height: 10px; }
body.galaxy-page ::-webkit-scrollbar-track { background: rgba(4, 8, 16, 0.6); }
body.galaxy-page ::-webkit-scrollbar-thumb {
  border-radius: 8px;
  border: 2px solid transparent;
  background-clip: padding-box;
  background-color: rgba(122, 152, 205, 0.28);
}
body.galaxy-page ::-webkit-scrollbar-thumb:hover { background-color: rgba(138, 172, 235, 0.42); }

/* A soft halo behind the hero headline, so type and space meet gently. */
body.galaxy-page .hero-inner::before,
body.galaxy-page .docs-hero .wrap::before,
body.galaxy-page .news-hero .wrap::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -80px;
  width: min(860px, 96vw);
  height: 420px;
  transform: translateX(-50%);
  pointer-events: none;
  z-index: -1;
  background: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(30, 22, 44, 0.55), transparent 72%);
  filter: blur(12px);
}
body.galaxy-page .hero-inner::before { top: -110px; height: 520px; }

/* Reduced motion: keep the beauty, drop the movement. */
@media (prefers-reduced-motion: reduce) {
  body.galaxy-page .hero h1 .line-2,
  body.galaxy-page .docs-hero h1,
  body.galaxy-page .news-hero h1 {
    animation: none;
    background-position: 30% 50%;
  }
  body.galaxy-page .btn-primary::after { display: none; }
  body.galaxy-page .galaxy-backdrop { animation: none; transform: none; }
  body.galaxy-page .card:hover,
  body.galaxy-page .model-tile:hover { transform: none; }
}

/* Forced colours: never let the gradient headings vanish. */
@media (forced-colors: active) {
  body.galaxy-page .section-head h2,
  body.galaxy-page .hero h1 .line-2,
  body.galaxy-page .docs-hero h1,
  body.galaxy-page .news-hero h1 {
    background: none;
    color: CanvasText;
    -webkit-text-fill-color: CanvasText;
  }
  body.galaxy-page .galaxy { display: none; }
}

@media (max-width: 720px) {
  body.galaxy-page .nav {
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
  }
  body.galaxy-page .hero-inner::before,
  body.galaxy-page .docs-hero .wrap::before,
  body.galaxy-page .news-hero .wrap::before { display: none; }
}

/* ------------------------------ rhythm & links --------------------------- */

/* A hairline between sections reads as a horizon line over the sky. */
body.galaxy-page .section { position: relative; }
body.galaxy-page .section + .section::before {
  content: "";
  position: absolute;
  inset: 0 8% auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(214, 206, 224, 0.16), transparent);
  pointer-events: none;
}

body.galaxy-page .footer-col a,
body.galaxy-page .footer-bottom a {
  transition: color 0.15s, letter-spacing 0.2s var(--ease);
}
body.galaxy-page .footer-col a:hover { letter-spacing: 0.012em; color: #fff; }

body.galaxy-page .hero-stats > div {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.014));
  border-color: rgba(150, 188, 255, 0.16);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
body.galaxy-page .hero-stats strong {
  background: linear-gradient(180deg, #ffffff, #b9cdf0);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
body.galaxy-page .hero-stats span { color: #8fa6c8; }

body.galaxy-page .badge {
  background: rgba(255, 255, 255, 0.035);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

/* Code blocks and tables sit on glass so they stay legible over the stars. */
body.galaxy-page .doc-code,
body.galaxy-page .table-scroll {
  background: rgba(4, 8, 15, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

@media (prefers-reduced-motion: reduce) {
  body.galaxy-page .footer-col a:hover { letter-spacing: normal; }
}