/* =========================================================
   Avatars of Gaia — Phase 1
   Design direction: Mythic Illumination
   Palette + type per approved handoff v2.0. Motion stays slow.
   ========================================================= */

:root {
  --gaia-black: #070B09;
  --forest-night: #101A14;
  --dark-moss: #26352B;
  --ancient-gold: #C8A45D;
  --emerald-light: #4FAE7B;
  --celestial-blue: #6C91C2;
  --mist-white: #F4F1E8;
  --stone-grey: #A8A59B;

  --font-display: "Cinzel", Georgia, serif;
  --font-body: "Inter", system-ui, sans-serif;

  --wrap: 1200px;
  --measure: 60ch;
  --pad-x: clamp(22px, 5vw, 96px);
  --panel-y: clamp(96px, 16vh, 220px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--gaia-black);
  color: var(--mist-white);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2 { font-family: var(--font-display); font-weight: 500; line-height: 1.08; margin: 0; text-wrap: balance; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--pad-x); width: 100%; }

.skip { position: absolute; left: -999px; }
.skip:focus {
  left: 16px; top: 16px; z-index: 200;
  background: var(--ancient-gold); color: var(--gaia-black);
  padding: 10px 16px; border-radius: 4px;
}

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 0;
  background: linear-gradient(90deg, transparent, var(--ancient-gold));
  z-index: 120; pointer-events: none;
}

/* ---------- Sacred geometry ornament ---------- */
.ornament { fill: none; stroke: var(--ancient-gold); stroke-width: 1; }
.ornament * { vector-effect: non-scaling-stroke; }

/* ---------- Header ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px var(--pad-x);
  transition: background 0.5s ease, backdrop-filter 0.5s ease;
}
.nav.is-scrolled {
  background: rgba(7, 11, 9, 0.7); backdrop-filter: blur(12px);
}
.nav__logo { height: 44px; width: auto; }
.nav__links {
  display: flex; gap: clamp(18px, 3vw, 42px);
  list-style: none; margin: 0; padding: 0;
  font-size: 14px; letter-spacing: 0.06em; text-transform: uppercase;
}
.nav__links a { color: var(--stone-grey); position: relative; transition: color 0.3s ease; }
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 1px; width: 100%;
  background: var(--ancient-gold); transform: scaleX(0); transform-origin: left center;
  transition: transform 0.35s ease;
}
.nav__links a:hover, .nav__links a:focus-visible { color: var(--ancient-gold); }
.nav__links a:hover::after, .nav__links a:focus-visible::after { transform: scaleX(1); }

.nav__burger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav__burger span { width: 26px; height: 2px; background: var(--mist-white); transition: transform 0.3s ease; }

.mobile-menu { position: fixed; inset: 0; z-index: 95; background: rgba(7, 11, 9, 0.97); display: grid; place-items: center; }
.mobile-menu[hidden] { display: none; }
.mobile-menu ul { list-style: none; margin: 0; padding: 0; text-align: center; }
.mobile-menu a { font-family: var(--font-display); font-size: 26px; color: var(--mist-white); display: block; padding: 16px; }
.mobile-menu a:hover { color: var(--ancient-gold); }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100svh; display: flex; align-items: center;
  overflow: hidden;
  background: var(--gaia-black);
}
.hero__stars { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; }
.hero__inner { position: relative; z-index: 3; }
.hero__title { font-size: clamp(48px, 10vw, 120px); letter-spacing: 0.01em; text-wrap: balance; }
.hero__title span { display: inline-block; }
.hero__sub {
  color: var(--stone-grey); font-size: clamp(18px, 2.4vw, 24px);
  margin-top: 26px; letter-spacing: 0.03em;
}

/* Photographic planetary horizon (Earth from space), dark-graded so type stays legible. */
.hero__earth {
  position: absolute; inset: auto 0 0 0; z-index: 1; height: 66%;
  background: url("https://images.unsplash.com/photo-1451187580459-43490279c0fa?auto=format&fit=crop&w=2400&q=80") center 34% / cover no-repeat;
  -webkit-mask-image: linear-gradient(to top, #000 44%, rgba(0,0,0,0.5) 74%, transparent 100%);
          mask-image: linear-gradient(to top, #000 44%, rgba(0,0,0,0.5) 74%, transparent 100%);
}
.hero__earth::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(90% 70% at 50% 100%, rgba(79, 174, 123, 0.22), transparent 62%),
    linear-gradient(to top, rgba(7, 11, 9, 0.55), rgba(7, 11, 9, 0.12) 55%, transparent);
}
.hero__ring {
  position: absolute; left: 50%; bottom: -6vw; z-index: 1;
  width: 66vw; height: 66vw; max-width: 780px; max-height: 780px;
  transform: translateX(-50%) rotateX(74deg); border-radius: 50%;
  border: 1px solid rgba(200, 164, 93, 0.20);
}
.hero__ornament {
  position: absolute; left: 50%; top: 44%; z-index: 2;
  width: min(52vw, 560px); height: min(52vw, 560px);
  transform: translate(-50%, -50%); opacity: 0.12;
}
.hero__scroll {
  position: absolute; left: 50%; bottom: 34px; z-index: 3; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  color: var(--stone-grey); font-size: 11px; letter-spacing: 0.28em; text-transform: uppercase;
}
.hero__scroll i { width: 1px; height: 42px; background: linear-gradient(var(--ancient-gold), transparent); }

/* ---------- Panels ---------- */
.panel {
  position: relative; overflow: hidden;
  min-height: 100svh; display: flex; align-items: center;
  padding: var(--panel-y) 0;
}
.panel:nth-child(even) { background: var(--forest-night); }
.panel__body { position: relative; z-index: 2; max-width: 760px; }
.panel__body--narrow { max-width: 620px; }
.panel--center { text-align: center; }
.panel--center .panel__body { margin: 0 auto; }
.panel--wide .panel__body { max-width: 900px; }
.panel__body--center { text-align: center; margin: 0 auto; }

.panel__glow {
  position: absolute; z-index: 0; width: 70vw; height: 70vw; max-width: 900px; max-height: 900px;
  border-radius: 50%; filter: blur(90px); opacity: 0.4; pointer-events: none;
}
.panel__glow--emerald { top: -10%; left: -14%; background: radial-gradient(circle, rgba(79, 174, 123, 0.34), transparent 65%); }
.panel__glow--blue { bottom: -20%; right: -12%; background: radial-gradient(circle, rgba(108, 145, 194, 0.28), transparent 65%); }
.panel__glow--gold { top: 20%; right: -18%; background: radial-gradient(circle, rgba(200, 164, 93, 0.22), transparent 65%); }
.panel__ornament {
  position: absolute; left: 50%; top: 50%; z-index: 0;
  width: min(64vw, 620px); height: min(64vw, 620px);
  transform: translate(-50%, -50%); opacity: 0.10; pointer-events: none;
}

/* ---------- Full-bleed imagery panels ---------- */
.panel--image, .panel--split { min-height: 100svh; }
.panel--image.panel, .panel--split.panel, .panel--brand.panel { background: var(--gaia-black); }
.panel__media {
  position: absolute; inset: -8% 0; z-index: 0; pointer-events: none;
  background-size: cover; background-repeat: no-repeat; background-position: center;
}
/* Default overlay: dark on the left where text sits. */
.panel__media::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(105deg, rgba(7, 11, 9, 0.92) 0%, rgba(7, 11, 9, 0.72) 42%, rgba(16, 26, 20, 0.34) 100%),
    radial-gradient(70% 60% at 20% 60%, rgba(79, 174, 123, 0.16), transparent 60%);
}
.panel--image .panel__body { max-width: 620px; }

/* Centered-over-image (The Call): dark top and bottom, image glows through middle. */
.panel--text-center .panel__media::after {
  background:
    linear-gradient(rgba(7,11,9,0.78), rgba(7,11,9,0.45) 42%, rgba(7,11,9,0.78)),
    radial-gradient(60% 50% at 50% 46%, rgba(79,174,123,0.10), transparent 70%);
}
.panel--text-center .panel__body { max-width: 720px; }

/* Text on the right (The Game): overlay dark on the right. */
.panel--text-right .panel__media::after {
  background: linear-gradient(255deg, rgba(7,11,9,0.92) 0%, rgba(7,11,9,0.7) 44%, rgba(16,26,20,0.3) 100%);
}
.panel--text-right .panel__body { max-width: 620px; margin-left: auto; text-align: right; }
.panel--text-right .divider { margin-left: auto; transform-origin: right center; }
.panel--text-right p { margin-left: auto; }

/* Split (What Is an Avatar?): text left, image bleeds off the right edge. */
.panel--split { position: relative; }
.panel__media--right { inset: 0 0 0 auto; width: 52%; }
.panel__media--right::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, var(--gaia-black) 0%, rgba(7,11,9,0.55) 22%, transparent 55%),
    linear-gradient(rgba(7,11,9,0.28), rgba(7,11,9,0.28));
}
.panel__body--split { max-width: 44%; }

/* Official Brand: the mark carries the section. */
.panel--brand { min-height: 92svh; }
.brand__mark {
  width: clamp(150px, 20vw, 220px); height: auto; margin: 30px auto 34px;
  filter: drop-shadow(0 0 30px rgba(200, 164, 93, 0.25));
}

/* ---------- Type blocks ---------- */
.eyebrow {
  font-family: var(--font-display); color: var(--ancient-gold);
  font-size: clamp(30px, 5vw, 52px); margin: 0;
}
.divider { width: 96px; height: 1px; border: 0; background: var(--ancient-gold); opacity: 0.55; margin: 28px 0 32px; transform-origin: left center; }
.divider--center { margin-inline: auto; transform-origin: center; }
.panel--center .divider { margin-inline: auto; transform-origin: center; }
.ceremonial {
  font-family: var(--font-display); font-size: clamp(24px, 3.4vw, 36px);
  color: var(--mist-white); margin: 0 0 28px; line-height: 1.34; max-width: 24ch;
}
.panel--center .ceremonial, .panel__body--center .ceremonial { max-width: none; }
.panel p { max-width: var(--measure); color: var(--mist-white); margin: 0 0 20px; }
.panel--center .panel__body p, .panel__body--center p { margin-inline: auto; }

.invocation {
  font-family: var(--font-display); font-size: clamp(28px, 5vw, 58px);
  line-height: 1.35; color: var(--mist-white); margin: 0 0 32px; max-width: none;
}

/* ---------- Closing horizon ---------- */
.panel--closing { min-height: 100svh; background: var(--gaia-black); }
.closing__horizon {
  position: absolute; inset: auto 0 0 0; height: 60%; z-index: 0; pointer-events: none;
  background:
    radial-gradient(80% 120% at 50% 130%, rgba(200, 164, 93, 0.28), transparent 60%),
    radial-gradient(60% 90% at 50% 135%, rgba(79, 174, 123, 0.30), transparent 60%);
  -webkit-mask-image: linear-gradient(to top, #000 40%, transparent);
          mask-image: linear-gradient(to top, #000 40%, transparent);
}

/* ---------- Sound control ---------- */
.sound {
  display: inline-flex; align-items: center; gap: 10px; margin-top: 14px;
  background: none; border: 1px solid rgba(200, 164, 93, 0.4); color: var(--ancient-gold);
  font-family: var(--font-body); font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 10px 22px; border-radius: 999px; cursor: pointer;
  transition: border-color 0.3s ease, color 0.3s ease;
}
.sound::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; opacity: 0.7; }
.sound:hover { border-color: var(--emerald-light); color: var(--emerald-light); }
.sound[disabled] { opacity: 0.5; cursor: default; }

/* ---------- Footer ---------- */
.footer { background: var(--gaia-black); border-top: 1px solid rgba(200, 164, 93, 0.18); padding: 64px 0; text-align: center; }
.footer__logo { height: 56px; width: auto; margin: 0 auto 24px; }
.footer__nav ul { list-style: none; display: flex; flex-wrap: wrap; justify-content: center; gap: 24px; margin: 0 0 28px; padding: 0; font-size: 13px; letter-spacing: 0.04em; text-transform: uppercase; }
.footer__nav a { color: var(--stone-grey); }
.footer__nav a:hover { color: var(--ancient-gold); }
.footer__attr, .footer__legal { color: var(--stone-grey); font-size: 13px; margin: 6px 0; }

/* ---------- Hero entrance (CSS-only, always completes) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .anim .hero__title span { animation: ag-rise 1s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
  .anim .hero__title span:nth-child(1) { animation-delay: 0.2s; }
  .anim .hero__title span:nth-child(2) { animation-delay: 0.34s; }
  .anim .hero__title span:nth-child(3) { animation-delay: 0.48s; }
  .anim .hero__sub { animation: ag-rise 1s ease 0.7s both; }
  .anim .hero__ornament { animation: ag-fade-orn 1.8s ease 0.3s both; }
  .anim .hero__scroll { animation: ag-fade 1s ease 1.3s both; }
}
@keyframes ag-rise { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: none; } }
@keyframes ag-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes ag-fade-orn { from { opacity: 0; } to { opacity: 0.12; } }

/* ---------- Reveal ----------
   Content is visible by default. GSAP enhances with a gentle rise using
   immediateRender:false, so a stalled/headless render never ships blank. */

/* ---------- Mobile ---------- */
@media (max-width: 768px) {
  .nav nav[aria-label="Primary"] { display: none; }
  .nav__burger { display: flex; }
  .panel { min-height: auto; padding: 100px 0; }
  .panel--image, .panel--closing, .panel--split { min-height: 88svh; }

  /* Split becomes full-bleed image behind text on small screens. */
  .panel__media--right { inset: -8% 0; width: 100%; }
  .panel__media--right::after {
    background: linear-gradient(105deg, rgba(7,11,9,0.93) 0%, rgba(7,11,9,0.74) 46%, rgba(16,26,20,0.4) 100%);
  }
  .panel__body--split { max-width: 620px; }

  /* Right-aligned text returns to left on small screens for readability. */
  .panel--text-right .panel__body { text-align: left; margin-left: 0; }
  .panel--text-right .panel__body p { margin-left: 0; }
  .panel--text-right .divider { margin-left: 0; transform-origin: left center; }
}