/* Site-wide tokens and layout for General Chromodynamics hub (index.html).
   Each quadrant overrides tokens via .quadrant--* classes for per-project aesthetics. */

*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --gc-bg: #08080c;
  --gc-text: #e8e8ef;
  --gc-muted: #9898a8;
  /* Hub wordmark + accents: one token per project quadrant */
  --gc-color-element-gate: #22d3ee;
  --gc-color-golden-bit: #39ff14;
  --gc-color-mostly-losses: #60a5fa;
  --gc-color-rrr: #f39233;
  --gc-color-rrr-cream: #fdf2d0;
  --gc-color-rrr-green: #2d6a3e;
  --gc-chroma: linear-gradient(
    90deg,
    var(--gc-color-element-gate) 0%,
    var(--gc-color-golden-bit) 26%,
    var(--gc-color-mostly-losses) 50%,
    var(--gc-color-rrr) 72%,
    color-mix(in srgb, var(--gc-color-rrr) 70%, var(--gc-color-rrr-cream)) 100%
  );
  --grid-gap: clamp(0.75rem, 2vw, 1.25rem);
  --radius-lg: 14px;
  --font-sans: "DM Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", monospace;
  --font-pixel: "Press Start 2P", var(--font-mono);
  --quadrant-media-h: clamp(9.5rem, 22vw, 11.5rem);
  /* Hub title gradient motion (index.html site-header__title-text). */
  --gc-brand-motion-duration: 18s;
  --gc-brand-motion-easing: ease-in-out;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .site-header__title-text {
    animation: none;
    background-position: 0% 50%;
  }
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--gc-text);
  background-color: #0a0807;
  background-image: radial-gradient(
      ellipse 110% 65% at 50% -12%,
      color-mix(in srgb, var(--gc-color-rrr) 26%, transparent),
      transparent 58%
    ),
    radial-gradient(
      ellipse 90% 55% at 15% -5%,
      color-mix(in srgb, var(--gc-color-element-gate) 20%, transparent),
      transparent 55%
    ),
    radial-gradient(
      ellipse 70% 45% at 88% 12%,
      color-mix(in srgb, var(--gc-color-mostly-losses) 14%, transparent),
      transparent 50%
    ),
    radial-gradient(
      ellipse 60% 50% at 92% 88%,
      color-mix(in srgb, var(--gc-color-mostly-losses) 16%, transparent),
      transparent 50%
    ),
    radial-gradient(
      ellipse 75% 55% at 5% 95%,
      color-mix(in srgb, var(--gc-color-rrr) 32%, transparent),
      transparent 52%
    ),
    radial-gradient(
      ellipse 50% 40% at 72% 42%,
      color-mix(in srgb, var(--gc-color-rrr) 12%, transparent),
      transparent 50%
    );
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
}

.site-header {
  padding: clamp(2rem, 6vw, 4rem) clamp(1.25rem, 4vw, 2.5rem) clamp(1.5rem, 4vw, 2.5rem);
  text-align: center;
  position: relative;
}

.site-header::after {
  content: "";
  display: block;
  width: min(14rem, 70%);
  height: 3px;
  margin: 1.25rem auto 0;
  border-radius: 999px;
  background: var(--gc-chroma);
  opacity: 0.85;
}

.site-header__title {
  display: inline-block;
  max-width: 100%;
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 4.5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

/* Hub wordmark row: hex logo + animated gradient title (index.html site-header). */
.site-header__brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: clamp(0.55rem, 2.5vw, 0.9rem);
  max-width: 100%;
}

.site-header__logo {
  width: clamp(2.75rem, 10vw, 3.75rem);
  height: auto;
  flex-shrink: 0;
  filter: drop-shadow(
      0 0 12px color-mix(in srgb, var(--gc-color-element-gate) 35%, transparent)
    )
    drop-shadow(0 0 14px color-mix(in srgb, var(--gc-color-rrr) 28%, transparent));
}

.site-header__title {
  filter: drop-shadow(
      0 0 18px color-mix(in srgb, var(--gc-color-element-gate) 30%, transparent)
    )
    drop-shadow(
      0 0 20px color-mix(in srgb, var(--gc-color-golden-bit) 22%, transparent)
    )
    drop-shadow(
      0 0 22px color-mix(in srgb, var(--gc-color-rrr) 32%, transparent)
    );
}

/* Gradient + motion on inner span (more reliable with background-clip: text) */
.site-header__title-text {
  display: inline-block;
  background-image: linear-gradient(
    90deg,
    var(--gc-color-element-gate) 0%,
    var(--gc-color-golden-bit) 12.5%,
    var(--gc-color-mostly-losses) 25%,
    var(--gc-color-rrr) 37.5%,
    var(--gc-color-rrr-cream) 45%,
    var(--gc-color-element-gate) 50%,
    var(--gc-color-golden-bit) 62.5%,
    var(--gc-color-mostly-losses) 75%,
    var(--gc-color-rrr) 87.5%,
    var(--gc-color-element-gate) 100%
  );
  background-size: 300% 100%;
  background-position: 0% 50%;
  background-repeat: repeat;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  will-change: background-position;
  animation: gc-title-flow-position var(--gc-brand-motion-duration) var(--gc-brand-motion-easing)
    infinite alternate;
}

@keyframes gc-title-flow-position {
  from {
    background-position: 0% 50%;
  }

  to {
    background-position: 200% 50%;
  }
}

.site-header__tagline {
  margin: 0 auto;
  max-width: 36rem;
  color: var(--gc-muted);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
}

.quadrant-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--grid-gap);
  padding: 0 clamp(1rem, 3vw, 2rem) clamp(2rem, 5vw, 3.5rem);
  max-width: 68rem;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .quadrant-grid {
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 1fr;
    align-items: stretch;
  }
}

.quadrant {
  display: grid;
  grid-template-rows: var(--quadrant-media-h) 1fr;
  height: 100%;
  min-height: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  position: relative;
  isolation: isolate;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.quadrant:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

.quadrant:hover {
  transform: translateY(-3px);
}

.quadrant.quadrant--static {
  cursor: default;
}

.quadrant.quadrant--static:hover {
  transform: none;
}

.quadrant__media {
  position: relative;
  height: var(--quadrant-media-h);
  overflow: hidden;
}

.quadrant__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
}

.quadrant__body {
  padding: 1.1rem 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-height: 8.75rem;
}

.quadrant__meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.85;
}

.quadrant__title {
  margin: 0;
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  line-height: 1.25;
}

.quadrant__desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.45;
  opacity: 0.92;
  flex: 1;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.quadrant__cta {
  margin-top: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.quadrant__cta::after {
  content: " →";
}

/* Element Gate — fantasy portal glow on deep stone */
.quadrant--element-gate {
  background: linear-gradient(165deg, #1a2332 0%, #0d1218 45%, #0a1620 100%);
  border: 1px solid rgba(34, 211, 238, 0.25);
  box-shadow: 0 0 40px rgba(34, 211, 238, 0.08);
}

.quadrant--element-gate:not(.quadrant--static):hover {
  box-shadow: 0 12px 48px rgba(34, 211, 238, 0.18);
}

.quadrant--element-gate .quadrant__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    #0d1218 0%,
    transparent 45%,
    rgba(34, 211, 238, 0.12) 100%
  );
  pointer-events: none;
}

.quadrant--element-gate .quadrant__title {
  font-weight: 700;
  color: #e0f7fa;
  text-shadow: 0 0 24px rgba(34, 211, 238, 0.35);
}

.quadrant--element-gate .quadrant__meta {
  color: #67e8f9;
}

.quadrant--element-gate .quadrant__cta {
  color: #22d3ee;
}

.quadrant--element-gate .quadrant__cta::after {
  content: none;
}

/* Golden Bit — neon ticket / arcade */
.quadrant--golden-bit {
  background: #000;
  border: 2px solid #39ff14;
  box-shadow: 0 0 20px rgba(57, 255, 20, 0.35),
    inset 0 0 30px rgba(57, 255, 20, 0.04);
}

.quadrant--golden-bit:hover {
  box-shadow: 0 0 36px rgba(57, 255, 20, 0.55),
    inset 0 0 40px rgba(57, 255, 20, 0.06);
}

.quadrant--golden-bit .quadrant__media {
  background: #000;
}

.quadrant--golden-bit .quadrant__media img {
  object-fit: cover;
  object-position: center;
}

.quadrant--golden-bit .quadrant__title {
  font-family: var(--font-pixel);
  font-size: clamp(0.75rem, 2vw, 0.95rem);
  color: #39ff14;
  text-shadow: 0 0 8px rgba(57, 255, 20, 0.8);
  line-height: 1.6;
}

.quadrant--golden-bit .quadrant__meta,
.quadrant--golden-bit .quadrant__desc {
  color: #b8ffb0;
}

.quadrant--golden-bit .quadrant__cta {
  color: #39ff14;
}

/* Mostly Losses — trading terminal dashboard */
.quadrant--mostly-losses {
  background: #0f172a;
  border: 1px solid rgba(148, 163, 184, 0.2);
  font-family: var(--font-sans);
}

.quadrant--mostly-losses:hover {
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.9);
  border-color: rgba(96, 165, 250, 0.35);
}

.quadrant--mostly-losses .quadrant__media {
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}

.quadrant--mostly-losses .quadrant__media img {
  object-fit: cover;
  object-position: top center;
}

.quadrant--mostly-losses .quadrant__title {
  font-weight: 600;
  color: #f1f5f9;
}

.quadrant--mostly-losses .quadrant__meta {
  color: #64748b;
}

.quadrant--mostly-losses .quadrant__desc {
  color: #94a3b8;
  font-size: 0.85rem;
}

.quadrant--mostly-losses .quadrant__cta {
  color: #4ade80;
}

/* Record Reflect Recover — icon orange (#f39233) on a warm dark shell */
.quadrant--rrr {
  background: linear-gradient(
    155deg,
    color-mix(in srgb, var(--gc-color-rrr) 28%, #120c08) 0%,
    #140f0c 42%,
    #0a0806 100%
  );
  border: 1px solid color-mix(in srgb, var(--gc-color-rrr) 50%, transparent);
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--gc-color-rrr) 22%, transparent);
}

.quadrant--rrr::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 90% 70% at 100% 0%,
    color-mix(in srgb, var(--gc-color-rrr) 32%, transparent),
    transparent 58%
  );
  pointer-events: none;
  z-index: 0;
}

.quadrant--rrr > .quadrant__media,
.quadrant--rrr > .quadrant__body {
  position: relative;
  z-index: 1;
}

.quadrant--rrr:hover {
  box-shadow: 0 12px 44px color-mix(in srgb, var(--gc-color-rrr) 38%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--gc-color-rrr) 28%, transparent);
  border-color: color-mix(in srgb, var(--gc-color-rrr) 72%, transparent);
}

.quadrant--rrr .quadrant__media {
  background: linear-gradient(
    180deg,
    #1a100a 0%,
    color-mix(in srgb, var(--gc-color-rrr) 18%, #1a100a) 100%
  );
}

.quadrant--rrr .quadrant__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    color-mix(in srgb, var(--gc-color-rrr) 45%, #140f0c) 0%,
    transparent 55%
  );
  pointer-events: none;
}

.quadrant--rrr .quadrant__media img {
  object-fit: cover;
  object-position: center top;
}

.quadrant--rrr .quadrant__title {
  font-weight: 700;
  color: var(--gc-color-rrr-cream);
}

.quadrant--rrr .quadrant__meta {
  color: var(--gc-color-rrr);
  text-shadow: 0 0 20px color-mix(in srgb, var(--gc-color-rrr) 40%, transparent);
}

.quadrant--rrr .quadrant__desc {
  color: #f0d4b8;
}

.quadrant--rrr .quadrant__cta {
  color: var(--gc-color-rrr);
  font-weight: 500;
}

.site-footer {
  padding: 1.5rem clamp(1rem, 3vw, 2rem) 2.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--gc-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.site-footer a {
  color: var(--gc-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.site-footer a:hover {
  color: var(--gc-text);
}

/* Element Gate product page (element-gate/index.html) — fantasy portal theme on shared tokens */

.page-element-gate {
  background-color: #060a10;
  background-image: radial-gradient(
      ellipse 100% 60% at 50% 0%,
      rgba(34, 211, 238, 0.14),
      transparent 55%
    ),
    radial-gradient(
      ellipse 70% 40% at 80% 100%,
      rgba(16, 185, 129, 0.08),
      transparent 50%
    );
}

.eg-skip {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.eg-skip:focus {
  position: fixed;
  left: 1rem;
  top: 1rem;
  width: auto;
  height: auto;
  padding: 0.5rem 1rem;
  background: #0d1218;
  border: 1px solid #22d3ee;
  z-index: 100;
}

.eg-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  padding: 1rem clamp(1rem, 3vw, 2rem);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #67e8f9;
  border-bottom: 1px solid rgba(34, 211, 238, 0.15);
}

.eg-nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #a5f3fc;
  text-decoration: none;
}

.eg-nav__logo {
  width: 1.75rem;
  height: auto;
  flex-shrink: 0;
}

.eg-nav__brand:hover {
  color: #e0f7fa;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.eg-nav__sep {
  opacity: 0.5;
}

.eg-nav__current {
  color: #e0f7fa;
}

.eg-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem) 2rem;
}

.eg-hero {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  padding: clamp(1.5rem, 4vw, 3rem) 0;
}

@media (min-width: 900px) {
  .eg-hero {
    grid-template-columns: 1.15fr 1fr;
    align-items: center;
  }
}

.eg-hero__visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(34, 211, 238, 0.3);
  box-shadow: 0 0 60px rgba(34, 211, 238, 0.12);
}

.eg-hero__visual img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.eg-hero__glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(6, 10, 16, 0.85) 0%,
    transparent 40%,
    rgba(34, 211, 238, 0.08) 100%
  );
  pointer-events: none;
}

.eg-hero__meta {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #67e8f9;
}

.eg-hero__title {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.1;
  color: #e0f7fa;
  text-shadow: 0 0 40px rgba(34, 211, 238, 0.25);
}

.eg-hero__lead {
  margin: 0 0 1.75rem;
  font-size: clamp(1rem, 2.2vw, 1.15rem);
  color: #b8c5d0;
  max-width: 34rem;
}

.eg-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.eg-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.eg-btn--primary {
  background: rgba(34, 211, 238, 0.15);
  border-color: rgba(34, 211, 238, 0.55);
  color: #e0f7fa;
  box-shadow: 0 0 24px rgba(34, 211, 238, 0.15);
}

.eg-btn--primary:not(.eg-btn--disabled):hover {
  background: rgba(34, 211, 238, 0.28);
  box-shadow: 0 0 32px rgba(34, 211, 238, 0.28);
}

.eg-btn--disabled {
  opacity: 0.85;
  cursor: default;
}

.eg-btn--ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.15);
  color: #a5f3fc;
}

.eg-btn--ghost:hover {
  border-color: rgba(34, 211, 238, 0.4);
  color: #e0f7fa;
}

.eg-features {
  padding: 0 0 clamp(2rem, 5vw, 3rem);
}

.eg-features__heading {
  margin: 0 0 1.25rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: #a5f3fc;
  letter-spacing: 0.02em;
}

.eg-features__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

@media (min-width: 700px) {
  .eg-features__list {
    grid-template-columns: repeat(3, 1fr);
  }
}

.eg-feature {
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  background: rgba(13, 18, 24, 0.75);
  border: 1px solid rgba(34, 211, 238, 0.12);
}

.eg-feature__title {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  color: #e0f7fa;
}

.eg-feature__text {
  margin: 0;
  font-size: 0.9rem;
  color: #94a3b8;
  line-height: 1.55;
}