:root {
  --bg: #020b22;
  --bg-soft: rgba(8, 23, 56, 0.76);
  --line: rgba(88, 231, 255, 0.2);
  --text: #e9fbff;
  --muted: rgba(201, 236, 255, 0.72);
  --accent: #39e7ff;
  --accent-strong: #8cf6ff;
  --glow: rgba(57, 231, 255, 0.28);
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --sans: "Avenir Next", "Century Gothic", "Segoe UI", sans-serif;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 16%, rgba(57, 231, 255, 0.16), transparent 0 22%),
    radial-gradient(circle at 76% 18%, rgba(24, 94, 255, 0.16), transparent 0 20%),
    radial-gradient(circle at 50% 120%, rgba(45, 104, 255, 0.18), transparent 0 30%),
    linear-gradient(145deg, #010716 0%, #041333 42%, #031024 72%, #010611 100%);
  color: var(--text);
  font-family: var(--sans);
  overflow-x: hidden;
  position: relative;
}

body.page-body {
  background:
    radial-gradient(circle at 50% 0%, rgba(57, 231, 255, 0.15), transparent 0 24%),
    radial-gradient(circle at 12% 22%, rgba(31, 80, 255, 0.14), transparent 0 22%),
    linear-gradient(180deg, #010818 0%, #041330 58%, #020914 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

body::before {
  opacity: 0.65;
  background-image:
    radial-gradient(circle at 14% 22%, rgba(255, 255, 255, 0.8) 0 1px, transparent 1.6px),
    radial-gradient(circle at 82% 18%, rgba(57, 231, 255, 0.75) 0 1px, transparent 1.7px),
    radial-gradient(circle at 67% 62%, rgba(255, 255, 255, 0.65) 0 1px, transparent 1.6px),
    radial-gradient(circle at 22% 78%, rgba(140, 246, 255, 0.75) 0 1px, transparent 1.8px),
    radial-gradient(circle at 90% 74%, rgba(255, 255, 255, 0.65) 0 1px, transparent 1.5px);
  background-size: 340px 340px, 460px 460px, 520px 520px, 620px 620px, 700px 700px;
}

body::after {
  background:
    linear-gradient(90deg, rgba(57, 231, 255, 0.06), transparent 24%, transparent 76%, rgba(57, 231, 255, 0.04)),
    radial-gradient(circle at 50% 50%, transparent 0 58%, rgba(57, 231, 255, 0.05) 72%, transparent 84%);
  mix-blend-mode: screen;
}

a {
  color: inherit;
}

.ambient {
  position: fixed;
  inset: auto;
  width: 34rem;
  height: 34rem;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.6;
  pointer-events: none;
}

.ambient-left {
  top: -10rem;
  left: -8rem;
  background: rgba(57, 231, 255, 0.18);
}

.ambient-right {
  top: 10rem;
  right: -8rem;
  background: rgba(25, 97, 255, 0.18);
}

.topbar,
.footer,
.page-shell {
  width: min(1160px, calc(100vw - 2rem));
  margin: 0 auto;
}

.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
}

.wordmark {
  font-size: 1rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  text-decoration: none;
}

.topbar-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

main {
  position: relative;
  z-index: 1;
  padding-bottom: 5rem;
}

.hero,
.directory,
.principles {
  width: min(1160px, calc(100vw - 2rem));
  margin: 0 auto;
}

.hero {
  min-height: calc(100svh - 5rem);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
  padding: 2rem 0 4rem;
}

.eyebrow,
.panel-kicker,
.signal-label {
  margin: 0 0 0.85rem;
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1,
.directory h2,
.principles h2,
.page-hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(3.3rem, 8vw, 6.8rem);
  line-height: 0.96;
  font-weight: 400;
  letter-spacing: -0.04em;
}

.hero-text,
.manifesto p,
.page-intro,
.site-item p,
.featured-copy p,
.principle-list p,
.page-section p,
.page-section li {
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.7;
}

.hero-text {
  max-width: 40rem;
  margin: 1.5rem 0 0;
}

.hero-actions,
.page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.8rem 1.2rem;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid transparent;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.button:hover,
.button:focus-visible,
.site-item:hover,
.site-item:focus-visible,
.jump-link:hover,
.jump-link:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--accent);
  color: #031628;
}

.button-secondary {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}

.hero-panel,
.featured-site,
.page-panel {
  position: relative;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(5, 23, 58, 0.84), rgba(3, 14, 34, 0.68));
  backdrop-filter: blur(18px);
  border-radius: 2rem;
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(149, 244, 255, 0.08), 0 18px 60px rgba(2, 10, 28, 0.32);
}

.hero-panel {
  padding: 1.5rem;
  min-height: 30rem;
}

.signal-stack {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.signal-stack div {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.signal-stack strong {
  display: block;
  font-size: 1.35rem;
  font-weight: 500;
}

.hero-orbit {
  position: absolute;
  inset: auto -4rem -4rem auto;
  width: 18rem;
  height: 18rem;
}

.hero-orbit span {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(57, 231, 255, 0.22);
  animation: pulse 9s linear infinite;
}

.hero-orbit span:nth-child(2) {
  inset: 1.6rem;
  animation-duration: 7s;
}

.hero-orbit span:nth-child(3) {
  inset: 3.4rem;
  animation-duration: 5s;
}

.manifesto {
  margin: 0 auto 4rem;
  padding: 1.5rem 0 0.5rem;
  width: min(860px, calc(100vw - 2rem));
  text-align: center;
}

.manifesto p {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.1;
}

.directory-head,
.principles {
  display: grid;
  gap: 1.5rem;
}

.directory-head {
  grid-template-columns: 1fr auto;
  align-items: end;
  margin-bottom: 2rem;
}

.directory h2,
.principles h2 {
  font-size: clamp(2.1rem, 4vw, 3.8rem);
}

.controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(12rem, 1fr));
  gap: 0.8rem;
}

.control {
  display: grid;
  gap: 0.45rem;
  min-width: 0;
}

.control span {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.control input,
.control select {
  width: 100%;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(6, 21, 31, 0.7);
  color: var(--text);
  padding: 0.9rem 1rem;
  font: inherit;
}

.directory-layout {
  display: grid;
  grid-template-columns: minmax(18rem, 24rem) 1fr;
  gap: 1rem;
}

.featured-site {
  min-height: 28rem;
  padding: 1.5rem;
}

.featured-copy h3,
.site-item h3,
.page-section h2 {
  margin: 0;
  font-size: 1.6rem;
  line-height: 1.1;
}

.featured-copy p {
  margin: 1rem 0 0;
}

.featured-meta,
.site-meta,
.page-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.25rem;
}

.featured-meta span,
.site-meta span,
.page-meta span {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.74rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
}

.featured-visual {
  margin-top: 1.4rem;
  height: 12rem;
  border-radius: 1.4rem;
  border: 1px solid rgba(57, 231, 255, 0.18);
  background:
    radial-gradient(circle at 28% 34%, rgba(57, 231, 255, 0.28), transparent 0 18%),
    radial-gradient(circle at 74% 48%, rgba(45, 104, 255, 0.24), transparent 0 22%),
    linear-gradient(180deg, rgba(5, 27, 61, 0.94), rgba(3, 14, 36, 0.88));
}

.featured-actions {
  margin-top: 1.5rem;
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.site-list {
  display: grid;
  gap: 0.8rem;
}

.site-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  padding: 1.25rem 1.35rem;
  border-radius: 1.5rem;
  border: 1px solid var(--line);
  background: rgba(4, 18, 45, 0.6);
  text-decoration: none;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.site-item:hover,
.site-item:focus-visible {
  border-color: rgba(57, 231, 255, 0.42);
  background: rgba(6, 24, 58, 0.76);
}

.site-item p {
  margin: 0.7rem 0 0;
}

.jump-link {
  align-self: center;
  justify-self: end;
  padding: 0.75rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  text-decoration: none;
  white-space: nowrap;
}

.empty-state {
  padding: 2rem;
  border: 1px dashed var(--line);
  border-radius: 1.5rem;
  color: var(--muted);
}

.principles {
  grid-template-columns: 0.7fr 1.3fr;
  margin-top: 5rem;
  align-items: start;
}

.principle-list {
  display: grid;
  gap: 1.5rem;
}

.principle-list article {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.principle-list span {
  color: var(--accent-strong);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
}

.principle-list h3 {
  margin: 0.65rem 0 0.35rem;
  font-size: 1.4rem;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 0 2.5rem;
  color: var(--muted);
}

.footer a {
  color: var(--accent);
}

.page-shell {
  padding: 2rem 0 4rem;
}

.page-hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.5rem;
  align-items: start;
}

.page-intro {
  max-width: 42rem;
  margin-top: 1.2rem;
}

.page-panel {
  min-height: 24rem;
  padding: 1.5rem;
}

.page-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 3rem;
}

.page-section {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.page-section ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
}

.page-section li + li {
  margin-top: 0.55rem;
}

@keyframes pulse {
  from {
    transform: scale(0.96);
    opacity: 0.9;
  }
  50% {
    opacity: 0.5;
  }
  to {
    transform: scale(1.04);
    opacity: 0.9;
  }
}

@media (max-width: 900px) {
  .topbar,
  .hero,
  .directory,
  .principles,
  .footer,
  .page-shell,
  .page-hero,
  .page-grid {
    grid-template-columns: 1fr;
  }

  .topbar,
  .footer {
    display: grid;
  }

  .directory-head,
  .controls,
  .directory-layout,
  .page-hero,
  .page-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 1rem;
  }

  .hero-panel,
  .featured-site,
  .page-panel {
    min-height: auto;
  }

  .site-item {
    grid-template-columns: 1fr;
  }

  .jump-link {
    justify-self: start;
  }

  .topbar-meta {
    gap: 0.45rem;
  }
}