:root {
  color-scheme: dark;
  --ink: #edf4ec;
  --muted: #a9b8b1;
  --soft: #6f837a;
  --line: rgba(237, 244, 236, 0.18);
  --panel: rgba(19, 29, 27, 0.74);
  --panel-strong: rgba(24, 40, 36, 0.92);
  --green: #8de6ad;
  --aqua: #7bd3d0;
  --gold: #f0cf7a;
  --rose: #d98e9f;
  --space: #09110f;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 8%, rgba(141, 230, 173, 0.16), transparent 30rem),
    radial-gradient(circle at 86% 16%, rgba(240, 207, 122, 0.13), transparent 24rem),
    linear-gradient(145deg, #08100f 0%, #111919 48%, #0c1115 100%);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(237, 244, 236, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(237, 244, 236, 0.025) 1px, transparent 1px);
  background-size: 42px 42px;
  content: "";
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

a {
  color: inherit;
  text-decoration: none;
}

.site-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  border-bottom: 1px solid var(--line);
  background: rgba(9, 17, 15, 0.82);
  backdrop-filter: blur(18px);
}

.brand,
.top-nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92rem;
  color: var(--ink);
}

.brand-mark {
  width: 13px;
  height: 13px;
  border: 1px solid var(--green);
  background: linear-gradient(135deg, var(--green), var(--aqua));
  box-shadow: 0 0 24px rgba(141, 230, 173, 0.8);
  transform: rotate(45deg);
}

.top-nav {
  gap: 8px;
}

.top-nav a {
  min-width: 70px;
  padding: 9px 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.88rem;
  text-align: center;
}

.top-nav a:hover,
.top-nav a:focus-visible,
.top-nav a[aria-current="page"] {
  border-color: var(--line);
  color: var(--ink);
  outline: none;
}

.hero {
  position: relative;
  display: grid;
  align-content: end;
  min-height: clamp(560px, 82vh, 760px);
  padding: 72px 0 88px;
  overflow: hidden;
}

.kicker {
  margin: 0 0 16px;
  color: var(--green);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-size: clamp(3.2rem, 12vw, 8.8rem);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2rem, 5vw, 4.4rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 14px;
  font-size: 1.08rem;
}

.intro {
  max-width: 640px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.7;
}

.doorways {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.doorways a {
  padding: 12px 15px;
  border: 1px solid rgba(141, 230, 173, 0.28);
  border-radius: 8px;
  background: rgba(19, 29, 27, 0.58);
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86rem;
}

.page-hero {
  display: grid;
  align-content: end;
  min-height: clamp(430px, 66vh, 620px);
  padding: 72px 0 76px;
  border-bottom: 1px solid var(--line);
}

.signal-field {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.84;
}

.signal-field span {
  position: absolute;
  display: block;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), var(--gold), transparent);
  transform-origin: left center;
  animation: pulse 7s ease-in-out infinite;
}

.signal-field span:nth-child(1) {
  top: 24%;
  left: 2%;
  width: 72%;
}

.signal-field span:nth-child(2) {
  top: 38%;
  right: 4%;
  width: 38%;
  animation-delay: -2s;
}

.signal-field span:nth-child(3) {
  bottom: 28%;
  left: 24%;
  width: 54%;
  animation-delay: -4s;
}

.signal-field span:nth-child(4) {
  bottom: 16%;
  right: 12%;
  width: 26%;
  background: linear-gradient(90deg, transparent, var(--rose), var(--aqua), transparent);
  animation-delay: -1s;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.2;
    transform: scaleX(0.72);
  }

  50% {
    opacity: 1;
    transform: scaleX(1);
  }
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  padding: 80px 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  grid-column: 1 / -1;
  padding-right: 18px;
}

.section-heading h2,
.room-links > div h2 {
  font-size: clamp(2rem, 4.2vw, 3.7rem);
}

.entry {
  min-height: 310px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.signal-atlas {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(240px, 0.68fr) minmax(0, 1.32fr);
  gap: 28px;
  align-items: stretch;
  margin-bottom: 62px;
}

.atlas-copy {
  display: grid;
  align-content: end;
  min-height: 360px;
}

.atlas-copy h2 {
  font-size: clamp(2.2rem, 5.6vw, 5.2rem);
}

.atlas-copy p {
  max-width: 440px;
  color: var(--muted);
  line-height: 1.7;
}

.atlas-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.atlas-controls button {
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid rgba(141, 230, 173, 0.26);
  border-radius: 8px;
  background: rgba(19, 29, 27, 0.64);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
}

.atlas-controls button:hover,
.atlas-controls button:focus-visible,
.atlas-controls button.is-active {
  border-color: rgba(141, 230, 173, 0.62);
  color: var(--ink);
  outline: none;
  box-shadow: 0 0 22px rgba(141, 230, 173, 0.12);
}

.atlas-frame {
  position: relative;
  min-height: 360px;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(141, 230, 173, 0.32);
  border-radius: 8px;
  background: var(--panel-strong);
}

.atlas-frame img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
  transform: scale(1.2);
  filter: saturate(0.92) contrast(1.05);
}

.atlas-frame figcaption {
  position: absolute;
  right: 18px;
  bottom: 18px;
  left: 18px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
  color: var(--ink);
  font-size: 0.82rem;
}

.atlas-frame figcaption::before {
  position: absolute;
  inset: -44px -18px -18px;
  z-index: -1;
  background: linear-gradient(180deg, transparent, rgba(9, 17, 15, 0.88));
  content: "";
}

.atlas-frame figcaption span {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.atlas-frame figcaption em {
  color: var(--muted);
  font-style: normal;
  text-align: right;
}

.entry time {
  display: block;
  margin-bottom: 34px;
  color: var(--gold);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
}

.entry p,
.lexicon dd,
.window p,
.site-footer {
  color: var(--muted);
  line-height: 1.65;
}

.lexicon,
.window,
.room-links {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
  gap: 40px;
  padding: 80px 0;
  border-top: 1px solid var(--line);
}

.room-links {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.room-links > div {
  grid-column: 1 / -1;
}

.room-link,
.weather-card,
.return-card {
  display: grid;
  gap: 14px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.room-link span,
.weather-card span,
.return-card span {
  color: var(--gold);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
}

.room-link strong,
.weather-card strong,
.return-card strong {
  color: var(--ink);
  font-size: 1.08rem;
}

.room-link em {
  color: var(--muted);
  font-style: normal;
  line-height: 1.55;
}

.weather-board,
.return-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding: 80px 0;
}

.weather-card p,
.return-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.return-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.return-panel {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
  gap: 40px;
  padding: 80px 0;
  border-top: 1px solid var(--line);
}

.return-copy p {
  max-width: 740px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.75;
}

.return-copy strong {
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-weight: 500;
}

.listening-window {
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.28fr);
  gap: 40px;
  align-items: stretch;
  padding: 80px 0;
  border-top: 1px solid var(--line);
}

.listening-copy {
  align-self: end;
}

.listening-copy h2 {
  font-size: clamp(2rem, 4.8vw, 4.6rem);
}

.listening-copy p {
  max-width: 520px;
  color: var(--muted);
  line-height: 1.7;
}

.listening-panel {
  display: grid;
  align-content: space-between;
  min-height: 360px;
  padding: 22px;
  border: 1px solid rgba(141, 230, 173, 0.32);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(123, 211, 208, 0.07), transparent 42%),
    var(--panel-strong);
  box-shadow: inset 0 0 48px rgba(141, 230, 173, 0.08);
}

.listening-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.listening-tabs button {
  min-height: 40px;
  padding: 0 13px;
  border: 1px solid rgba(141, 230, 173, 0.26);
  border-radius: 8px;
  background: rgba(9, 17, 15, 0.44);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
}

.listening-tabs button:hover,
.listening-tabs button:focus-visible,
.listening-tabs button.is-active {
  border-color: rgba(141, 230, 173, 0.62);
  color: var(--ink);
  outline: none;
  box-shadow: 0 0 22px rgba(141, 230, 173, 0.12);
}

.listening-text {
  margin: 0;
  color: var(--green);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: clamp(1rem, 2.1vw, 1.42rem);
  line-height: 1.7;
  white-space: pre-wrap;
}

.house-log {
  display: grid;
  grid-template-columns: minmax(220px, 0.68fr) minmax(0, 1.32fr);
  gap: 40px;
  align-items: stretch;
  padding: 80px 0;
  border-top: 1px solid var(--line);
}

.house-log-copy {
  align-self: end;
}

.house-log-copy h2 {
  font-size: clamp(2rem, 4.6vw, 4.3rem);
}

.house-note {
  display: grid;
  align-content: end;
  min-height: 320px;
  padding: 28px;
  border: 1px solid rgba(240, 207, 122, 0.32);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(240, 207, 122, 0.1), transparent 42%),
    var(--panel);
}

.house-note time {
  color: var(--gold);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
}

.house-note p {
  max-width: 680px;
  margin: 34px 0 22px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.75;
}

.house-note a {
  width: fit-content;
  padding: 11px 14px;
  border: 1px solid rgba(240, 207, 122, 0.38);
  border-radius: 8px;
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.84rem;
}

.house-note a:hover,
.house-note a:focus-visible {
  border-color: rgba(240, 207, 122, 0.72);
  outline: none;
  box-shadow: 0 0 22px rgba(240, 207, 122, 0.12);
}

.long-entry {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
  gap: 26px 40px;
  padding: 80px 0;
  border-top: 1px solid var(--line);
}

.long-entry h2 {
  grid-column: 2;
}

.long-entry p:not(.kicker),
.long-entry .signal-poem {
  grid-column: 2;
}

.long-entry p:not(.kicker) {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.75;
}

.lexicon-page {
  border-top: 0;
}

.signal-hero h1 {
  max-width: 920px;
}

.transmission {
  padding: 80px 0;
  border-top: 1px solid var(--line);
}

.signal-sheet {
  min-height: 520px;
  margin: 0;
  padding: clamp(24px, 5vw, 52px);
  border: 1px solid rgba(141, 230, 173, 0.34);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(123, 211, 208, 0.07), transparent 38%),
    linear-gradient(90deg, rgba(240, 207, 122, 0.05), transparent 32%),
    var(--panel-strong);
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: clamp(1rem, 2.8vw, 2rem);
  line-height: 1.65;
  white-space: pre-wrap;
  box-shadow: inset 0 0 58px rgba(141, 230, 173, 0.09);
}

.lexicon dl {
  display: grid;
  gap: 14px;
  margin: 0;
}

.lexicon dl div {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.lexicon dt {
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.lexicon dd {
  margin: 0;
}

.window {
  align-items: stretch;
  min-height: 420px;
}

.window-copy {
  align-self: end;
}

.signal-poem {
  display: grid;
  align-content: end;
  min-height: 320px;
  margin: 0;
  padding: 28px;
  border: 1px solid rgba(141, 230, 173, 0.32);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(123, 211, 208, 0.06), transparent),
    var(--panel-strong);
  color: var(--green);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: clamp(1rem, 2.2vw, 1.55rem);
  line-height: 1.7;
  white-space: pre-wrap;
  box-shadow: inset 0 0 42px rgba(141, 230, 173, 0.08);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 40px;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 880px) {
  .section-grid,
  .signal-atlas,
  .lexicon,
  .window,
  .room-links,
  .weather-board,
  .return-grid,
  .return-panel,
  .listening-window,
  .house-log,
  .long-entry {
    grid-template-columns: 1fr;
  }

  .section-grid {
    padding-top: 64px;
  }

  .signal-atlas {
    margin-bottom: 44px;
  }

  .atlas-copy {
    min-height: auto;
  }

  .entry {
    min-height: auto;
  }

  .lexicon dl div {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .long-entry h2,
  .long-entry p:not(.kicker),
  .long-entry .signal-poem {
    grid-column: auto;
  }
}

@media (max-width: 640px) {
  .site-shell {
    width: min(100% - 24px, 1120px);
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
    padding: 14px 0;
  }

  .top-nav {
    width: 100%;
  }

  .top-nav a {
    flex: 1;
    min-width: 0;
    padding-inline: 8px;
  }

  .hero {
    min-height: 620px;
    padding-top: 48px;
  }

  .intro {
    font-size: 1rem;
  }

  .atlas-frame figcaption {
    align-items: flex-start;
    flex-direction: column;
  }

  .atlas-frame figcaption em {
    text-align: left;
  }

  .lexicon,
  .window,
  .listening-window,
  .house-log,
  .section-grid,
  .room-links,
  .weather-board,
  .long-entry,
  .transmission {
    padding: 56px 0;
  }

  .site-footer {
    flex-direction: column;
    gap: 8px;
  }
}