:root {
  --stg-bg: #0a0d0f;
  --stg-bg-soft: #10161a;
  --stg-panel: #151d22;
  --stg-panel-2: #1a252b;
  --stg-ink: #f3f6f4;
  --stg-muted: #a8b6b5;
  --stg-rule: #314148;
  --stg-signal: #ff7440;
  --stg-signal-2: #ff9d62;
  --stg-mint: #65d5bc;
  --stg-archive: #bba2e8;
  --stg-shadow: 0 22px 60px rgba(0, 0, 0, 0.28);
  --stg-radius: 1.05rem;
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--stg-bg);
  color: var(--stg-ink);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--stg-bg); }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--stg-ink);
  background:
    radial-gradient(circle at 82% 2%, rgba(101, 213, 188, 0.08), transparent 25rem),
    radial-gradient(circle at 8% 24%, rgba(255, 116, 64, 0.07), transparent 24rem),
    linear-gradient(180deg, #0a0d0f 0%, #0d1215 50%, #090c0e 100%);
  font: 400 1rem/1.68 Charter, "Bitstream Charter", "Sitka Text", Georgia, serif;
  text-rendering: optimizeLegibility;
}
body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  pointer-events: none;
  opacity: 0.16;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 42px 42px;
}
::selection { color: #111; background: var(--stg-mint); }
img { max-width: 100%; }
a { color: var(--stg-mint); text-decoration-thickness: 0.08em; text-underline-offset: 0.2em; }
a:hover, a:focus-visible { color: #fff; }
:focus-visible { outline: 3px solid var(--stg-signal-2); outline-offset: 4px; }

.stg-shell { width: min(76rem, calc(100% - 2.5rem)); margin-inline: auto; }
.stg-skip {
  position: fixed;
  top: 0.75rem;
  left: -9999px;
  z-index: 100;
  padding: 0.7rem 1rem;
  color: #0b0e10;
  background: var(--stg-mint);
  border-radius: 0.45rem;
  font: 800 0.82rem/1 ui-sans-serif, sans-serif;
  text-decoration: none;
}
.stg-skip:focus { left: 0.75rem; }

.stg-board {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(168, 182, 181, 0.2);
  background: rgba(9, 13, 15, 0.9);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.16);
  backdrop-filter: blur(18px);
}
.stg-board__row {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
  min-height: 5rem;
}
.stg-sign {
  display: grid;
  flex: 0 0 auto;
  grid-template-columns: auto auto auto;
  align-items: baseline;
  color: #fff;
  font: 900 1.03rem/1 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: -0.025em;
  text-decoration: none;
  text-transform: uppercase;
}
.stg-sign span { margin-inline: 0.18rem; color: var(--stg-signal); }
.stg-sign small {
  grid-column: 1 / -1;
  margin-top: 0.38rem;
  color: var(--stg-muted);
  font: 650 0.62rem/1.2 ui-monospace, "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.075em;
  text-transform: none;
}
.stg-cues {
  display: flex;
  gap: 0.2rem;
  align-items: center;
  justify-content: flex-end;
  font: 760 0.66rem/1 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}
.stg-cue {
  padding: 0.65rem 0.5rem;
  color: #b9c4c3;
  border-radius: 0.4rem;
  text-decoration: none;
  white-space: nowrap;
}
.stg-cue:hover, .stg-cue:focus-visible, .stg-current {
  color: #fff;
  background: rgba(255, 255, 255, 0.07);
}
.stg-current { box-shadow: inset 0 -2px var(--stg-signal); }

.stg-trace {
  width: min(76rem, calc(100% - 2.5rem));
  margin-inline: auto;
  padding-top: 1.4rem;
  color: var(--stg-muted);
  font: 700 0.72rem/1.3 ui-monospace, "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.stg-trace ol { display: flex; flex-wrap: wrap; gap: 0.35rem 0.75rem; margin: 0; padding: 0; list-style: none; }
.stg-trace li:not(:last-child)::after { margin-left: 0.75rem; color: var(--stg-rule); content: "/"; }

.stg-hero { padding: clamp(2.8rem, 6vw, 5.5rem) 0 2.4rem; }
.stg-hero--home {
  position: relative;
  overflow: hidden;
  min-height: 31rem;
  padding: clamp(2.5rem, 5vw, 4.4rem) 0;
  border-bottom: 1px solid var(--stg-rule);
  background:
    linear-gradient(105deg, rgba(255, 116, 64, 0.13), transparent 36%),
    linear-gradient(155deg, #10171b 0%, #0e1417 68%, #121b1f 100%);
}
.stg-hero--home::after {
  position: absolute;
  right: -7rem;
  bottom: -13rem;
  width: 35rem;
  aspect-ratio: 1;
  content: "";
  border: 1px solid rgba(101, 213, 188, 0.18);
  border-radius: 50%;
  box-shadow: inset 0 0 0 4rem rgba(101, 213, 188, 0.025), inset 0 0 0 9rem rgba(255, 116, 64, 0.02);
}
.stg-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(22rem, 0.92fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.stg-hero__visual {
  position: relative;
  margin: 0;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border: 1px solid rgba(168, 182, 181, 0.27);
  border-radius: var(--stg-radius);
  box-shadow: var(--stg-shadow);
  transform: rotate(1.25deg);
}
.stg-hero__visual::before {
  position: absolute;
  inset: 0;
  z-index: 1;
  content: "";
  background: linear-gradient(180deg, transparent 48%, rgba(4, 7, 8, 0.72));
}
.stg-hero__visual img { display: block; width: 100%; height: 100%; object-fit: cover; }
.stg-hero__visual figcaption {
  position: absolute;
  right: 1rem;
  bottom: 0.8rem;
  left: 1rem;
  z-index: 2;
  color: #eef3f1;
  font: 650 0.72rem/1.4 ui-monospace, "SFMono-Regular", Consolas, monospace;
}
.stg-label {
  margin: 0 0 0.8rem;
  color: var(--stg-mint);
  font: 800 0.7rem/1 ui-monospace, "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.stg-hero h1, .stg-atlas-intro h1, .stg-article h1 {
  max-width: 18ch;
  margin: 0;
  color: #fff;
  font: 900 clamp(2.65rem, 6.7vw, 5.7rem)/0.93 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: -0.065em;
  text-wrap: balance;
}
.stg-hero--home h1 { max-width: 12ch; }
.stg-lede {
  max-width: 46rem;
  margin: 1.25rem 0;
  color: #bdc8c6;
  font-size: clamp(1.05rem, 1.7vw, 1.28rem);
  line-height: 1.55;
}
.stg-meta { color: var(--stg-muted); font: 650 0.78rem/1.5 ui-monospace, "SFMono-Regular", Consolas, monospace; }
.stg-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.7rem 0 2rem; }
.stg-button {
  display: inline-flex;
  min-height: 2.9rem;
  padding: 0.8rem 1.05rem;
  align-items: center;
  justify-content: center;
  color: #111619;
  border: 1px solid var(--stg-signal);
  border-radius: 0.55rem;
  background: var(--stg-signal);
  font: 850 0.77rem/1 ui-sans-serif, sans-serif;
  letter-spacing: 0.035em;
  text-decoration: none;
}
.stg-button:hover, .stg-button:focus-visible { color: #07090a; background: var(--stg-signal-2); }
.stg-button--ghost { color: #eef3f1; border-color: var(--stg-rule); background: rgba(255, 255, 255, 0.035); }
.stg-button--ghost:hover, .stg-button--ghost:focus-visible { color: #fff; border-color: var(--stg-mint); background: rgba(101, 213, 188, 0.08); }
.stg-stats { display: flex; flex-wrap: wrap; gap: 1rem; margin: 0; }
.stg-stats div { min-width: 7.3rem; padding-left: 0.75rem; border-left: 2px solid var(--stg-rule); }
.stg-stats dt { color: #fff; font: 900 1.25rem/1 ui-sans-serif, sans-serif; }
.stg-stats dd { margin: 0.3rem 0 0; color: var(--stg-muted); font: 650 0.66rem/1.25 ui-monospace, monospace; text-transform: uppercase; }

.stg-section, main > .stg-shell { margin-top: clamp(3rem, 7vw, 5.5rem); }
.stg-section__head { display: grid; grid-template-columns: 10rem 1fr; gap: 1.5rem; align-items: end; margin-bottom: 1.35rem; }
.stg-section__head .stg-label { margin-bottom: 0.45rem; }
.stg-section h2, main > .stg-shell > h2, .stg-atlas-copy h2 {
  margin: 0 0 1.2rem;
  color: #fff;
  font: 850 clamp(1.75rem, 3.2vw, 2.7rem)/1.04 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: -0.045em;
  text-wrap: balance;
}
.stg-section__head h2 { margin: 0; }

.stg-doors { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.stg-door {
  position: relative;
  overflow: hidden;
  padding: 0.62rem;
  border: 1px solid rgba(168, 182, 181, 0.22);
  border-radius: var(--stg-radius);
  background: linear-gradient(145deg, rgba(28, 39, 45, 0.92), rgba(18, 25, 29, 0.96));
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.13);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}
.stg-door::after {
  position: absolute;
  top: 0.62rem;
  right: 0.62rem;
  width: 2.25rem;
  height: 0.25rem;
  content: "";
  border-radius: 1rem;
  background: var(--stg-signal);
  box-shadow: -0.8rem 0 var(--stg-mint);
}
.stg-door:hover { border-color: rgba(101, 213, 188, 0.48); background: linear-gradient(145deg, rgba(31, 45, 51, 0.98), rgba(19, 27, 31, 0.98)); transform: translateY(-4px); }
.stg-door figure { margin: 0; overflow: hidden; aspect-ratio: 16 / 9; border-radius: calc(var(--stg-radius) - 0.38rem); background: var(--stg-panel-2); }
.stg-door img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform 360ms ease; }
.stg-door:hover img { transform: scale(1.025); }
.stg-door > div, .stg-door > h3, .stg-door > p { padding-inline: 0.45rem; }
.stg-door h3 { margin: 1rem 0 0.45rem; font: 820 1.17rem/1.1 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; letter-spacing: -0.025em; }
.stg-door h3 a { color: #fff; text-decoration: none; }
.stg-door p { margin: 0.25rem 0; color: var(--stg-muted); font-size: 0.9rem; line-height: 1.5; }
.stg-count { padding-top: 0.45rem; color: var(--stg-mint) !important; font: 750 0.67rem/1.3 ui-monospace, monospace; letter-spacing: 0.06em; text-transform: uppercase; }

.stg-feed { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.stg-archive-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.9rem; }
.stg-archive-link { padding: 1.05rem; border: 1px solid var(--stg-rule); border-radius: 0.75rem; background: rgba(255, 255, 255, 0.025); }
.stg-archive-link h3 { margin: 0.35rem 0 0.5rem; font: 780 1.05rem/1.2 ui-sans-serif, sans-serif; }
.stg-archive-link h3 a { color: #fff; text-decoration-color: var(--stg-signal); text-underline-offset: 0.2em; }
.stg-archive-link p:last-child { margin-bottom: 0; color: var(--stg-muted); font-size: 0.86rem; }
.stg-wing {
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
  border: 1px solid rgba(168, 182, 181, 0.22);
  border-radius: var(--stg-radius);
  background: var(--stg-panel);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.15);
}
.stg-wing--lead { grid-column: 1 / -1; grid-template: none / minmax(0, 1.32fr) minmax(19rem, 0.68fr); }
.stg-wing__plate, .stg-wing__plate figure { min-height: 0; margin: 0; }
.stg-wing__plate figure { position: relative; height: 100%; }
.stg-wing__plate figcaption { display: none; }
.stg-wing img { display: block; width: 100%; height: 100%; min-height: 13rem; max-height: 20rem; object-fit: cover; }
.stg-wing--lead img { min-height: 22rem; max-height: 30rem; }
.stg-wing__core { padding: 1.15rem 1.15rem 1.3rem; }
.stg-wing h2, .stg-wing h3 { margin: 0.35rem 0 0.55rem; color: #fff; font: 820 clamp(1.25rem, 2vw, 1.65rem)/1.08 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; letter-spacing: -0.035em; }
.stg-wing h2 a, .stg-wing h3 a { color: inherit; text-decoration: none; }
.stg-wing__core > p:not(.stg-label) { color: var(--stg-muted); font-size: 0.94rem; }
.stg-read { display: inline-flex; margin-top: 0.55rem; color: var(--stg-signal-2); font: 800 0.7rem/1 ui-monospace, monospace; letter-spacing: 0.055em; text-decoration: none; text-transform: uppercase; }
.stg-read::after { margin-left: 0.45rem; content: "→"; }

.stg-feature { margin: 0 0 2.5rem; overflow: hidden; border: 1px solid rgba(168, 182, 181, 0.25); border-radius: var(--stg-radius); background: var(--stg-panel); box-shadow: var(--stg-shadow); }
.stg-feature img { display: block; width: 100%; height: clamp(18rem, 42vw, 34rem); object-fit: cover; }
.stg-feature figcaption, .stg-atlas-intro figcaption { padding: 0.75rem 1rem; color: var(--stg-muted); font: 650 0.73rem/1.45 ui-monospace, monospace; }
.stg-article { padding-bottom: 4rem; }
.stg-prose { max-width: 47rem; margin-inline: auto; font-size: 1.05rem; }
.stg-prose p { margin: 0 0 1.15rem; }
.stg-prose h2 { margin: 2.7rem 0 1rem; padding-top: 0.4rem; color: #fff; border-top: 1px solid var(--stg-rule); font: 830 clamp(1.6rem, 3.2vw, 2.25rem)/1.08 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; letter-spacing: -0.04em; }
.stg-prose h3 { margin: 2rem 0 0.65rem; color: #fff; font: 800 1.2rem/1.2 ui-sans-serif, sans-serif; }
.stg-note { margin-top: 2.4rem; padding: 1.25rem 1.35rem; border: 1px solid rgba(101, 213, 188, 0.24); border-left: 4px solid var(--stg-mint); border-radius: 0.7rem; background: linear-gradient(140deg, rgba(101, 213, 188, 0.08), rgba(21, 29, 34, 0.94)); }
.stg-note h2 { margin-top: 0; padding-top: 0; border-top: 0; font-size: 1.25rem; }
.stg-note p { margin: 0.45rem 0; }
.stg-list, .stg-checklist { padding-left: 1.2rem; }
.stg-list li, .stg-checklist li { margin: 0.45rem 0; }
.stg-checklist { margin: 1.15rem 0 1.55rem; list-style: none; }
.stg-checklist li { position: relative; padding-left: 0.6rem; }
.stg-checklist li::before { position: absolute; left: -1rem; color: var(--stg-signal); content: "◆"; font-size: 0.65rem; }
.stg-data { display: grid; grid-template-columns: minmax(9rem, 0.35fr) 1fr; margin: 0 0 2rem; border-top: 1px solid var(--stg-rule); }
.stg-data dt, .stg-data dd { margin: 0; padding: 0.85rem; border-bottom: 1px solid var(--stg-rule); }
.stg-data dt { color: var(--stg-mint); font: 760 0.73rem/1.4 ui-monospace, monospace; letter-spacing: 0.04em; text-transform: uppercase; }

.stg-atlas-intro { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(22rem, 1.2fr); gap: 2rem; align-items: center; }
.stg-atlas-intro figure { margin: 0; overflow: hidden; border: 1px solid var(--stg-rule); border-radius: var(--stg-radius); background: var(--stg-panel); }
.stg-atlas-intro img { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.stg-atlas-copy { margin-top: 2.5rem !important; }
.stg-tablewrap { overflow-x: auto; padding: 0.5rem; border: 1px solid var(--stg-rule); border-radius: var(--stg-radius); background: var(--stg-panel); box-shadow: var(--stg-shadow); }
.stg-tablewrap table { width: 100%; min-width: 66rem; border-collapse: collapse; font-size: 0.86rem; }
.stg-tablewrap caption { padding: 0.7rem; color: var(--stg-muted); text-align: left; font: 700 0.72rem/1.4 ui-monospace, monospace; text-transform: uppercase; }
.stg-tablewrap th, .stg-tablewrap td { padding: 0.78rem; border: 1px solid var(--stg-rule); text-align: left; vertical-align: top; }
.stg-tablewrap thead th { color: var(--stg-mint); background: #10171b; font: 760 0.69rem/1.3 ui-monospace, monospace; letter-spacing: 0.04em; text-transform: uppercase; }
.stg-tablewrap tbody tr:nth-child(even) { background: rgba(255, 255, 255, 0.025); }

.stg-strike { margin-top: 5rem; padding: 3rem 0 1.4rem; color: var(--stg-muted); border-top: 3px solid var(--stg-signal); background: #06090a; }
.stg-strike__grid { display: grid; grid-template-columns: 1.35fr repeat(3, 1fr); gap: 2rem; }
.stg-strike h2 { margin: 0 0 0.85rem; color: #fff; font: 800 0.92rem/1.15 ui-sans-serif, sans-serif; letter-spacing: -0.01em; }
.stg-strike ul { margin: 0; padding: 0; list-style: none; font-size: 0.85rem; }
.stg-strike li { margin: 0.38rem 0; }
.stg-strike__foot { display: flex; gap: 1rem; justify-content: space-between; margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--stg-rule); font: 650 0.7rem/1.4 ui-monospace, monospace; }
figure { margin: 0; }
figcaption { color: var(--stg-muted); }
code { padding: 0.08rem 0.3rem; border: 1px solid var(--stg-rule); border-radius: 0.3rem; color: var(--stg-mint); background: #080c0e; font-size: 0.88em; }

@media (max-width: 68rem) {
  .stg-board__row { display: block; padding: 0.85rem 0 0.45rem; }
  .stg-cues { justify-content: flex-start; margin-top: 0.7rem; padding-bottom: 0.35rem; overflow-x: auto; scrollbar-width: thin; }
  .stg-hero__grid { grid-template-columns: minmax(0, 1fr) minmax(19rem, 0.78fr); gap: 2rem; }
  .stg-doors, .stg-feed, .stg-archive-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stg-strike__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 48rem) {
  .stg-shell, .stg-trace { width: min(100% - 1.25rem, 42rem); }
  .stg-board__row { min-height: auto; }
  .stg-sign { font-size: 0.92rem; }
  .stg-hero, .stg-hero--home { min-height: 0; padding: 2.4rem 0 1.8rem; }
  .stg-hero__grid, .stg-atlas-intro { grid-template-columns: 1fr; }
  .stg-hero__visual { aspect-ratio: 16 / 10; transform: none; }
  .stg-hero h1, .stg-atlas-intro h1, .stg-article h1 { font-size: clamp(2.45rem, 14vw, 4.1rem); }
  .stg-section__head { display: block; }
  .stg-doors, .stg-feed, .stg-archive-grid, .stg-strike__grid { grid-template-columns: 1fr; }
  .stg-wing--lead { display: grid; grid-template: none; grid-template-rows: auto 1fr; }
  .stg-wing img, .stg-wing--lead img { min-height: 13rem; max-height: 18rem; }
  .stg-feature img { height: clamp(15rem, 68vw, 23rem); }
  .stg-data { grid-template-columns: 1fr; }
  .stg-data dt { padding-bottom: 0.25rem; border-bottom: 0; }
  .stg-data dd { padding-top: 0.25rem; }
  .stg-strike__foot { display: block; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}