:root {
  color-scheme: dark;
  --ink-0: #02060b;
  --ink-1: #050b13;
  --ink-2: #091321;
  --panel: rgba(12, 25, 40, 0.78);
  --panel-solid: #0b1726;
  --line: rgba(154, 181, 214, 0.16);
  --line-strong: rgba(154, 181, 214, 0.3);
  --text: #f4f8fd;
  --muted: #91a6bd;
  --green: #3ce6a0;
  --green-rgb: 60, 230, 160;
  --amber: #ffbf47;
  --amber-rgb: 255, 191, 71;
  --red: #ff5066;
  --red-rgb: 255, 80, 102;
  --cyan: #4fc9ff;
  --cyan-rgb: 79, 201, 255;
  --state: var(--green);
  --state-rgb: var(--green-rgb);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.38);
  --wrap: min(1480px, calc(100% - 40px));
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 11% -8%, rgba(23, 110, 173, 0.22), transparent 34rem),
    radial-gradient(circle at 91% 16%, rgba(var(--state-rgb), 0.08), transparent 31rem),
    linear-gradient(145deg, var(--ink-0), var(--ink-2) 52%, #040a12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  transition: background 300ms ease;
}

body[data-state="FIRE_PENDING"] { --state: var(--amber); --state-rgb: var(--amber-rgb); }
body[data-state="FIRE_ACTIVE"] { --state: var(--red); --state-rgb: var(--red-rgb); }
body[data-state="RECOVERY"] { --state: var(--amber); --state-rgb: var(--amber-rgb); }

body[data-state="FIRE_ACTIVE"] {
  background:
    radial-gradient(circle at 50% -14%, rgba(var(--red-rgb), 0.28), transparent 42rem),
    radial-gradient(circle at 10% 60%, rgba(var(--red-rgb), 0.08), transparent 32rem),
    linear-gradient(145deg, #100309, #250712 53%, #09030a);
}

button, input, textarea, select { font: inherit; }
button { color: inherit; }
a { color: inherit; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  border-radius: 10px;
  color: #00140b;
  background: var(--green);
  font-weight: 900;
  transform: translateY(-160%);
  transition: transform 180ms ease;
}
.skip-link:focus { transform: translateY(0); }

.wrap { width: var(--wrap); margin-inline: auto; }

.site-header {
  position: sticky;
  z-index: 30;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  padding: 14px max(20px, calc((100% - 1440px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(3, 9, 16, 0.78);
  backdrop-filter: blur(18px) saturate(130%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  position: relative;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(var(--cyan-rgb), 0.55);
  border-radius: 13px;
  color: var(--cyan);
  background: linear-gradient(145deg, rgba(var(--cyan-rgb), 0.16), rgba(var(--cyan-rgb), 0.04));
  box-shadow: inset 0 0 20px rgba(var(--cyan-rgb), 0.08), 0 0 28px rgba(var(--cyan-rgb), 0.1);
  font-size: 1.1rem;
  font-weight: 950;
}
.brand-mark::after {
  position: absolute;
  inset: 5px;
  border: 1px solid rgba(var(--cyan-rgb), 0.2);
  border-radius: 9px;
  content: "";
}
.brand-mark span { position: relative; z-index: 1; }
.brand strong { display: block; font-size: 0.98rem; letter-spacing: 0.08em; }

.header-badges { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.badge, .scope-chip, .target-chip, .runtime-pill, .simulation-label, .footer-mode {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 30px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #c0cfe0;
  background: rgba(255, 255, 255, 0.025);
  font-size: 0.65rem;
  font-weight: 850;
  letter-spacing: 0.075em;
  text-transform: uppercase;
}
.badge-live { color: var(--green); border-color: rgba(var(--green-rgb), 0.34); background: rgba(var(--green-rgb), 0.08); }
.badge-live i, .runtime-pill i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 12px currentColor;
}
.badge-sim, .simulation-label { color: var(--amber); border-color: rgba(var(--amber-rgb), 0.38); background: rgba(var(--amber-rgb), 0.09); }
.badge-host { color: var(--cyan); border-color: rgba(var(--cyan-rgb), 0.3); }

.intro {
  display: block;
  padding-block: 72px 34px;
}

.section-kicker {
  margin: 0 0 8px;
  color: var(--cyan);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.19em;
  text-transform: uppercase;
}

h1, h2, p { text-wrap: pretty; }
h1 {
  max-width: 1180px;
  margin: 0;
  font-size: clamp(2.35rem, 5.5vw, 5.7rem);
  line-height: 0.94;
  letter-spacing: -0.055em;
}
h1 span {
  display: block;
  margin-top: 13px;
  color: #9fb0c4;
  font-size: clamp(1.05rem, 1.65vw, 1.45rem);
  font-weight: 560;
  line-height: 1.35;
  letter-spacing: -0.018em;
}

.command-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.58fr) minmax(330px, 0.72fr);
  gap: 20px;
}

.status-stage, .control-deck, .metric-card, .flow-section, .telemetry-panel, .timeline-panel,
.study-case, .architecture, .reality-card, .technical, .engineering-notes {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.status-stage {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: flex;
  min-height: 570px;
  padding: 32px;
  flex-direction: column;
  justify-content: space-between;
  border-color: rgba(var(--state-rgb), 0.45);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 76% 45%, rgba(var(--state-rgb), 0.19), transparent 17rem),
    linear-gradient(145deg, rgba(var(--state-rgb), 0.07), rgba(7, 17, 29, 0.92) 58%);
  transition: border-color 250ms ease, background 250ms ease, box-shadow 250ms ease;
}
body[data-state="FIRE_ACTIVE"] .status-stage { box-shadow: 0 0 0 1px rgba(var(--red-rgb), 0.16), 0 30px 110px rgba(124, 6, 27, 0.38); }

.stage-grid {
  position: absolute;
  z-index: -1;
  inset: 0;
  opacity: 0.17;
  background-image:
    linear-gradient(rgba(255,255,255,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.055) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom right, #000, transparent 75%);
}
.stage-topline, .stage-footer { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.state-index { color: var(--state); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.72rem; font-weight: 850; letter-spacing: 0.12em; }
.runtime-pill { color: var(--state); border-color: rgba(var(--state-rgb), 0.35); }

.status-copy { position: relative; z-index: 3; width: min(72%, 720px); }
.status-eyebrow { margin: 0 0 10px; color: var(--state); font-size: clamp(0.7rem, 1vw, 0.85rem); font-weight: 900; letter-spacing: 0.16em; text-transform: uppercase; }
.status-copy h2 { margin: 0; font-size: clamp(4rem, 10vw, 9.4rem); line-height: 0.82; letter-spacing: -0.075em; text-shadow: 0 0 46px rgba(var(--state-rgb), 0.14); }
body[data-state="FIRE_PENDING"] .status-copy h2 { font-size: clamp(2.9rem, 7vw, 6.6rem); line-height: 0.9; }
.status-copy > p:not(.status-eyebrow) { margin: 22px 0 17px; color: #d4e0ed; font-size: clamp(1.1rem, 2vw, 1.75rem); font-weight: 780; letter-spacing: -0.018em; }

.state-orbit { position: absolute; z-index: 1; top: 50%; right: 4%; width: 290px; aspect-ratio: 1; transform: translateY(-50%); }
.orbit-ring, .orbit-core { position: absolute; border-radius: 50%; }
.orbit-ring { inset: 0; border: 1px solid rgba(var(--state-rgb), 0.29); }
.orbit-ring-a::before, .orbit-ring-b::before { position: absolute; width: 11px; height: 11px; border-radius: 50%; background: var(--state); box-shadow: 0 0 24px var(--state); content: ""; }
.orbit-ring-a::before { top: 12%; left: 17%; }
.orbit-ring-b { inset: 38px; border-style: dashed; opacity: 0.7; }
.orbit-ring-b::before { right: 4%; bottom: 27%; }
.orbit-core { inset: 91px; border: 1px solid rgba(var(--state-rgb), 0.46); background: radial-gradient(circle, rgba(var(--state-rgb), 0.32), rgba(var(--state-rgb), 0.03) 68%); box-shadow: 0 0 72px rgba(var(--state-rgb), 0.28); }

.stage-footer { flex-wrap: wrap; padding-top: 19px; border-top: 1px solid var(--line); }
.stage-footer span { display: grid; gap: 1px; color: var(--muted); font-size: 0.66rem; font-weight: 740; letter-spacing: 0.06em; text-transform: uppercase; }
.stage-footer b { color: var(--text); font-size: 0.88rem; letter-spacing: 0.03em; }

.control-deck {
  display: flex;
  padding: 28px;
  flex-direction: column;
  border-radius: var(--radius-xl);
  background: linear-gradient(150deg, rgba(13, 28, 45, 0.94), rgba(6, 13, 23, 0.9));
}
.panel-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
.panel-heading h2 { margin: 0; font-size: clamp(1.35rem, 2.1vw, 2rem); letter-spacing: -0.035em; }
.scope-chip { color: var(--cyan); border-color: rgba(var(--cyan-rgb), 0.3); white-space: nowrap; }
.control-summary { margin: 18px 0 24px; color: var(--muted); }

.button {
  display: flex;
  width: 100%;
  min-height: 62px;
  align-items: center;
  justify-content: center;
  gap: 13px;
  padding: 13px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 15px;
  cursor: pointer;
  background: rgba(255,255,255,0.035);
  font-weight: 830;
  transition: transform 150ms ease, border-color 150ms ease, background 150ms ease, opacity 150ms ease;
}
.button + .button { margin-top: 10px; }
.button:hover:not(:disabled) { transform: translateY(-2px); }
.button:focus-visible { outline: 3px solid rgba(var(--cyan-rgb), 0.5); outline-offset: 3px; }
.button:disabled { cursor: not-allowed; opacity: 0.5; }
.button span:not(.button-icon) { display: grid; flex: 1; gap: 2px; text-align: left; }
.button small { color: rgba(255,255,255,0.65); font-size: 0.7rem; font-weight: 650; }
.button-icon { display: grid; width: 34px; height: 34px; flex: 0 0 auto; place-items: center; border-radius: 10px; background: rgba(255,255,255,0.08); }
.button-alarm { color: #dbf4ff; border-color: rgba(var(--cyan-rgb), 0.4); background: linear-gradient(135deg, rgba(var(--cyan-rgb), 0.16), rgba(var(--cyan-rgb), 0.05)); }
.button-run { margin-top: 10px; color: #120308; border-color: rgba(var(--red-rgb), 0.72); background: linear-gradient(135deg, #ff6b79, var(--red)); box-shadow: 0 15px 36px rgba(var(--red-rgb), 0.18); }
.button-run small { color: rgba(20, 3, 8, 0.7); }
.button-row { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 10px; margin-top: 10px; }
.button-row .button { min-height: 54px; margin: 0; font-size: 0.73rem; letter-spacing: 0.03em; }
.button-reset { border-color: rgba(var(--green-rgb), 0.3); }
.button-present[aria-pressed="true"] { color: #00151e; border-color: var(--cyan); background: var(--cyan); }
.progress-track { overflow: hidden; height: 5px; margin-top: auto; border-radius: 999px; background: rgba(255,255,255,0.07); }
.progress-track span { display: block; width: 0; height: 100%; border-radius: inherit; background: var(--state); transition: width 150ms linear, background 250ms ease; }
.progress-track span[data-phase="FIRE_PENDING"] { width: 12.5%; }
.progress-track span[data-phase="FIRE_ACTIVE"] { width: 75%; }
.progress-track span[data-phase="RECOVERY"] { width: 100%; }
.keyboard-hint { margin: 12px 0 0; color: #73899f; font-size: 0.66rem; }
kbd { padding: 2px 5px; border: 1px solid var(--line-strong); border-radius: 5px; background: rgba(255,255,255,0.05); font: inherit; }

.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 18px; }
.metric-card { position: relative; overflow: hidden; min-height: 210px; padding: 22px; border-radius: var(--radius-lg); }
.metric-card::after { position: absolute; right: -45px; bottom: -65px; width: 150px; height: 150px; border-radius: 50%; background: rgba(var(--accent-rgb), 0.08); content: ""; }
.metric-fire { --accent: var(--red); --accent-rgb: var(--red-rgb); }
.metric-pump, .metric-ews { --accent: var(--cyan); --accent-rgb: var(--cyan-rgb); }
.metric-sensor { --accent: var(--green); --accent-rgb: var(--green-rgb); }
.metric-head { display: flex; align-items: center; gap: 9px; }
.metric-head span { display: grid; width: 27px; height: 27px; place-items: center; border: 1px solid rgba(var(--accent-rgb), 0.35); border-radius: 8px; color: var(--accent); font: 750 0.63rem ui-monospace, monospace; }
.metric-head p { margin: 0; color: var(--muted); font-size: 0.69rem; font-weight: 830; letter-spacing: 0.07em; text-transform: uppercase; }
.metric-card > strong { display: block; margin: 27px 0 7px; color: var(--accent); font-size: clamp(1.5rem, 2.6vw, 2.35rem); line-height: 1; letter-spacing: -0.04em; }
.metric-card > p { margin: 0; color: var(--muted); font-size: 0.78rem; }
.metric-card > p b { color: #d9e5f1; }
.pump-visual { display: flex; gap: 5px; margin-top: 19px; }
.pump-visual i { width: 22px; height: 5px; border-radius: 999px; background: rgba(var(--cyan-rgb), 0.17); }
body[data-state="FIRE_ACTIVE"] .pump-visual i { background: var(--cyan); box-shadow: 0 0 12px rgba(var(--cyan-rgb), 0.5); }

.flow-section, .technical, .architecture, .study-case { margin-top: 18px; padding: 30px; border-radius: var(--radius-xl); }
.flow-rail { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr auto 1fr; gap: 10px; align-items: center; margin-top: 27px; }
.flow-node { min-width: 0; min-height: 146px; padding: 17px; border: 1px solid var(--line); border-radius: 17px; background: rgba(255,255,255,0.025); transition: border-color 200ms ease, background 200ms ease, transform 200ms ease; }
.flow-node > span { color: #60758b; font: 750 0.65rem ui-monospace, monospace; }
.flow-node i { display: block; width: 10px; height: 10px; margin: 20px 0 11px; border-radius: 50%; background: #405367; }
.flow-node strong, .flow-node small { display: block; }
.flow-node strong { font-size: 0.78rem; line-height: 1.25; }
.flow-node small { margin-top: 5px; color: var(--muted); font-size: 0.65rem; }
.flow-node.active { transform: translateY(-4px); border-color: rgba(var(--state-rgb), 0.55); background: rgba(var(--state-rgb), 0.08); }
.flow-node.active i { background: var(--state); box-shadow: 0 0 16px var(--state); }
.flow-link { width: 23px; height: 1px; background: linear-gradient(to right, var(--line-strong), rgba(var(--state-rgb), 0.45)); }
.flow-branches { display: grid; grid-template-columns: 1fr 42px 2fr; align-items: center; gap: 13px; margin-top: 22px; padding: 16px 18px; border: 1px dashed var(--line-strong); border-radius: 15px; color: var(--muted); font-size: 0.64rem; font-weight: 850; letter-spacing: 0.06em; }
.flow-branches > i { height: 1px; background: var(--line-strong); }
.flow-branches > div { display: flex; gap: 8px; }
.flow-branches b { flex: 1; padding: 8px; border-radius: 8px; color: #b8c9d9; background: rgba(255,255,255,0.035); text-align: center; }

.dashboard-split { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 18px; margin-top: 18px; }
.telemetry-panel, .timeline-panel { min-height: 470px; padding: 28px; border-radius: var(--radius-xl); }
.telemetry-list, .technical-grid { display: grid; gap: 0; margin: 24px 0 0; }
.telemetry-list div, .technical-grid div { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.telemetry-list dt, .technical-grid dt { color: var(--muted); font-size: 0.73rem; }
.telemetry-list dd, .technical-grid dd { margin: 0; color: #d9e5f1; font-size: 0.73rem; font-weight: 850; text-align: right; }
.timeline-count { color: var(--muted); font: 720 0.68rem ui-monospace, monospace; }
.timeline { display: grid; max-height: 375px; gap: 8px; overflow: auto; margin: 24px 0 0; padding: 0; list-style: none; scrollbar-width: thin; }
.timeline li { display: grid; grid-template-columns: auto 1fr auto; gap: 11px; align-items: center; padding: 10px 12px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,0.022); }
.event-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--event, var(--cyan)); box-shadow: 0 0 11px var(--event, var(--cyan)); }
.event-dot.tone-green { --event: var(--green); }
.event-dot.tone-amber { --event: var(--amber); }
.event-dot.tone-red { --event: var(--red); }
.event-dot.tone-cyan { --event: var(--cyan); }
.timeline li strong { font-size: 0.72rem; letter-spacing: 0.035em; }
.timeline time { color: var(--muted); font: 0.64rem ui-monospace, monospace; }

.study-case { display: grid; grid-template-columns: auto 0.8fr 1.6fr; gap: 30px; align-items: start; background: linear-gradient(145deg, rgba(var(--amber-rgb), 0.07), var(--panel)); }
.study-label { writing-mode: vertical-rl; padding: 11px 8px; border: 1px solid rgba(var(--amber-rgb), 0.35); border-radius: 10px; color: var(--amber); font-size: 0.6rem; font-weight: 900; letter-spacing: 0.13em; }
.study-copy h2 { margin: 0; font-size: clamp(1.7rem, 3vw, 3.2rem); line-height: 1; letter-spacing: -0.045em; }
.study-copy > p:last-child { color: var(--muted); }
.study-steps { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0; padding: 0; list-style: none; }
.study-steps li { display: flex; gap: 11px; min-height: 84px; padding: 13px; border: 1px solid var(--line); border-radius: 13px; background: rgba(255,255,255,0.025); }
.study-steps span { color: var(--amber); font: 750 0.62rem ui-monospace, monospace; }
.study-steps p { margin: 0; color: #b9c8d7; font-size: 0.74rem; }

.target-chip { max-width: 310px; border-color: rgba(var(--amber-rgb), 0.3); color: var(--amber); text-align: center; }
.architecture-flow { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 10px; margin-top: 27px; padding: 20px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,0.02); }
.architecture-flow span { padding: 9px 12px; border-radius: 9px; background: rgba(var(--cyan-rgb), 0.08); font-size: 0.72rem; font-weight: 800; }
.architecture-flow i { color: var(--cyan); font-style: normal; }
.gpio-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 9px; margin-top: 16px; }
.gpio-grid div { padding: 13px; border: 1px solid var(--line); border-radius: 12px; }
.gpio-grid b, .gpio-grid span { display: block; }
.gpio-grid b { color: var(--cyan); font: 800 0.72rem ui-monospace, monospace; }
.gpio-grid span { margin-top: 5px; color: var(--muted); font-size: 0.64rem; }

.reality-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 18px; }
.reality-card { padding: 27px; border-radius: var(--radius-xl); }
.reality-card > span { color: var(--card-color); font-size: 0.63rem; font-weight: 900; letter-spacing: 0.12em; }
.reality-card h2 { margin: 9px 0 17px; font-size: 1.5rem; }
.reality-card ul { display: grid; gap: 9px; margin: 0; padding: 0; color: var(--muted); font-size: 0.74rem; list-style: none; }
.reality-card li::before { margin-right: 8px; color: var(--card-color); content: "◆"; font-size: 0.55rem; }
.reality-card.real { --card-color: var(--green); }
.reality-card.target { --card-color: var(--cyan); }
.reality-card.simulated { --card-color: var(--amber); }

.technical-grid { grid-template-columns: 1fr 1fr; column-gap: 28px; }
.engineering-notes { margin-top: 18px; padding: 0; border-radius: var(--radius-lg); }
.engineering-notes summary { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 20px 24px; cursor: pointer; font-size: 0.74rem; font-weight: 850; letter-spacing: 0.08em; list-style: none; }
.engineering-notes summary::-webkit-details-marker { display: none; }
.engineering-notes summary::after { color: var(--cyan); content: "+"; font-size: 1.2rem; }
.engineering-notes[open] summary::after { content: "−"; }
.engineering-notes summary small { color: var(--muted); font-weight: 600; letter-spacing: 0; }
.engineering-notes > div { padding: 0 24px 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.78rem; }

.site-footer { display: grid; grid-template-columns: 1fr 1.2fr auto; gap: 26px; align-items: center; padding-block: 42px 52px; color: var(--muted); }
.site-footer strong, .site-footer span { display: block; }
.site-footer strong { color: var(--text); letter-spacing: 0.08em; }
.site-footer p { margin: 0; font-size: 0.72rem; }
.footer-mode { color: var(--cyan); border-color: rgba(var(--cyan-rgb),0.25); text-align: center; }
.noscript { position: fixed; z-index: 100; inset: auto 20px 20px; padding: 14px; border: 1px solid var(--red); border-radius: 12px; background: #2c0710; text-align: center; }

body.presentation .site-header { position: static; }
body.presentation .intro { padding-block: 30px 20px; }
body.presentation .intro h1 { font-size: clamp(2rem, 4vw, 4rem); }
body.presentation .presentation-secondary, body.presentation .site-footer { display: none; }
body.presentation .command-grid { grid-template-columns: minmax(0, 1.7fr) minmax(330px, 0.65fr); }
body.presentation .status-stage { min-height: calc(100vh - 250px); }
body.presentation .metric-grid { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1180px) {
  .command-grid { grid-template-columns: 1fr; }
  .control-deck { min-height: auto; }
  .progress-track { margin-top: 24px; }
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .flow-rail { grid-template-columns: 1fr 1fr 1fr; }
  .flow-link { display: none; }
  .flow-node:nth-of-type(4), .flow-node:nth-of-type(5) { grid-column: span 1; }
  .gpio-grid { grid-template-columns: repeat(3, 1fr); }
  body.presentation .command-grid { grid-template-columns: 1fr; }
  body.presentation .status-stage { min-height: 65vh; }
}

@media (max-width: 860px) {
  :root { --wrap: min(100% - 24px, 1480px); }
  .site-header { position: static; padding: 12px; align-items: flex-start; flex-direction: column; }
  .header-badges { justify-content: flex-start; }
  .intro { padding-block: 43px 24px; }
  .status-stage { min-height: 510px; padding: 24px; }
  .status-copy { width: 85%; }
  .state-orbit { right: -80px; opacity: 0.6; }
  .dashboard-split, .reality-grid { grid-template-columns: 1fr; }
  .study-case { grid-template-columns: auto 1fr; }
  .study-steps { grid-column: 1 / -1; }
  .technical-grid { grid-template-columns: 1fr; }
  .site-footer { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .header-badges .badge { font-size: 0.57rem; }
  h1 { font-size: clamp(2.1rem, 13vw, 3.6rem); }
  .status-stage { min-height: 490px; padding: 19px; border-radius: 23px; }
  .stage-topline { align-items: flex-start; }
  .runtime-pill { max-width: 160px; text-align: center; }
  .status-copy { width: 100%; }
  .status-copy h2 { font-size: clamp(3.25rem, 18vw, 5.2rem); }
  .status-copy > p:not(.status-eyebrow) { font-size: 1rem; }
  .state-orbit { top: 43%; right: -130px; width: 260px; }
  .stage-footer { display: grid; grid-template-columns: 1fr 1fr; }
  .stage-footer span:last-child { grid-column: 1 / -1; }
  .control-deck, .flow-section, .technical, .architecture, .study-case, .telemetry-panel, .timeline-panel, .reality-card { padding: 20px; border-radius: 22px; }
  .panel-heading { flex-direction: column; }
  .scope-chip, .target-chip { white-space: normal; }
  .button-row { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: 1fr; }
  .metric-card { min-height: 176px; }
  .flow-rail { grid-template-columns: 1fr; }
  .flow-node { min-height: 116px; }
  .flow-branches { grid-template-columns: 1fr; }
  .flow-branches > i { width: 1px; height: 20px; justify-self: center; }
  .flow-branches > div { flex-direction: column; }
  .study-case { grid-template-columns: 1fr; }
  .study-label { width: fit-content; writing-mode: initial; }
  .study-steps { grid-template-columns: 1fr; }
  .architecture-flow { justify-content: flex-start; }
  .gpio-grid { grid-template-columns: 1fr 1fr; }
  .telemetry-list div { align-items: flex-start; }
  .timeline li { grid-template-columns: auto 1fr; }
  .timeline time { grid-column: 2; }
  .engineering-notes summary { align-items: flex-start; flex-direction: column; }
}

@media (max-height: 520px) and (orientation: landscape) {
  .site-header { position: static; }
  .intro { padding-block: 28px 18px; }
  .status-stage { min-height: 400px; }
  .command-grid { grid-template-columns: 1.25fr 0.75fr; }
  .control-deck { padding: 18px; }
  .control-summary, .keyboard-hint { display: none; }
  .button { min-height: 52px; }
  .progress-track { margin-top: 12px; }
}

@media (prefers-reduced-motion: no-preference) {
  .orbit-ring-a { animation: orbit 12s linear infinite; }
  .orbit-ring-b { animation: orbit-reverse 9s linear infinite; }
  body[data-state="FIRE_ACTIVE"] .status-stage { animation: emergency-glow 1.4s ease-in-out infinite; }
  body[data-state="FIRE_ACTIVE"] .pump-visual i:nth-child(2) { animation-delay: 120ms; }
  body[data-state="FIRE_ACTIVE"] .pump-visual i:nth-child(3) { animation-delay: 240ms; }
  body[data-state="FIRE_ACTIVE"] .pump-visual i { animation: pump-pulse 700ms ease-in-out infinite alternate; }
  @keyframes orbit { to { transform: rotate(360deg); } }
  @keyframes orbit-reverse { to { transform: rotate(-360deg); } }
  @keyframes emergency-glow { 50% { box-shadow: 0 0 0 3px rgba(var(--red-rgb), 0.13), 0 30px 125px rgba(124, 6, 27, 0.52); } }
  @keyframes pump-pulse { to { opacity: 0.28; transform: translateX(4px); } }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition-duration: 0.01ms !important; }
}