:root {
  color-scheme: dark;
  --bg: #050914;
  --bg-soft: #07111f;
  --panel: rgba(12, 24, 42, 0.88);
  --panel-strong: #0d1c31;
  --line: rgba(145, 180, 220, 0.18);
  --text: #eef7ff;
  --muted: #9eb2c9;
  --accent: #5ee7ff;
  --accent-2: #8a7dff;
  --success: #69f0ae;
  --warning: #ffd166;
  --danger: #ff6b7a;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  --radius: 18px;
  --shell: min(1480px, calc(100% - 40px));
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 10% -10%, rgba(94, 231, 255, 0.13), transparent 32%),
    radial-gradient(circle at 95% 8%, rgba(138, 125, 255, 0.14), transparent 34%),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
}
button, input, select { font: inherit; }
a { color: inherit; }
img { max-width: 100%; }
.shell { width: var(--shell); margin-inline: auto; }
.skip-link { position: fixed; left: 12px; top: -100px; z-index: 100; background: white; color: #000; padding: 10px 14px; border-radius: 8px; }
.skip-link:focus { top: 12px; }

.hero { min-height: 670px; overflow: hidden; border-bottom: 1px solid var(--line); background: linear-gradient(180deg, rgba(6, 14, 27, 0.45), rgba(5, 9, 20, 0.94)); }
.nav { height: 82px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand { display: flex; gap: 12px; align-items: center; text-decoration: none; }
.brand-mark { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; font-weight: 900; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #06111d; box-shadow: 0 0 35px rgba(94, 231, 255, 0.25); }
.brand strong, .brand small { display: block; }
.brand small { color: var(--muted); font-size: 0.72rem; letter-spacing: .08em; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: .92rem; }
.nav-links a:hover { color: var(--text); }

.hero-grid { min-height: 588px; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr); align-items: center; gap: 70px; padding-block: 70px; }
.eyebrow { margin: 0 0 14px; color: var(--accent); font-size: .75rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
h1 { margin: 0; max-width: 850px; font-size: clamp(3rem, 7vw, 6.8rem); line-height: .96; letter-spacing: -.055em; }
.lede { max-width: 720px; color: var(--muted); font-size: clamp(1.05rem, 1.6vw, 1.32rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 24px; }
.claim { max-width: 760px; padding: 13px 16px; border: 1px solid var(--line); border-radius: 12px; color: var(--muted); background: rgba(9, 19, 33, .58); font-size: .87rem; }
.claim strong { color: var(--warning); }

.button { border: 1px solid var(--line); border-radius: 11px; padding: 12px 18px; color: var(--text); background: rgba(255,255,255,.04); text-decoration: none; cursor: pointer; transition: transform .18s ease, border-color .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); border-color: rgba(94,231,255,.55); }
.button.primary { background: linear-gradient(135deg, var(--accent), #38bdf8); color: #03101a; border-color: transparent; font-weight: 800; }
.button.secondary { background: rgba(138,125,255,.16); border-color: rgba(138,125,255,.4); }
.button.ghost { background: rgba(255,255,255,.025); }
.button.danger { border-color: rgba(255,107,122,.4); color: #ffc4ca; }
.button.small { padding: 9px 13px; font-size: .85rem; }
.button.full { width: 100%; margin-top: 8px; }
.text-button { border: 0; background: transparent; color: var(--muted); cursor: pointer; }

.status-orbit { position: relative; height: 460px; display: grid; place-items: center; }
.orbit-ring { position: absolute; border: 1px solid rgba(94,231,255,.23); border-radius: 50%; animation: spin 28s linear infinite; }
.ring-one { width: 360px; height: 360px; }
.ring-two { width: 245px; height: 245px; animation-direction: reverse; animation-duration: 20s; border-color: rgba(138,125,255,.32); }
.orbit-ring::after { content: ""; position: absolute; width: 11px; height: 11px; border-radius: 50%; top: 14%; left: 10%; background: var(--accent); box-shadow: 0 0 20px var(--accent); }
.craft { font-size: 5rem; color: var(--accent); filter: drop-shadow(0 0 26px rgba(94,231,255,.65)); }
.hero-status-card { position: absolute; right: 4%; bottom: 10%; min-width: 220px; padding: 18px; border: 1px solid var(--line); border-radius: 14px; background: rgba(8,17,31,.86); box-shadow: var(--shadow); backdrop-filter: blur(16px); }
.hero-status-card span, .hero-status-card strong { display: block; }
.hero-status-card strong { margin: 4px 0; font-size: 1.7rem; }
.status-label { color: var(--muted); font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; }
@keyframes spin { to { transform: rotate(360deg); } }

.telemetry-strip { border-bottom: 1px solid var(--line); background: rgba(8,17,31,.82); backdrop-filter: blur(12px); }
.telemetry-grid { display: grid; grid-template-columns: repeat(5, 1fr); }
.telemetry-grid > div { padding: 18px 20px; border-left: 1px solid var(--line); }
.telemetry-grid > div:last-child { border-right: 1px solid var(--line); }
.telemetry-grid span, .telemetry-grid strong { display: block; }
.telemetry-grid span { color: var(--muted); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; }
.telemetry-grid strong { margin-top: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.section { padding-block: 96px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 30px; }
h2 { margin: 0; font-size: clamp(2rem, 4vw, 4rem); line-height: 1; letter-spacing: -.04em; }
h3, h4 { margin: 0; }
.console-actions { display: flex; gap: 9px; }
.console-layout { display: grid; grid-template-columns: 290px minmax(0, 1fr) 310px; gap: 16px; align-items: start; }
.panel { min-width: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); box-shadow: var(--shadow); backdrop-filter: blur(16px); }
.controls-panel, .log-panel { padding: 19px; position: sticky; top: 15px; }
.spacecraft-panel { padding: 22px; }
.panel-heading, .subheading { display: flex; align-items: center; justify-content: space-between; gap: 15px; }
.panel-heading { margin-bottom: 20px; }
.live-dot { color: var(--success); font-size: .65rem; letter-spacing: .12em; }
.live-dot::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 6px; border-radius: 50%; background: currentColor; box-shadow: 0 0 12px currentColor; }
label { display: block; color: var(--muted); font-size: .78rem; font-weight: 700; }
select, input[type="number"] { width: 100%; margin: 6px 0 14px; padding: 10px 11px; border: 1px solid var(--line); border-radius: 9px; color: var(--text); background: #091528; outline: none; }
select:focus, input:focus { border-color: var(--accent); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.policy-box { margin-top: 14px; padding: 11px; border: 1px solid var(--line); border-radius: 10px; }
.policy-box summary { cursor: pointer; color: var(--text); font-size: .82rem; font-weight: 700; }
.toggle { margin-top: 9px; font-weight: 500; }
.toggle input { accent-color: var(--accent); }
hr { border: 0; border-top: 1px solid var(--line); margin: 22px 0; }

.mode-pill { padding: 6px 10px; border-radius: 999px; font-size: .7rem; font-weight: 900; letter-spacing: .08em; background: rgba(94,231,255,.11); color: var(--accent); border: 1px solid rgba(94,231,255,.26); }
.mode-safe { color: #ff9aa5; background: rgba(255,107,122,.11); border-color: rgba(255,107,122,.3); }
.mode-degraded_sensor, .mode-degraded_payload { color: var(--warning); background: rgba(255,209,102,.1); border-color: rgba(255,209,102,.28); }
.mode-nominal { color: var(--success); background: rgba(105,240,174,.1); border-color: rgba(105,240,174,.25); }
.mode-test, .mode-recovery { color: #c7c0ff; background: rgba(138,125,255,.13); border-color: rgba(138,125,255,.3); }

.state-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.state-card { padding: 16px; border: 1px solid var(--line); border-radius: 13px; background: rgba(255,255,255,.025); min-height: 115px; }
.state-card span, .state-card strong, .state-card small { display: block; }
.state-card span { color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; }
.state-card strong { margin: 8px 0 5px; font-size: 1.18rem; word-break: break-word; }
.state-card small { color: var(--muted); }
.health-section, .chart-card { margin-top: 18px; padding: 17px; border: 1px solid var(--line); border-radius: 14px; background: rgba(5,13,24,.56); }
.subheading span { color: var(--muted); font-size: .75rem; }
.slider-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-top: 16px; }
.slider-grid label { padding: 12px; border: 1px solid var(--line); border-radius: 11px; }
.slider-grid output { display: block; margin: 5px 0 8px; color: var(--text); font-size: 1rem; }
input[type="range"] { width: 100%; accent-color: var(--accent); }
#telemetryChart { width: 100%; height: 260px; margin-top: 13px; border-radius: 10px; background: linear-gradient(180deg, rgba(94,231,255,.025), transparent); }

.event-log { list-style: none; padding: 0; margin: 0; max-height: 690px; overflow: auto; }
.event-log li { padding: 11px 0; border-top: 1px solid var(--line); font-size: .78rem; }
.event-log li:first-child { border-top: 0; }
.event-time { color: var(--muted); font-size: .68rem; }
.event-kind { display: inline-block; margin: 5px 5px 3px 0; padding: 2px 6px; border-radius: 5px; background: rgba(94,231,255,.1); color: var(--accent); font-size: .62rem; font-weight: 800; }
.event-message { display: block; color: #d5e4f3; }
.event-error .event-kind { color: #ff9aa5; background: rgba(255,107,122,.11); }
.event-warning .event-kind { color: var(--warning); background: rgba(255,209,102,.11); }

.architecture-section { background: linear-gradient(180deg, rgba(12,24,42,.38), rgba(5,9,20,.1)); border-block: 1px solid var(--line); }
.architecture-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 50px; align-items: center; }
.architecture-grid p { color: var(--muted); }
.architecture-card { padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.025); box-shadow: var(--shadow); }
.feature-list { padding: 0; list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.feature-list li { padding: 12px; border: 1px solid var(--line); border-radius: 10px; color: var(--muted); }
.feature-list strong { color: var(--accent); font-size: 1.4rem; margin-right: 5px; }
.evidence-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; }
.evidence-card { padding: 18px; border: 1px solid var(--line); border-radius: 13px; background: var(--panel); }
.evidence-card span, .evidence-card strong { display: block; }
.evidence-card span { color: var(--muted); font-size: .73rem; text-transform: uppercase; letter-spacing: .08em; }
.evidence-card strong { margin-top: 8px; font-size: 1.6rem; color: var(--success); }
.evidence-note { margin-top: 18px; padding: 18px; border-left: 3px solid var(--warning); background: rgba(255,209,102,.055); color: var(--muted); }
.evidence-note p { margin: 5px 0 0; }
footer { border-top: 1px solid var(--line); padding: 34px 0; color: var(--muted); }
.footer-grid { display: flex; justify-content: space-between; gap: 30px; }
.footer-grid p { margin: 4px 0 0; }
.footer-grid > div:last-child { display: flex; gap: 18px; align-items: center; }
.noscript { position: fixed; inset: auto 20px 20px; z-index: 90; padding: 14px; border-radius: 10px; background: var(--danger); color: #20050a; font-weight: 800; }

@media (max-width: 1180px) {
  .console-layout { grid-template-columns: 260px minmax(0, 1fr); }
  .log-panel { grid-column: 1 / -1; position: static; }
  .event-log { max-height: 360px; display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }
  .state-grid { grid-template-columns: 1fr 1fr; }
  .slider-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 820px) {
  :root { --shell: min(100% - 24px, 1480px); }
  .nav-links { display: none; }
  .hero-grid { grid-template-columns: 1fr; padding-block: 48px; }
  .status-orbit { height: 330px; }
  .ring-one { width: 280px; height: 280px; }
  .ring-two { width: 190px; height: 190px; }
  .telemetry-grid { grid-template-columns: repeat(2, 1fr); }
  .telemetry-grid > div:last-child { grid-column: 1 / -1; }
  .section { padding-block: 68px; }
  .section-heading { align-items: start; flex-direction: column; }
  .console-layout { grid-template-columns: 1fr; }
  .controls-panel, .log-panel { position: static; }
  .architecture-grid { grid-template-columns: 1fr; }
  .evidence-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  h1 { font-size: 3rem; }
  .hero-actions, .console-actions, .footer-grid, .footer-grid > div:last-child { flex-direction: column; align-items: stretch; }
  .state-grid, .slider-grid, .evidence-grid, .feature-list, .event-log { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .telemetry-grid { grid-template-columns: 1fr; }
  .telemetry-grid > div:last-child { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}