* {
  box-sizing: border-box;
}

:root {
  --bg: #0b1020;
  --bg-soft: #111831;
  --card: rgba(17, 24, 49, 0.82);
  --card-strong: rgba(15, 23, 42, 0.9);
  --line: rgba(148, 163, 184, 0.18);
  --text: #ecf1ff;
  --muted: #b7c1db;
  --orange: #ff8c42;
  --orange-2: #ffb36b;
  --pink: #ff5fa2;
  --lime: #bef264;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 95, 162, 0.22), transparent 26%),
    radial-gradient(circle at 85% 15%, rgba(255, 140, 66, 0.2), transparent 22%),
    linear-gradient(180deg, #09101f 0%, #0e152b 48%, #0b1020 100%);
  min-height: 100vh;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.35), transparent 85%);
  pointer-events: none;
}

.ambient {
  position: fixed;
  border-radius: 999px;
  filter: blur(80px);
  pointer-events: none;
  opacity: 0.4;
}

.ambient-1 {
  width: 280px;
  height: 280px;
  top: 90px;
  left: -80px;
  background: rgba(255, 95, 162, 0.35);
}

.ambient-2 {
  width: 340px;
  height: 340px;
  right: -100px;
  top: 220px;
  background: rgba(255, 140, 66, 0.28);
}

.scroll-header {
  position: fixed;
  top: 10px;
  right: 12px;
  transform: translateY(-18px);
  z-index: 50;
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.scroll-header.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.scroll-header-inner {
  display: block;
}

.scroll-header-cta {
  min-height: 42px;
  padding: 0 14px;
  border-radius: 12px;
  box-shadow: 0 10px 28px rgba(0,0,0,0.28);
}

.shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 72px;
  position: relative;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 32px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.card + .card,
.strip + .card,
.card + .strip {
  margin-top: 18px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  color: var(--orange-2);
  font-weight: 800;
}

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

h1 {
  font-size: clamp(3rem, 7vw, 5.6rem);
  line-height: 0.93;
  margin-bottom: 18px;
  letter-spacing: -0.05em;
}

.hero-pulse-text {
  --pulse: 0;
  color: rgb(
    calc(236 - (96 * var(--pulse))),
    calc(241 - (210 * var(--pulse))),
    calc(255 - (210 * var(--pulse)))
  );
  text-shadow:
    0 0 calc(3px + 12px * var(--pulse)) rgba(255, 72, 72, calc(0.25 + 0.45 * var(--pulse))),
    0 0 calc(12px + 34px * var(--pulse)) rgba(255, 32, 32, calc(0.08 + 0.30 * var(--pulse)));
  transition: color 90ms linear, text-shadow 90ms linear;
}

h2 {
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.02;
  margin-bottom: 0;
  letter-spacing: -0.035em;
}

h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.lede,
.section-copy,
.step p,
.three-up p,
.faq-grid p,
.download-links a,
.mock-body p,
.strip p,
.mini-list li,
.trust-row li {
  color: var(--muted);
  line-height: 1.65;
  font-size: 1.02rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 22px;
  border-radius: 16px;
  text-decoration: none;
  font-weight: 800;
  transition: transform 140ms ease, box-shadow 140ms ease, background 140ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: linear-gradient(135deg, var(--orange), var(--pink));
  color: white;
  box-shadow: 0 18px 44px rgba(255, 95, 162, 0.28);
}

.button.ghost {
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.04);
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.trust-row li {
  padding: 10px 14px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  margin: 0;
}

.mock-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.1), rgba(255,255,255,0.04));
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 24px;
  overflow: hidden;
}

.mock-top {
  display: flex;
  gap: 8px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.mock-top span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
}

.mock-body {
  padding: 24px;
}

.mock-label {
  color: var(--orange-2);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 800;
}

.mock-body h3 {
  font-size: 1.6rem;
  margin-bottom: 10px;
}

.mock-meter {
  height: 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  overflow: hidden;
  margin: 18px 0 18px;
}

.mock-meter-fill {
  width: 18%;
  height: 100%;
  background: linear-gradient(90deg, var(--pink), var(--orange));
}

.mock-actions {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.95rem;
}

.mock-actions .accent {
  color: var(--lime);
  font-weight: 700;
}

.strip {
  padding: 18px 24px;
  text-align: center;
  color: var(--muted);
}

.strip p {
  margin: 0;
}

.section-head {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  margin-bottom: 24px;
  align-items: end;
}

.section-head.compact {
  grid-template-columns: 1fr;
}

.three-up,
.faq-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.three-up article,
.faq-grid article,
.mini-list {
  padding: 20px;
  border-radius: 20px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
}

.modes-showcase {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 16px;
  align-items: stretch;
}

.modes-list {
  display: grid;
  gap: 10px;
}

.mode-item {
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.09);
  background: rgba(255,255,255,0.03);
  color: var(--text);
  cursor: pointer;
  transition: border-color 140ms ease, background 140ms ease, transform 140ms ease;
}

.mode-item:hover,
.mode-item.is-active {
  border-color: rgba(255,179,107,0.55);
  background: rgba(255,179,107,0.12);
  transform: translateY(-1px);
}

.mode-item-name {
  display: block;
  font-weight: 800;
  margin-bottom: 2px;
}

.mode-item-sub {
  color: var(--muted);
  font-size: 0.92rem;
}

.mode-preview {
  padding: 22px;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,0.12);
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
}

.mode-preview-kicker {
  margin-bottom: 10px;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange-2);
  font-weight: 800;
}

.mode-preview h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.mode-preview p {
  color: var(--muted);
}

.mode-preview-sub {
  margin-bottom: 12px;
  font-family: "SF Mono", ui-monospace, Menlo, Monaco, monospace;
  font-size: 0.9rem;
}

.mode-screen-grid {
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.16);
  background: rgba(0,0,0,0.32);
  padding: 12px;
  display: grid;
  gap: 8px;
  font-family: "SF Mono", ui-monospace, Menlo, Monaco, monospace;
  font-size: 0.86rem;
}

.mode-screen-grid strong {
  color: #fff;
}

.mode-screen-lines {
  color: rgba(123, 255, 168, 0.9);
  line-height: 1.35;
}

.mode-screen-counter {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: #fff;
}

.mode-screen-badge {
  display: inline-flex;
  width: fit-content;
  padding: 3px 8px;
  border: 2px solid rgba(255,95,95,0.8);
  color: rgba(255,120,120,0.95);
  font-weight: 800;
}

.mode-screen-foot {
  color: var(--muted);
}

.matrix-screen .mode-screen-counter {
  color: rgba(182, 255, 203, 1);
}

.mission-screen .mode-screen-counter {
  color: rgba(255, 149, 149, 1);
}

.vitals-screen {
  gap: 10px;
}

.ekg-strip {
  height: 54px;
  border-radius: 10px;
  background: rgba(2, 25, 11, 0.75);
  border: 1px solid rgba(89, 255, 149, 0.35);
  overflow: hidden;
  position: relative;
}

.ekg-svg {
  width: 160%;
  height: 100%;
  transform: translateX(0);
  animation: ekgSlide 1.8s linear infinite;
}

.ekg-svg polyline {
  fill: none;
  stroke: #5aff95;
  stroke-width: 2.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 6px rgba(90,255,149,0.65));
}

.vitals-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.vitals-metrics > div {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  padding: 8px;
}

.starship-screen {
  grid-template-columns: 140px 1fr 1fr;
}

.radar-wrap {
  grid-row: span 2;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 1px solid rgba(112, 234, 255, 0.45);
  position: relative;
  background: radial-gradient(circle at center, rgba(46,133,168,0.3), rgba(6,25,48,0.75));
  overflow: hidden;
}

.radar-ring {
  position: absolute;
  border: 1px solid rgba(112, 234, 255, 0.35);
  border-radius: 50%;
}

.r1 { inset: 10px; }
.r2 { inset: 24px; }
.r3 { inset: 38px; }

.radar-sweep {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 48%;
  height: 2px;
  background: linear-gradient(90deg, rgba(120,255,255,0.1), rgba(120,255,255,0.95));
  transform-origin: left center;
  animation: radarSweep 1.8s linear infinite;
}

.starship-screen .mode-screen-foot {
  grid-column: 1 / -1;
}

.containment-bar {
  height: 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.12);
  overflow: hidden;
}

.containment-bar span {
  display: block;
  height: 100%;
  width: 11%;
  background: linear-gradient(90deg, #ff2d2d, #ff8c42);
  box-shadow: 0 0 12px rgba(255,80,50,0.75);
  animation: containmentPulse 0.9s ease-in-out infinite;
}

@keyframes radarSweep {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes containmentPulse {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}

@keyframes ekgSlide {
  0% { transform: translateX(0); }
  100% { transform: translateX(-37.5%); }
}

.mode-vitals {
  background: linear-gradient(180deg, rgba(35,255,149,0.12), rgba(6,34,18,0.75));
}

.mode-matrix {
  background: linear-gradient(180deg, rgba(85,255,160,0.1), rgba(8,40,28,0.7));
}

.mode-mission {
  background: linear-gradient(180deg, rgba(255,95,162,0.18), rgba(49,10,30,0.72));
}

.mode-starship {
  background: linear-gradient(180deg, rgba(115,170,255,0.18), rgba(12,21,48,0.72));
}

.mode-reactor {
  background: linear-gradient(180deg, rgba(255,140,66,0.2), rgba(52,22,8,0.74));
}

.steps {
  display: grid;
  gap: 14px;
}

.step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  align-items: start;
  padding: 18px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.step:first-child {
  border-top: 0;
  padding-top: 0;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(255,140,66,0.22), rgba(255,95,162,0.26));
  color: white;
  font-weight: 900;
}

.emphasis {
  background: linear-gradient(180deg, rgba(255, 95, 162, 0.10), rgba(255, 140, 66, 0.08)), var(--card-strong);
}

.quote-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 16px;
  align-items: stretch;
}

blockquote {
  margin: 0;
  padding: 24px;
  border-radius: 22px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  font-size: 1.35rem;
  line-height: 1.5;
  color: var(--text);
}

.mini-list p {
  color: var(--orange-2);
  font-weight: 800;
  margin-bottom: 10px;
}

.mini-list ul {
  margin: 0;
  padding-left: 18px;
}

.download-box {
  margin-top: 20px;
  padding: 22px;
  border-radius: 22px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
}

.download-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 16px;
}

.download-links a {
  color: #ffd7b8;
  text-decoration: none;
}

@media (max-width: 860px) {
  .hero-grid,
  .section-head,
  .three-up,
  .faq-grid,
  .quote-grid,
  .modes-showcase {
    grid-template-columns: 1fr;
  }

  .shell {
    width: min(100% - 20px, 1120px);
    padding-top: 14px;
  }

  .card {
    padding: 24px;
    border-radius: 22px;
  }

  .starship-screen {
    grid-template-columns: 1fr;
  }

  .radar-wrap {
    width: 100%;
    max-width: 180px;
    height: 180px;
  }

  .vitals-metrics {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: clamp(2.5rem, 11vw, 4rem);
  }
}