:root {
  --bg: #02030d;
  --bg-soft: #07111f;
  --card: rgba(9, 18, 34, 0.78);
  --card-strong: rgba(13, 24, 47, 0.92);
  --line: rgba(148, 163, 184, 0.18);
  --text: #f8fafc;
  --muted: #a8b3c7;
  --muted-strong: #cbd5e1;
  --cyan: #67e8f9;
  --blue: #60a5fa;
  --violet: #a78bfa;
  --pink: #f472b6;
  --gold: #fbbf24;
  --green: #34d399;
  --danger: #fb7185;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: "Inter", Arial, sans-serif;
  background:
    radial-gradient(circle at 12% 10%, rgba(103, 232, 249, 0.18), transparent 30%),
    radial-gradient(circle at 78% 4%, rgba(167, 139, 250, 0.16), transparent 34%),
    radial-gradient(circle at 50% 72%, rgba(244, 114, 182, 0.09), transparent 36%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.48) 0 1px, transparent 1.6px),
    radial-gradient(circle, rgba(103, 232, 249, 0.25) 0 1px, transparent 1.4px);
  background-size: 120px 120px, 210px 210px;
  background-position: 0 0, 48px 82px;
  opacity: 0.18;
  mask-image: linear-gradient(to bottom, black 0%, transparent 82%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(115deg, transparent 0%, rgba(255, 255, 255, 0.03) 45%, transparent 75%);
}

a {
  color: inherit;
}

strong {
  color: #ffffff;
}

.cosmic-shell {
  position: relative;
  z-index: 1;
}

.site-header {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--text);
  text-decoration: none;
}

.logo {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(103, 232, 249, 0.55);
  border-radius: 15px;
  background: linear-gradient(145deg, rgba(103, 232, 249, 0.22), rgba(167, 139, 250, 0.18));
  color: var(--cyan);
  box-shadow: 0 0 28px rgba(103, 232, 249, 0.22), inset 0 0 22px rgba(255, 255, 255, 0.06);
  font-size: 1.35rem;
}

.brand strong {
  display: block;
  font-size: 1.02rem;
  letter-spacing: -0.02em;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  margin-top: 1px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(2, 6, 23, 0.55);
  backdrop-filter: blur(18px);
}

.site-nav a {
  color: var(--muted-strong);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 700;
  padding: 9px 14px;
  border-radius: 999px;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: white;
  background: rgba(255, 255, 255, 0.1);
}

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 36px 22px 72px;
}

.hero {
  min-height: 680px;
  display: grid;
  align-items: center;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  gap: 40px;
}

.hero-copy {
  max-width: 740px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: currentColor;
  box-shadow: 0 0 18px currentColor;
}

h1,
h2,
h3 {
  line-height: 1.05;
  letter-spacing: -0.055em;
}

h1 {
  max-width: 860px;
  font-size: clamp(3.25rem, 8vw, 7.1rem);
  font-weight: 900;
  margin-bottom: 24px;
}

h2 {
  font-size: clamp(2.2rem, 4.6vw, 4.1rem);
  font-weight: 900;
  margin-bottom: 18px;
}

h3 {
  font-size: 1.32rem;
  font-weight: 850;
  margin-bottom: 10px;
}

p {
  color: var(--muted);
}

.lead {
  color: var(--muted-strong);
  font-size: clamp(1.12rem, 2vw, 1.36rem);
  margin-bottom: 18px;
}

.hero-copy > p:not(.lead) {
  max-width: 670px;
  font-size: 1.03rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 34px 0 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 21px;
  border-radius: 999px;
  font-weight: 850;
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue) 45%, var(--violet));
  color: #020617;
  box-shadow: 0 16px 45px rgba(96, 165, 250, 0.3);
}

.button.secondary {
  border: 1px solid var(--line);
  color: white;
  background: rgba(255, 255, 255, 0.06);
}

.constant-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 620px;
  gap: 12px;
}

.constant-strip div {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.045);
}

.constant-strip dt {
  font-size: 1.4rem;
  font-weight: 900;
  color: white;
}

.constant-strip dd {
  color: var(--muted);
  font-size: 0.88rem;
}

.card,
.mini-card,
.timeline article {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.035));
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.card {
  padding: 28px;
}

.simulator-preview {
  position: relative;
  overflow: hidden;
  min-height: 590px;
  background:
    radial-gradient(circle at 50% 37%, rgba(103, 232, 249, 0.22), transparent 38%),
    linear-gradient(180deg, rgba(14, 25, 50, 0.94), rgba(3, 7, 18, 0.94));
}

.simulator-preview::before {
  content: "";
  position: absolute;
  inset: -35%;
  background: conic-gradient(from 160deg, transparent, rgba(103, 232, 249, 0.15), transparent, rgba(244, 114, 182, 0.16), transparent);
  animation: rotate 18s linear infinite;
  opacity: 0.7;
}

.preview-topline,
.orbit-stage,
.metric-list {
  position: relative;
  z-index: 1;
}

.preview-topline {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted-strong);
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.recording-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--danger);
  box-shadow: 0 0 18px var(--danger);
}

.orbit-stage {
  height: 350px;
  display: grid;
  place-items: center;
}

.sun,
.orbit,
.shockwave {
  position: absolute;
  border-radius: 999px;
}

.sun {
  width: 94px;
  height: 94px;
  background: radial-gradient(circle at 34% 32%, #fff7ad, #fbbf24 45%, #fb7185 72%, rgba(251, 113, 133, 0.2));
  box-shadow: 0 0 55px rgba(251, 191, 36, 0.75), 0 0 115px rgba(251, 113, 133, 0.45);
}

.orbit {
  border: 1px solid rgba(203, 213, 225, 0.22);
  animation: rotate 14s linear infinite;
}

.orbit i {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 20px var(--cyan);
  top: 50%;
  right: -7px;
}

.orbit-one {
  width: 180px;
  height: 180px;
  animation-duration: 8s;
}

.orbit-two {
  width: 265px;
  height: 265px;
  animation-duration: 14s;
}

.orbit-two i {
  background: var(--violet);
  box-shadow: 0 0 20px var(--violet);
}

.orbit-three {
  width: 335px;
  height: 335px;
  animation-duration: 22s;
}

.orbit-three i {
  background: var(--green);
  box-shadow: 0 0 20px var(--green);
}

.shockwave {
  width: 215px;
  height: 215px;
  border: 1px solid rgba(103, 232, 249, 0.26);
  animation: pulse 2.8s ease-out infinite;
}

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

.metric {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 14px;
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 16px;
  background: rgba(2, 6, 23, 0.46);
}

.metric span {
  color: var(--muted);
}

.metric strong {
  font-size: 0.92rem;
  text-align: right;
}

.metric.good strong {
  color: var(--green);
}

.metric.warn strong {
  color: var(--gold);
}

.section {
  padding: 72px 0 0;
}

.section-heading {
  max-width: 860px;
  margin-bottom: 30px;
}

.section-heading.narrow {
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-heading.narrow .eyebrow {
  justify-content: center;
}

.section-heading p,
.page-hero p,
.cta-card p,
.split-section p,
.lab-card p {
  font-size: 1.05rem;
}

.grid {
  display: grid;
  gap: 18px;
}

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

.two-up {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.feature-card {
  position: relative;
  overflow: hidden;
  min-height: 250px;
}

.feature-card::after {
  content: "";
  position: absolute;
  inset: auto 22px 0;
  height: 3px;
  border-radius: 999px 999px 0 0;
  background: var(--cyan);
  box-shadow: 0 0 24px var(--cyan);
}

.feature-card .icon {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  margin-bottom: 22px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 1.35rem;
}

.accent-gold::after {
  background: var(--gold);
  box-shadow: 0 0 24px var(--gold);
}

.accent-violet::after {
  background: var(--violet);
  box-shadow: 0 0 24px var(--violet);
}

.split-section {
  display: grid;
  grid-template-columns: 1fr 0.82fr;
  align-items: center;
  gap: 28px;
}

.checklist {
  list-style: none;
  padding: 0;
}

.dramatic-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.checklist li {
  position: relative;
  padding-left: 30px;
  color: var(--muted-strong);
}

.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--green);
  font-weight: 900;
}

.consequence-card {
  position: relative;
  overflow: hidden;
  border-color: rgba(251, 113, 133, 0.34);
  background: linear-gradient(180deg, rgba(127, 29, 29, 0.24), rgba(15, 23, 42, 0.82));
}

.alert-label {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 8px 12px;
  border: 1px solid rgba(251, 113, 133, 0.35);
  border-radius: 999px;
  color: #fecdd3;
  background: rgba(251, 113, 133, 0.13);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.consequence-card h3 {
  font-size: 2.1rem;
  color: white;
}

.heartbeat {
  height: 72px;
  margin-top: 26px;
  border-radius: 18px;
  background:
    linear-gradient(90deg, transparent 0 8%, var(--danger) 8% 10%, transparent 10% 20%, var(--danger) 20% 22%, transparent 22% 28%, var(--danger) 28% 31%, transparent 31% 42%, var(--danger) 42% 44%, transparent 44% 100%),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.06) 0 1px, transparent 1px 22px),
    rgba(2, 6, 23, 0.54);
  box-shadow: inset 0 0 28px rgba(251, 113, 133, 0.1);
}

.mini-card {
  min-height: 150px;
  padding: 20px;
}

.mini-card strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1rem;
}

.mini-card span {
  display: block;
  color: var(--muted);
  font-size: 0.95rem;
}

.cta-card,
.page-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(32px, 6vw, 58px);
  background:
    radial-gradient(circle at 88% 20%, rgba(103, 232, 249, 0.18), transparent 28%),
    radial-gradient(circle at 12% 80%, rgba(167, 139, 250, 0.2), transparent 32%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.035));
}

.cta-card p,
.page-hero p {
  max-width: 800px;
  margin-bottom: 26px;
}

.page-hero h1 {
  font-size: clamp(2.6rem, 6vw, 5.6rem);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  counter-reset: timeline;
}

.timeline article {
  padding: 22px;
}

.timeline article span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 22px;
  border-radius: 14px;
  background: rgba(103, 232, 249, 0.12);
  color: var(--cyan);
  font-weight: 900;
}

.rich-card h3 {
  letter-spacing: -0.025em;
}

.lab-grid {
  display: grid;
  grid-template-columns: 0.74fr 1.26fr;
  gap: 18px;
  align-items: start;
}

.lab-card {
  min-height: 100%;
}

.compact-grid {
  gap: 14px;
}

.site-footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 34px 22px 46px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer a {
  color: var(--muted-strong);
  text-decoration: none;
}

.site-footer a:hover {
  color: white;
}

.contact-email {
  margin-top: 12px;
  color: var(--cyan);
  font-weight: 850;
}

.help-banner {
  margin-top: 20px;
}

.privacy-title {
  margin-bottom: 8px;
}

.privacy-meta {
  color: var(--muted);
  margin-bottom: 32px;
}

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

@keyframes pulse {
  0% {
    transform: scale(0.65);
    opacity: 0.8;
  }
  100% {
    transform: scale(1.35);
    opacity: 0;
  }
}

@media (max-width: 980px) {
  .hero-grid,
  .split-section,
  .lab-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 50px;
  }

  .three-up,
  .four-up,
  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .simulator-preview {
    min-height: 520px;
  }
}

@media (max-width: 720px) {
  .site-header,
  .site-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav {
    justify-content: center;
    flex-wrap: wrap;
    border-radius: 24px;
  }

  main {
    padding-top: 12px;
  }

  h1 {
    font-size: clamp(2.75rem, 17vw, 4.5rem);
  }

  .constant-strip,
  .two-up,
  .three-up,
  .four-up,
  .timeline {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .simulator-preview {
    min-height: 480px;
    padding: 20px;
  }

  .orbit-stage {
    height: 300px;
    transform: scale(0.82);
  }

  .metric {
    flex-direction: column;
    gap: 2px;
  }

  .metric strong {
    text-align: left;
  }

  .section {
    padding-top: 56px;
  }
}