:root {
  --bg: #07111f;
  --bg-soft: rgba(10, 23, 39, 0.72);
  --surface: rgba(12, 28, 47, 0.78);
  --surface-strong: #102845;
  --text: #f6f7fb;
  --muted: #a8b6c9;
  --line: rgba(191, 209, 230, 0.14);
  --accent: #a78bfa;
  --accent-strong: #8b5cf6;
  --accent-support: #d5c7fa;
  --warm: #d8c7ff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overscroll-behavior: none;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Instrument Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 18%, rgba(167, 139, 250, 0.2), transparent 0 26%),
    radial-gradient(circle at 82% 14%, rgba(216, 199, 255, 0.14), transparent 0 18%),
    radial-gradient(circle at 70% 72%, rgba(139, 92, 246, 0.12), transparent 0 24%),
    linear-gradient(155deg, #040812 0%, #07101c 34%, #0a1830 62%, #0b1b30 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.08), transparent 0 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 24%);
  opacity: 0.45;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.12;
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.7) 0.5px, transparent 0.8px),
    radial-gradient(rgba(255, 255, 255, 0.45) 0.5px, transparent 0.8px);
  background-position: 0 0, 14px 18px;
  background-size: 24px 24px, 28px 28px;
  mix-blend-mode: soft-light;
}

.site-shell {
  width: min(1160px, calc(100% - 2rem));
  margin: 0 auto;
  padding-bottom: 4rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0.25rem;
  border-radius: 0.1rem;
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
}

.brand,
.nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 0.85rem;
  color: var(--text);
  text-decoration: none;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand img {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.9rem;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.nav {
  gap: 0.9rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  color: var(--muted);
  font-size: 0.95rem;
  text-decoration: none;
  transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--text);
}

.nav-cta {
  padding: 0.7rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
}

.hero,
.split-section,
.contact-card,
.service-card,
.step-card,
.value-card,
.hero-panel {
  animation: rise 700ms ease both;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  padding: 4rem 0 3rem;
  align-items: center;
}

.eyebrow {
  margin: 0 0 1rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--accent);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  line-height: 0.98;
}

h1 {
  font-size: clamp(2.6rem, 5vw, 4rem);
  max-width: 12ch;
}

h2 {
  font-size: clamp(2rem, 3.5vw, 2.25rem);
  max-width: 20ch;
}

h3 {
  font-size: 1.3rem;
  line-height: 1.1;
}

p {
  color: var(--muted);
  line-height: 1.65;
}

.lead {
  font-size: 1.14rem;
  max-width: 62ch;
  margin: 1.4rem 0 0;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 2rem 0 2.2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.2rem;
  padding: 0 1.3rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

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

.button-primary {
  color: #062217;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-support) 100%);
  box-shadow: 0 14px 32px rgba(139, 92, 246, 0.24);
}

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

.hero-metrics {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 0;
  margin: 0;
}

.hero-metrics li,
.service-card,
.step-card,
.value-card,
.hero-panel,
.contact-card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
  box-shadow: var(--shadow);
}

.hero-metrics li {
  padding: 1rem;
  border-radius: 1.25rem;
}

.hero-metrics strong {
  display: block;
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}

.hero-metrics span {
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-card {
  position: relative;
  display: flex;
  align-items: center;
}

.hero-panel {
  position: relative;
  margin: 0;
  width: 100%;
  padding: 1.4rem;
  border-radius: 1.5rem;
}

.hero-panel p {
  margin: 0 0 0.7rem;
  color: var(--text);
  font-weight: 600;
}

.hero-panel ul {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  display: grid;
  gap: 0.55rem;
}

.section {
  padding: 4rem 0 0;
}

.section-heading {
  max-width: 45rem;
  margin-bottom: 1.8rem;
}

.card-grid,
.values-grid,
.steps {
  display: grid;
  gap: 1rem;
}

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

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

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

.service-card,
.step-card,
.value-card {
  padding: 1.5rem;
  border-radius: 1.5rem;
}

.service-card p,
.step-card p,
.value-card p {
  margin-bottom: 0;
}

.step-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 1rem;
  border-radius: 999px;
  background: rgba(167, 139, 250, 0.14);
  color: var(--warm);
  font-weight: 700;
  font-family: "Space Grotesk", sans-serif;
}

.contact-section {
  padding-bottom: 2rem;
}

.contact-card {
  padding: 2rem;
  border-radius: 2rem;
  text-align: center;
  background:
    radial-gradient(circle at top, rgba(167, 139, 250, 0.16), transparent 38%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.04));
}

.contact-card h2 {
  margin: 0 auto;
}

.contact-card p {
  max-width: 42rem;
  margin: 1rem auto 1.8rem;
}

.demo-main {
  padding-bottom: 2rem;
}

.demo-hero {
  padding-top: 3rem;
}

.demo-layout {
  display: grid;
  grid-template-columns: minmax(18rem, 0.9fr) minmax(20rem, 1.1fr);
  gap: 1.25rem;
  align-items: start;
}

.demo-card {
  border: 1px solid var(--line);
  border-radius: 1.75rem;
  padding: 1.5rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
  box-shadow: var(--shadow);
}

.demo-output,
.inbox-list {
  display: grid;
  gap: 1rem;
}

.demo-results-head {
  margin-bottom: 1rem;
}

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

.scenario-card {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1.2rem;
  padding: 1rem;
  text-align: left;
  color: inherit;
  background: rgba(7, 16, 28, 0.7);
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.scenario-card:hover,
.scenario-card:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(167, 139, 250, 0.38);
}

.scenario-card.is-active {
  border-color: rgba(167, 139, 250, 0.52);
  background: linear-gradient(180deg, rgba(167, 139, 250, 0.14), rgba(255, 255, 255, 0.03));
}

.scenario-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.scenario-meta strong,
.scenario-meta em {
  font-style: normal;
}

.scenario-meta strong {
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
}

.scenario-meta em {
  font-size: 0.83rem;
  color: var(--accent-support);
}

.scenario-preview {
  display: block;
  color: var(--muted);
  line-height: 1.55;
}

.demo-output article {
  padding: 1rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.demo-output article:first-child {
  border-top: 0;
  padding-top: 0;
}

.demo-output h3 {
  margin-bottom: 0.55rem;
}

.demo-output p {
  margin: 0;
}

.response-draft {
  padding: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  color: var(--text);
  background: rgba(7, 16, 28, 0.72);
  line-height: 1.7;
}

.demo-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  display: grid;
  gap: 0.55rem;
}

.demo-footer-note {
  margin-top: 1.2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.demo-footer-note p {
  margin: 0;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 960px) {
  .hero,
  .card-grid,
  .values-grid,
  .steps,
  .demo-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 2.5rem;
  }

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

@media (max-width: 720px) {
  .topbar {
    position: static;
    padding-top: 1rem;
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
  }

  .site-shell {
    width: min(100% - 1.25rem, 1160px);
  }

  h1 {
    max-width: none;
  }

  .hero-panel {
    margin-inline: 0;
  }
}