:root {
  color-scheme: dark;
  --bg: #0a0c10;
  --bg-elev: #11151b;
  --bg-card: rgba(255, 255, 255, 0.03);
  --text: #e6ebf2;
  --muted: #a3adba;
  --line: rgba(255, 255, 255, 0.08);
  --accent: #72f3b4;
  --accent-2: #ffb37a;
  --font-sans: "Space Grotesk", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
  --radius: 18px;
  --max-width: 1200px;
  --space-1: clamp(0.5rem, 0.9vw, 0.75rem);
  --space-2: clamp(0.75rem, 1.2vw, 1rem);
  --space-3: clamp(1rem, 1.6vw, 1.4rem);
  --space-4: clamp(1.5rem, 2.3vw, 2rem);
  --space-5: clamp(2rem, 3vw, 2.75rem);
  --space-6: clamp(2.5rem, 4vw, 4rem);
  --space-7: clamp(3.5rem, 6vw, 5.5rem);
  --fs-sm: clamp(0.85rem, 1.2vw, 0.95rem);
  --fs-base: clamp(1rem, 1.4vw, 1.1rem);
  --fs-md: clamp(1.1rem, 1.6vw, 1.25rem);
  --fs-lg: clamp(1.4rem, 2.4vw, 1.8rem);
  --fs-xl: clamp(2.4rem, 5vw, 4rem);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text);
  font-size: var(--fs-base);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(transparent 39px, rgba(255, 255, 255, 0.03) 40px),
    linear-gradient(90deg, transparent 39px, rgba(255, 255, 255, 0.03) 40px),
    radial-gradient(circle at top right, rgba(114, 243, 180, 0.08), transparent 50%),
    radial-gradient(circle at 20% 20%, rgba(255, 179, 122, 0.08), transparent 55%);
  background-size: 40px 40px, 40px 40px, 100% 100%, 100% 100%;
  pointer-events: none;
  z-index: -1;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--accent);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

p {
  max-width: 72ch;
}

ul {
  list-style: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -100px;
  background: var(--accent);
  color: #081018;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-weight: 600;
  z-index: 1000;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: var(--space-2);
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(10, 12, 16, 0.88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
}

.brand-mark {
  font-size: var(--fs-md);
  letter-spacing: 0.04em;
}

.status-chip {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.35rem;
  background: transparent;
  border: 1px solid var(--line);
  color: inherit;
  padding: 0.5rem 0.7rem;
  border-radius: 10px;
  cursor: pointer;
}

.nav-toggle-bar {
  width: 18px;
  height: 2px;
  background: var(--text);
}

.nav-panel {
  position: absolute;
  top: 100%;
  right: 0;
  left: 0;
  background: rgba(10, 12, 16, 0.98);
  padding: var(--space-2) 0 var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  border-bottom: 1px solid var(--line);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
  transition: max-height 0.3s ease, opacity 0.3s ease;
}

.nav-panel a {
  padding: 0.65rem 1.5rem;
  font-weight: 500;
  color: var(--muted);
}

.nav-panel a.is-active {
  color: var(--accent);
}

.nav-panel.is-open {
  max-height: 320px;
  opacity: 1;
  pointer-events: auto;
}

.hero {
  padding: var(--space-7) 0 var(--space-6);
}

.hero-grid {
  display: grid;
  gap: var(--space-5);
}

.hero h1 {
  font-size: var(--fs-xl);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-2);
}

.hero-subheadline {
  font-size: var(--fs-lg);
  font-weight: 500;
  margin-bottom: var(--space-2);
}

.hero-supporting {
  color: var(--muted);
  margin-bottom: var(--space-3);
}

.hero-microcopy {
  margin-top: var(--space-2);
  color: var(--muted);
}

.eyebrow {
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-2);
  font-size: var(--fs-sm);
  margin-bottom: var(--space-2);
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: var(--fs-sm);
  border: 1px solid transparent;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

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

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: #07150f;
}

.btn-secondary {
  background: transparent;
  border-color: var(--accent);
  color: var(--accent);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--space-3);
  box-shadow: var(--shadow);
}

.hero-card .card-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.lead {
  font-size: var(--fs-md);
  margin-bottom: var(--space-2);
}

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

.mono-label {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section {
  padding: var(--space-6) 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 90px;
}

.section-head {
  margin-bottom: var(--space-4);
}

.section-head h2 {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-1);
}

.section-intro {
  color: var(--muted);
}

.waitlist .form {
  margin-top: var(--space-3);
}

.form {
  display: grid;
  gap: var(--space-2);
}

.form-row {
  display: grid;
  gap: var(--space-2);
}

label {
  font-size: var(--fs-sm);
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(10, 12, 16, 0.7);
  color: var(--text);
  font-family: inherit;
}

textarea {
  resize: vertical;
}

.form-status {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  min-height: 1.2rem;
}

.tablist {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.tab {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: var(--fs-sm);
  cursor: pointer;
}

.tab.is-active {
  color: var(--accent);
  border-color: var(--accent);
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
}

.tab-panel h3 {
  font-size: var(--fs-md);
  margin-bottom: var(--space-2);
}

.list {
  display: grid;
  gap: var(--space-2);
}

.list li {
  position: relative;
  padding-left: 1.2rem;
}

.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--accent);
  border-radius: 2px;
}

.closer {
  margin-top: var(--space-3);
  font-weight: 500;
}

.text-grid,
.split-grid {
  display: grid;
  gap: var(--space-4);
}

.card-grid {
  display: grid;
  gap: var(--space-3);
}

.feature-grid {
  display: grid;
  gap: var(--space-3);
}

.two-col {
  display: grid;
  gap: var(--space-2);
}

.callout h3 {
  margin: var(--space-2) 0 var(--space-1);
}

.callout-header {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

.chip-row,
.keycap-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: var(--space-2);
}

.chip {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: var(--fs-sm);
  color: var(--muted);
}

.chip.mono {
  font-family: var(--font-mono);
  color: var(--accent);
}

.keycap {
  font-family: var(--font-mono);
  padding: 0.25rem 0.6rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent-2);
  font-size: var(--fs-sm);
}

.muted-card {
  color: var(--muted);
  border-style: dashed;
}

.back-to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  border: 1px solid var(--line);
  background: rgba(10, 12, 16, 0.9);
  color: var(--text);
  padding: 0.6rem 0.8rem;
  border-radius: 12px;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(-4px);
}

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn,
  .back-to-top {
    transition: none;
  }
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .nav-panel {
    position: static;
    display: flex;
    flex-direction: row;
    gap: var(--space-2);
    background: transparent;
    padding: 0;
    border: none;
    max-height: none;
    opacity: 1;
    overflow: visible;
    pointer-events: auto;
    transition: none;
  }

  .nav-panel a {
    padding: 0.4rem 0.75rem;
    border-radius: 999px;
  }

  .hero-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: center;
  }

  .tabs .tablist {
    display: none;
  }

  .tab-panel {
    display: block;
  }

  .tabs .tab-panels {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
  }

  .text-grid,
  .split-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

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

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

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

@media (min-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 1200px) {
  .container {
    width: min(100% - 4rem, var(--max-width));
  }
}

html {
  scroll-behavior: smooth;
}