:root {
  --bg: #0B1020;
  --bg-2: #0F1728;
  --surface: #101828;
  --surface-2: #141E2E;
  --border: #1D2D44;
  --text: #F3F5F8;
  --text-muted: #A9B4C8;
  --text-subtle: #7F8BA3;
  --accent: #1F8FE5;
  --accent-hover: #2C82C9;
  --accent-soft: rgba(31, 143, 229, 0.12);
  --success: #4ADE80;
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", ui-sans-serif, system-ui, sans-serif;
  background:
    radial-gradient(circle at top center, rgba(31, 143, 229, 0.10), transparent 30%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  color: var(--text);
}

a { color: inherit; }

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(11, 16, 32, 0.72);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
}

.wordmark {
  font-weight: 800;
  letter-spacing: -0.075em;
  line-height: 1;
  font-size: 2rem;
}

.wordmark.small {
  font-size: 1.25rem;
}

.wordmark .dot {
  color: var(--accent);
  margin-left: 0.015em;
}

.header-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.925rem;
}

.header-link:hover {
  color: var(--text);
}

.hero {
  padding: 80px 0 56px;
}

.hero-grid,
.beta-grid,
.audience-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: 1.1fr 0.9fr;
}

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-subtle);
  margin-bottom: 12px;
}

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

h1 {
  font-size: clamp(2.6rem, 6vw, 4.75rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
  max-width: 11ch;
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 14px;
}

h3 {
  font-size: 1rem;
  line-height: 1.2;
  margin-bottom: 10px;
}

.hero-text,
.feature-card p,
.audience-card p,
.beta-copy p,
.site-footer p,
.list {
  color: var(--text-muted);
  line-height: 1.65;
  font-size: 1rem;
}

.hero-text {
  max-width: 56ch;
  margin-top: 18px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.helper {
  margin-top: 14px;
  color: var(--text-subtle);
  font-size: 0.9rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 10px;
  font-size: 0.925rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover {
  background: #18253a;
}

.hero-card,
.audience-card,
.beta-form,
.feature-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 20px;
}

.card-window {
  background: rgba(10, 15, 27, 0.92);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 14px;
  overflow: hidden;
}

.card-bar {
  display: flex;
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.card-bar span {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.18);
}

.terminal {
  padding: 16px 18px 18px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.93rem;
  line-height: 1.65;
}

.terminal-title {
  color: var(--text);
  margin-bottom: 12px;
}

.terminal-line {
  color: var(--text-muted);
}

.prompt {
  color: var(--accent);
  display: inline-block;
  min-width: 1.6rem;
}

.ok {
  color: var(--success);
}

.value {
  color: var(--text);
}

.terminal-divider {
  height: 1px;
  background: rgba(255,255,255,0.08);
  margin: 12px 0;
}

.feature-section,
.audience-section,
.beta-section {
  padding: 42px 0;
}

.section-heading {
  margin-bottom: 24px;
}

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

.feature-card {
  padding: 20px;
}

.audience-card,
.beta-form {
  padding: 22px;
}

.list {
  padding-left: 18px;
  margin: 16px 0 0;
}

.list li + li {
  margin-top: 8px;
}

.beta-form {
  display: grid;
  gap: 14px;
}

.beta-form label {
  display: grid;
  gap: 8px;
}

.beta-form span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

.beta-form label.full {
  grid-column: 1 / -1;
}

.beta-form input,
.beta-form textarea {
  width: 100%;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.025);
  color: var(--text);
  border-radius: 10px;
  padding: 12px 14px;
  font: inherit;
}

.beta-form input::placeholder,
.beta-form textarea::placeholder {
  color: var(--text-subtle);
}

.beta-form input:focus,
.beta-form textarea:focus {
  outline: none;
  border-color: rgba(31,143,229,0.55);
  box-shadow: 0 0 0 3px rgba(31,143,229,0.12);
}

.beta-form button {
  grid-column: 1 / -1;
  justify-self: start;
}

.site-footer {
  border-top: 1px solid rgba(255,255,255,0.05);
  margin-top: 28px;
}

.site-footer p {
  font-size: 0.925rem;
}

.notice {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.notice-card {
  width: min(560px, 100%);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 28px;
  text-align: center;
}

.notice-card h1 {
  max-width: none;
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 12px;
}

.notice-card p {
  color: var(--text-muted);
  line-height: 1.65;
}

.notice-link {
  display: inline-block;
  margin-top: 18px;
  color: var(--text-muted);
  text-decoration: none;
}

.notice-link:hover {
  color: var(--text);
}

@media (max-width: 900px) {
  .hero-grid,
  .beta-grid,
  .audience-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 56px;
  }

  h1 {
    max-width: none;
  }

  .header-inner,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .beta-form {
    grid-template-columns: 1fr;
  }

  .beta-form label.full,
  .beta-form button {
    grid-column: auto;
  }

  .beta-form button {
    justify-self: stretch;
  }
}