:root {
  --bg: #f3f5fb;
  --surface: #ffffff;
  --line: #d7deed;
  --ink: #0f1320;
  --ink-soft: #4f566b;
  --brand: #2c54ff;
  --brand-press: #1f45e4;
  --focus: #1f45e4;
  --radius-md: 12px;
  --radius-lg: 16px;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: transparent;
  color: var(--ink);
  font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
  isolation: isolate;
  min-height: 100vh;
}

body::before {
  background:
    radial-gradient(1080px 620px at 50% 34%, rgba(44, 84, 255, 0.15) 0%, rgba(44, 84, 255, 0) 72%),
    radial-gradient(900px 500px at 15% 12%, rgba(44, 84, 255, 0.06) 0%, rgba(44, 84, 255, 0) 72%),
    linear-gradient(180deg, #f7f9ff 0%, #eff3ff 48%, #f3f5fb 100%);
  content: "";
  inset: 0;
  pointer-events: none;
  position: fixed;
  z-index: -1;
}

.skip-link {
  left: 1rem;
  position: absolute;
  top: -3rem;
  z-index: 100;
  background: #fff;
  border: 2px solid var(--focus);
  border-radius: 8px;
  color: var(--ink);
  font-size: 0.9rem;
  padding: 0.45rem 0.7rem;
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

.page-shell {
  min-height: 100vh;
}

.container {
  margin: 0 auto;
  max-width: 1120px;
  padding: 0 1.25rem;
  width: 100%;
}

.site-header {
  min-height: 64px;
  padding: 0.9rem 0 0;
}

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

.brand {
  align-items: center;
  color: var(--ink);
  display: inline-flex;
  font-family: "Space Grotesk", "Avenir Next", sans-serif;
  font-size: clamp(1.65rem, 2vw, 2.2rem);
  font-weight: 700;
  gap: 0.6rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand-mark {
  background: var(--brand);
  border-radius: 999px;
  display: inline-block;
  height: 0.22rem;
  width: 1.4rem;
}

.header-link {
  color: #546080;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
}

.header-link:hover,
.header-link:focus-visible {
  color: #2b3450;
}

.primary-button,
.waitlist-form button {
  align-items: center;
  background: linear-gradient(180deg, #3f65ff 0%, var(--brand) 100%);
  border: 1px solid #294bde;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(44, 84, 255, 0.22);
  color: #fff;
  display: inline-flex;
  font-size: 0.96rem;
  font-weight: 700;
  justify-content: center;
  min-height: 44px;
  padding: 0.68rem 1.2rem;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.hero {
  display: grid;
  min-height: calc(100svh - 64px);
  place-items: center;
  padding: 1.5rem 0 2rem;
}

.hero-inner {
  align-items: center;
  display: flex;
  flex-direction: column;
  margin: 0 auto;
  max-width: 900px;
  text-align: center;
}

h1 {
  font-family: "Space Grotesk", "Avenir Next", sans-serif;
  font-size: clamp(2.05rem, 5.4vw, 4.15rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  margin: 0;
  max-width: 17ch;
  text-wrap: balance;
}

.hero-subtitle {
  color: var(--ink-soft);
  font-size: clamp(1.02rem, 1.25vw, 1.28rem);
  line-height: 1.44;
  margin: 1.5rem auto 0;
  max-width: 50ch;
  text-wrap: pretty;
}

.waitlist-block {
  background: rgba(255, 255, 255, 0.45);
  border: 1px solid rgba(215, 222, 237, 0.95);
  border-radius: var(--radius-lg);
  margin-top: 1.5rem;
  padding: 0.75rem;
  width: min(100%, 640px);
}

.waitlist-form {
  align-items: center;
  display: grid;
  gap: var(--space-2);
  grid-template-columns: minmax(0, 1fr) auto;
}

.waitlist-form input {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  color: var(--ink);
  font-family: inherit;
  font-size: 1rem;
  min-height: 46px;
  padding: 0.68rem 0.85rem;
}

.waitlist-note {
  color: #6a7287;
  font-size: 0.86rem;
  margin: 0.65rem 0 0;
  text-align: center;
}

.visually-hidden {
  border: 0;
  clip: rect(0 0 0 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.primary-button:hover,
.primary-button:focus-visible,
.waitlist-form button:hover,
.waitlist-form button:focus-visible {
  background: linear-gradient(180deg, #4268ff 0%, var(--brand-press) 100%);
  box-shadow: 0 10px 24px rgba(44, 84, 255, 0.27);
  transform: translateY(-1px);
}

@media (max-width: 840px) {
  .site-header {
    min-height: 60px;
    padding-top: 0.8rem;
  }

  h1 {
    font-size: clamp(1.95rem, 9.5vw, 3.15rem);
    max-width: 15ch;
  }

  .hero-subtitle {
    max-width: 42ch;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 0.95rem;
  }

  .brand {
    font-size: 1.55rem;
  }

  .header-link {
    font-size: 0.9rem;
  }

  .hero {
    min-height: auto;
    padding-top: 1.25rem;
    padding-bottom: 2rem;
  }

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

  .waitlist-form button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}