:root {
  color-scheme: light;
  --background: oklch(0.99 0 0);
  --foreground: oklch(0.18 0.02 260);
  --card: oklch(1 0 0);
  --card-foreground: var(--foreground);
  --muted: oklch(0.96 0.005 260);
  --muted-foreground: oklch(0.48 0.02 260);
  --primary: oklch(0.45 0.18 260);
  --primary-foreground: oklch(0.99 0 0);
  --border: oklch(0.9 0.01 260);
  --input: oklch(0.9 0.01 260);
  --ring: oklch(0.45 0.18 260);
  --neutral-100: #f5f5f5;
  --canvas-background: var(--neutral-100);
  --canvas-dot-color: #d4d4d4;
  --radius: 0.625rem;
  --radius-xl: 0.75rem;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.05);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.08);
  --font-sans: "DM Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --spacing-section: clamp(2rem, 5vw, 4rem);
  --enter-ease: cubic-bezier(0.25, 0.1, 0.25, 1);
  --enter-content-dur: 0.9s;
  --enter-main-delay: 0.06s;
  --enter-image-delay: 0.72s;
  --enter-image-dur: 1s;
}

@keyframes enter-fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  margin: 0;
  padding: 0;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  background-color: var(--background);
  scrollbar-gutter: stable;
}

body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--foreground);
  background-color: var(--background);
  background-image: radial-gradient(
    circle,
    var(--canvas-dot-color) 1px,
    transparent 1px
  );
  background-size: 24px 24px;
  background-attachment: fixed;
}

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

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

.site-header {
  flex-shrink: 0;
  align-self: stretch;
  width: 100%;
  max-width: none;
  box-sizing: border-box;
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 1.5rem;
  background: color-mix(in oklch, var(--background) 92%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.logo {
  display: inline-flex;
  align-items: center;
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--foreground);
}

.main {
  flex-shrink: 0;
  max-width: 42rem;
  margin: 0 auto;
  padding: clamp(2.5rem, 8vw, 5rem) 1.5rem var(--spacing-section);
  text-align: center;
  opacity: 0;
  animation: enter-fade var(--enter-content-dur) var(--enter-ease) both;
  animation-delay: var(--enter-main-delay);
}

.eyebrow {
  margin: 0 0 1rem;
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted-foreground);
}

.headline {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--foreground);
}

.headline-line {
  display: block;
}

.subhead {
  margin: 0 auto 2rem;
  max-width: 32ch;
  font-size: var(--text-lg);
  color: var(--muted-foreground);
  line-height: 1.55;
}

.signup {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.75rem;
  margin: 0 auto 1.5rem;
  max-width: 22rem;
}

@media (min-width: 480px) {
  .signup {
    flex-direction: row;
    align-items: center;
  }
}

.signup input[type="email"] {
  flex: 1;
  min-width: 0;
  padding: 0.75rem 1rem;
  font: inherit;
  font-size: var(--text-sm);
  color: var(--foreground);
  background: var(--card);
  border: 1px solid var(--input);
  border-radius: var(--radius);
  outline: none;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.signup input[type="email"]::placeholder {
  color: var(--muted-foreground);
}

.signup input[type="email"]:focus {
  border-color: var(--ring);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--ring) 25%, transparent);
}

.signup button[type="submit"] {
  padding: 0.75rem 1.25rem;
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--primary-foreground);
  background: var(--foreground);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  transition: transform 0.12s ease, opacity 0.12s ease;
}

.signup button[type="submit"]:hover {
  opacity: 0.92;
}

.signup button[type="submit"]:active {
  transform: scale(0.98);
}

.preview-bottom {
  margin-top: auto;
  margin-bottom: 0;
  flex-shrink: 0;
  padding: 0 1.5rem 0;
  opacity: 0;
  animation: enter-fade var(--enter-image-dur) var(--enter-ease) both;
  animation-delay: var(--enter-image-delay);
}

.preview-bottom__frame {
  position: relative;
  max-width: min(72rem, 100%);
  margin: 0 auto;
  overflow: hidden;
  aspect-ratio: 1382 / 500;
}

.preview-bottom__frame img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

@media (prefers-reduced-motion: reduce) {
  .main,
  .preview-bottom {
    animation: none;
    opacity: 1;
  }
}