/* =============================================================================
   goin teaser — standalone stylesheet.

   This file is NOT part of the Next.js app build. It's served directly by
   Caddy at goin.com / www.goin.com as a static asset. Because of that, the
   rainbow stops and surface colors are a verbatim copy of the canonical
   values in packages/web/src/app/globals.css (and the hex fallbacks in
   packages/web/src/lib/brand.ts). When you tweak a palette stop there, come
   back and mirror it here too — same convention the CSS ↔ brand.ts pair
   already follows.
   ============================================================================= */

:root {
  --rainbow-1: oklch(0.55 0.22 282); /* violet */
  --rainbow-2: oklch(0.58 0.24 312); /* purple */
  --rainbow-3: oklch(0.68 0.25 15);  /* red    */
  --rainbow-4: oklch(0.82 0.19 65);  /* gold   */
  --rainbow-5: oklch(0.74 0.22 155); /* green  */
  --rainbow-6: oklch(0.66 0.22 230); /* azure  */

  --background: oklch(0.08 0 0);
  --foreground: oklch(0.97 0.005 264);
  --surface-2: oklch(0.12 0.01 270);
  --muted-foreground: oklch(0.68 0.02 270);
  --hairline: oklch(1 0 0 / 0.08);
  --hairline-strong: oklch(1 0 0 / 0.14);

  --gloss-highlight: 205, 225, 255;

  --gradient-rainbow: linear-gradient(
    110deg,
    var(--rainbow-1),
    var(--rainbow-2),
    var(--rainbow-3),
    var(--rainbow-4),
    var(--rainbow-5),
    var(--rainbow-6)
  );

  --gradient-gloss-catchlight: radial-gradient(
    ellipse 70% 55% at 30% -10%,
    rgba(var(--gloss-highlight), 0.62) 0%,
    rgba(var(--gloss-highlight), 0.18) 35%,
    rgba(var(--gloss-highlight), 0) 72%
  );
  --gradient-gloss-sheen: linear-gradient(
    180deg,
    rgba(var(--gloss-highlight), 0.5) 0%,
    rgba(var(--gloss-highlight), 0.22) 4%,
    rgba(var(--gloss-highlight), 0.06) 18%,
    rgba(var(--gloss-highlight), 0) 45%,
    rgba(0, 0, 0, 0) 55%,
    rgba(0, 0, 0, 0.22) 85%,
    rgba(0, 0, 0, 0.38) 100%
  );

  --glow-rainbow:
    inset 0 1px 0 0 rgba(var(--gloss-highlight), 0.55),
    inset 0 -1px 0 0 rgba(0, 0, 0, 0.3),
    0 2px 6px -2px rgba(0, 0, 0, 0.5),
    0 18px 40px -12px color-mix(in oklab, var(--rainbow-2) 55%, transparent),
    0 0 60px -20px color-mix(in oklab, var(--rainbow-1) 45%, transparent);
}

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

html {
  color-scheme: dark;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  background-color: var(--background);
  color: var(--foreground);
  font-family:
    "Geist", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "Noto Sans", sans-serif;
  font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  background-image:
    radial-gradient(60rem 40rem at 10% -10%, color-mix(in oklab, var(--rainbow-1) 18%, transparent), transparent 60%),
    radial-gradient(45rem 35rem at 100% 10%, color-mix(in oklab, var(--rainbow-2) 15%, transparent), transparent 65%),
    radial-gradient(50rem 40rem at 50% 120%, color-mix(in oklab, var(--rainbow-5) 8%, transparent), transparent 70%);
  background-attachment: fixed;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.25rem;
}

.card {
  position: relative;
  overflow: hidden;
  width: min(100%, 38rem);
  padding: clamp(1.75rem, 4vw, 3rem);
  border-radius: 1.75rem;
  text-align: center;
}

.card__bloom {
  pointer-events: none;
  position: absolute;
  top: -8rem;
  right: -6rem;
  height: 20rem;
  width: 20rem;
  border-radius: 9999px;
  background-image: var(--gradient-rainbow);
  opacity: 0.25;
  filter: blur(48px);
  background-size: 200% 200%;
  animation: rainbow-drift 12s ease-in-out infinite;
}

/* Frosted surface — same recipe as .glass in globals.css. */
.glass {
  background-color: color-mix(in oklab, var(--surface-2) 78%, transparent);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--hairline);
}

.lockup {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1.25rem;
}

.lockup__mark {
  height: clamp(2.25rem, 6vw, 3rem);
  width: clamp(2.25rem, 6vw, 3rem);
}

.lockup__word {
  font-size: clamp(2.75rem, 8vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
  text-transform: lowercase;
}

.tagline {
  position: relative;
  font-size: clamp(1.1rem, 2.6vw, 1.5rem);
  font-weight: 500;
  margin: 0 0 0.5rem;
  letter-spacing: -0.01em;
}

.sub {
  position: relative;
  max-width: 28rem;
  margin: 0 auto 2rem;
  color: var(--muted-foreground);
  font-size: clamp(0.95rem, 2vw, 1.05rem);
  line-height: 1.55;
}

.primary-row {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

/* Primary rainbow pill button — mirrors the shadcn Button + .bg-rainbow
   + .shadow-glow-rainbow stack from the app. */
.btn-rainbow {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.8rem 1.4rem;
  border-radius: 9999px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #000;
  text-decoration: none;
  background-image:
    var(--gradient-gloss-catchlight),
    var(--gradient-gloss-sheen),
    var(--gradient-rainbow);
  background-size: 100% 100%;
  background-repeat: no-repeat;
  box-shadow: var(--glow-rainbow);
  transition: transform 150ms ease, opacity 150ms ease;
}

.btn-rainbow:hover,
.btn-rainbow:focus-visible {
  opacity: 0.92;
  transform: translateY(-1px);
}

.btn-rainbow:active {
  transform: translateY(0);
}

.btn-rainbow svg {
  height: 1.1rem;
  width: 1.1rem;
  fill: currentColor;
}

.secondary-row {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
}

/* Icon-only circle — mirrors .border-rainbow utility (1px gradient border
   via the background-origin mask trick) on a frosted background. */
.icon-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 9999px;
  color: var(--foreground);
  background-color: color-mix(in oklab, var(--surface-2) 60%, transparent);
  background-clip: padding-box;
  border: 1px solid transparent;
  text-decoration: none;
  transition: transform 150ms ease, background-color 150ms ease;
}

.icon-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--gradient-rainbow);
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}

.icon-btn:hover,
.icon-btn:focus-visible {
  transform: translateY(-1px);
  background-color: color-mix(in oklab, var(--surface-2) 85%, transparent);
}

.icon-btn svg {
  height: 1.15rem;
  width: 1.15rem;
  fill: currentColor;
}

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

.footer {
  padding: 1.5rem 1rem 2rem;
  text-align: center;
  color: var(--muted-foreground);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}

/* Rainbow text + animated chrome sheen — copy of the .text-rainbow
   +.animate-rainbow-drift combo from globals.css. */
.text-rainbow {
  background-image: var(--gradient-rainbow);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.text-rainbow.animate-drift {
  background-image:
    linear-gradient(
      100deg,
      transparent 0%,
      transparent 34%,
      rgba(255, 255, 255, 0.45) 48%,
      rgba(255, 255, 255, 0.85) 50%,
      rgba(255, 255, 255, 0.45) 52%,
      transparent 66%,
      transparent 100%
    ),
    var(--gradient-rainbow);
  background-size: 200% 200%;
  animation: rainbow-drift 12s ease-in-out infinite;
}

@keyframes rainbow-drift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@supports not ((-webkit-background-clip: text) or (background-clip: text)) {
  .text-rainbow {
    background-image: none;
    color: #a46cff; /* RAINBOW_STOPS.purple fallback */
    -webkit-text-fill-color: currentColor;
  }
}

@media (prefers-reduced-motion: reduce) {
  .text-rainbow.animate-drift,
  .card__bloom {
    animation: none;
    background-size: 100% 100%;
  }
}