/* Between Us — shared public static chrome (Journal, Download, static pages)
   Source of truth mirrors src/web/web.css homepage tokens. */

:root {
  --bu-bg: #000000;
  --bu-bg-deep: #0a0118;
  --bu-surface: rgba(255, 255, 255, 0.03);
  --bu-surface-strong: rgba(12, 8, 20, 0.92);
  --bu-border: rgba(255, 255, 255, 0.08);
  --bu-border-accent: rgba(217, 70, 239, 0.28);
  --bu-text: #f4f4f5;
  --bu-text-secondary: #e4e4e7;
  --bu-muted: #a1a1aa;
  --muted: var(--bu-muted);
  --bu-accent-from: #d946ef;
  --bu-accent-mid: #e879f9;
  --bu-accent-to: #f97316;
  --bu-accent-hover-to: #fb923c;
  --bu-accent-glow: rgba(217, 70, 239, 0.5);
  --bu-accent-glow-hover: rgba(217, 70, 239, 0.65);
  --bu-radius-sm: 0.75rem;
  --bu-radius-md: 1rem;
  --bu-radius-lg: 1.25rem;
  --bu-radius-pill: 9999px;
  --bu-space-xs: 0.5rem;
  --bu-space-sm: 0.75rem;
  --bu-space-md: 1rem;
  --bu-space-lg: 1.5rem;
  --bu-space-xl: 2rem;
  --bu-space-2xl: 3rem;
  --bu-space-3xl: 4rem;
  --bu-max: 72rem;
  --bu-prose: 42rem;
  --bu-header-h: 3.5rem;
  --bu-btn-h: 2.75rem;
}

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

html {
  scroll-behavior: smooth;
}

body.bu-static {
  margin: 0;
  min-height: 100dvh;
  font-family: Outfit, system-ui, sans-serif;
  background: linear-gradient(180deg, #000000 0%, var(--bu-bg-deep) 48%, #000000 100%);
  color: var(--bu-text);
  line-height: 1.65;
  overflow-x: hidden;
}

a {
  color: var(--bu-accent-mid);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.bu-static-root {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

.bu-public-atmosphere {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.bu-public-atmosphere-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.22;
}

.bu-public-atmosphere-glow--purple {
  top: -8%;
  left: 18%;
  width: 34rem;
  height: 34rem;
  background: radial-gradient(circle, #d946ef 0%, #a855f7 55%, transparent 72%);
}

.bu-public-atmosphere-glow--violet {
  top: 28%;
  left: 42%;
  width: 28rem;
  height: 28rem;
  background: radial-gradient(circle, #a855f7 0%, #8b5cf6 55%, transparent 72%);
  opacity: 0.16;
}

.bu-public-atmosphere-glow--orange {
  top: 52%;
  right: 6%;
  width: 32rem;
  height: 32rem;
  background: radial-gradient(circle, #f97316 0%, #fb923c 55%, transparent 72%);
  opacity: 0.18;
}

.bu-public-atmosphere-glow--pink {
  bottom: 6%;
  left: 38%;
  width: 30rem;
  height: 30rem;
  background: radial-gradient(circle, #ec4899 0%, #d946ef 55%, transparent 72%);
  opacity: 0.14;
}

.bu-public-atmosphere-radials {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 60% at 50% -8%, rgba(168, 85, 247, 0.28) 0%, transparent 58%),
    radial-gradient(ellipse 55% 45% at 12% 38%, rgba(217, 70, 239, 0.16) 0%, transparent 52%),
    radial-gradient(ellipse 50% 42% at 88% 72%, rgba(249, 115, 22, 0.14) 0%, transparent 50%),
    radial-gradient(ellipse 42% 36% at 72% 88%, rgba(236, 72, 153, 0.12) 0%, transparent 48%);
}

.bu-public-atmosphere-stars {
  position: absolute;
  inset: 0;
  opacity: 0.55;
  background-image:
    radial-gradient(1px 1px at 8% 14%, rgba(255, 255, 255, 0.75), transparent),
    radial-gradient(1px 1px at 18% 72%, rgba(232, 121, 249, 0.8), transparent),
    radial-gradient(1.5px 1.5px at 26% 38%, rgba(255, 255, 255, 0.55), transparent),
    radial-gradient(1px 1px at 34% 8%, rgba(240, 171, 252, 0.65), transparent),
    radial-gradient(1px 1px at 42% 58%, rgba(255, 255, 255, 0.45), transparent),
    radial-gradient(1.5px 1.5px at 51% 22%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1px 1px at 58% 84%, rgba(251, 146, 60, 0.55), transparent),
    radial-gradient(1px 1px at 66% 44%, rgba(255, 255, 255, 0.5), transparent),
    radial-gradient(1px 1px at 74% 16%, rgba(232, 121, 249, 0.65), transparent),
    radial-gradient(1.5px 1.5px at 82% 62%, rgba(255, 255, 255, 0.6), transparent),
    radial-gradient(1px 1px at 90% 32%, rgba(240, 171, 252, 0.55), transparent),
    radial-gradient(1px 1px at 94% 78%, rgba(255, 255, 255, 0.45), transparent);
}

.bu-public-atmosphere-dots {
  position: absolute;
  inset: 0;
  opacity: 0.22;
  background-image: radial-gradient(rgba(255, 255, 255, 0.45) 0.55px, transparent 0.55px);
  background-size: 26px 26px;
}

.bu-public-shell {
  position: relative;
  z-index: 1;
  margin: 0 auto;
  max-width: var(--bu-max);
  width: 100%;
  padding: 0 var(--bu-space-md);
}

.bu-public-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(232, 121, 249, 0.08);
  background: rgba(0, 0, 0, 0.62);
  backdrop-filter: blur(20px);
}

.bu-public-header-inner {
  display: flex;
  height: var(--bu-header-h);
  align-items: center;
  justify-content: space-between;
  gap: var(--bu-space-md);
}

.bu-public-logo-link {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  text-decoration: none !important;
}

.bu-public-logo-img {
  height: 2.25rem;
  width: auto;
  max-width: 11rem;
  object-fit: contain;
  filter: drop-shadow(0 0 20px rgba(217, 70, 239, 0.5));
}

.bu-public-nav-desktop {
  display: none;
  align-items: center;
  gap: 1.25rem;
}

.bu-public-nav-desktop a {
  border: none;
  background: transparent;
  padding: 0;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--bu-muted);
  cursor: pointer;
  text-decoration: none !important;
}

.bu-public-nav-desktop a:hover,
.bu-public-nav-desktop a[aria-current="page"] {
  color: #fff;
}

.bu-public-header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.bu-public-login-btn,
.bu-public-signup-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.25rem;
  padding: 0.4rem 0.9rem;
  border-radius: var(--bu-radius-sm);
  font: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: none !important;
  cursor: pointer;
}

.bu-public-login-btn {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: transparent;
  color: #fff;
}

.bu-public-login-btn:hover {
  background: rgba(255, 255, 255, 0.06);
}

.bu-public-signup-btn {
  border: none;
  background: linear-gradient(135deg, var(--bu-accent-from), var(--bu-accent-to));
  color: #fff !important;
  box-shadow: 0 8px 32px var(--bu-accent-glow);
}

.bu-public-signup-btn:hover {
  background: linear-gradient(135deg, var(--bu-accent-mid), var(--bu-accent-hover-to));
  box-shadow: 0 12px 40px var(--bu-accent-glow-hover);
}

.bu-public-nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--bu-radius-sm);
  background: transparent;
  color: #fff;
  font-size: 1.125rem;
  cursor: pointer;
}

.bu-public-mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem 1rem 1rem;
  border-top: 1px solid var(--bu-border);
  background: rgba(0, 0, 0, 0.85);
}

.bu-public-mobile-menu.is-open {
  display: flex;
}

.bu-public-mobile-menu a,
.bu-public-mobile-menu button {
  display: block;
  width: 100%;
  border: none;
  background: transparent;
  padding: 0.75rem 0.5rem;
  text-align: left;
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--bu-text-secondary);
  text-decoration: none !important;
  cursor: pointer;
}

.bu-public-mobile-menu a:hover,
.bu-public-mobile-menu button:hover {
  color: #fff;
}

.bu-static-main {
  position: relative;
  z-index: 1;
  flex: 1;
  width: 100%;
  max-width: var(--bu-max);
  margin: 0 auto;
  padding: var(--bu-space-xl) var(--bu-space-md) var(--bu-space-3xl);
}

.bu-btn-primary,
.bu-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--bu-btn-h);
  padding: 0.75rem 1.25rem;
  border-radius: var(--bu-radius-sm);
  font: inherit;
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none !important;
  cursor: pointer;
  transition: background 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.bu-btn-primary {
  border: none;
  background: linear-gradient(135deg, var(--bu-accent-from), var(--bu-accent-to));
  color: #fff !important;
  box-shadow: 0 10px 40px var(--bu-accent-glow);
}

.bu-btn-primary:hover {
  background: linear-gradient(135deg, var(--bu-accent-mid), var(--bu-accent-hover-to));
  box-shadow: 0 14px 48px var(--bu-accent-glow-hover);
}

.bu-btn-secondary {
  border: 1px solid rgba(217, 70, 239, 0.35);
  background: rgba(255, 255, 255, 0.04);
  color: #fff !important;
  font-weight: 600;
}

.bu-btn-secondary:hover {
  background: rgba(217, 70, 239, 0.08);
}

.bu-btn-primary:disabled,
.bu-btn-secondary:disabled,
.bu-btn-primary.is-disabled,
.bu-btn-secondary.is-disabled {
  opacity: 0.55;
  cursor: default;
  pointer-events: none;
  box-shadow: none;
}

.bu-store-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.bu-store-badge {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.75rem;
  min-height: 3.25rem;
  border: none;
  border-radius: var(--bu-radius-pill);
  padding: 0.625rem 1.25rem;
  background: linear-gradient(135deg, var(--bu-accent-from), var(--bu-accent-to));
  color: #fff !important;
  text-decoration: none !important;
  box-shadow: 0 8px 32px var(--bu-accent-glow);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

a.bu-store-badge:hover {
  transform: translateY(-1px);
  background: linear-gradient(135deg, var(--bu-accent-mid), var(--bu-accent-hover-to));
  box-shadow: 0 12px 40px var(--bu-accent-glow-hover);
}

.bu-store-badge.is-disabled,
span.bu-store-badge {
  opacity: 0.55;
  cursor: default;
  pointer-events: none;
  box-shadow: none;
}

.bu-store-badge-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.bu-store-badge-label {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.88);
}

.bu-store-badge-name {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
}

.bu-public-footer {
  position: relative;
  z-index: 1;
  margin-top: auto;
  border-top: 1px solid var(--bu-border);
  background: rgba(0, 0, 0, 0.45);
}

.bu-public-footer-inner {
  display: grid;
  gap: var(--bu-space-lg);
  padding: var(--bu-space-xl) 0;
}

.bu-public-footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 22rem;
}

.bu-public-footer-logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none !important;
}

.bu-public-footer-logo-link .bu-public-logo-img {
  height: 2rem;
  max-width: 10rem;
}

.bu-public-footer-tagline {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--bu-muted);
}

.bu-public-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.bu-public-footer-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--bu-muted);
  text-decoration: none !important;
}

.bu-public-footer-nav a:hover {
  color: #fff;
}

.bu-public-footer-copy {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--bu-muted);
}

.bu-section-eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--bu-accent-from);
}

.bu-section-title {
  margin: 0;
  font-family: Syne, system-ui, sans-serif;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
  color: #fff;
}

.bu-section-copy {
  margin: 0.75rem 0 0;
  max-width: 40rem;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--bu-muted);
}

@media (min-width: 860px) {
  .bu-public-nav-desktop {
    display: flex;
  }

  .bu-public-nav-toggle {
    display: none;
  }

  .bu-public-mobile-menu,
  .bu-public-mobile-menu.is-open {
    display: none;
  }

  .bu-public-footer-inner {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
  }
}