/* Brand showcase styles — namespaced under .brand-kit to avoid collision
   with the main site's styles.css when both are ever loaded together. */
.brand-kit {
  --brand-bg-base: #050505;
  --brand-bg-surface: #0a0a0a;
  --brand-bg-elevated: #111111;
  --brand-bg-paper: #f5f5f5;
  --brand-text-primary: #f5f5f5;
  --brand-text-secondary: #a3a3a3;
  --brand-text-muted: #737373;
  --brand-text-ink: #050505;
  --brand-border-color: #262626;
  --brand-border-light: #e5e5e5;
  --brand-accent: #00f0ff;
  --brand-accent-dim: rgba(0, 240, 255, 0.15);
  --brand-accent-glow: rgba(0, 240, 255, 0.35);
  --brand-font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --brand-ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --brand-duration-fast: 150ms;
  --brand-duration-base: 200ms;
  --brand-duration-slow: 320ms;
}

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

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .brand-kit *,
  .brand-kit *::before,
  .brand-kit *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.brand-kit {
  margin: 0;
  font-family: var(--brand-font-sans);
  background: var(--brand-bg-base);
  color: var(--brand-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.brand-kit img,
.brand-kit svg {
  display: block;
  max-width: 100%;
}

.brand-kit a {
  color: var(--brand-accent);
  text-decoration: none;
}

.brand-kit a:hover {
  color: var(--brand-text-primary);
}

/* Hero */
.brand-hero {
  border-bottom: 1px solid var(--brand-border-color);
  padding-block: clamp(5rem, 12vh, 9rem);
}

.brand-hero-inner {
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

.brand-hero-copy {
  max-width: 540px;
}

.brand-kit .eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--brand-accent);
  margin-bottom: 1.25rem;
}

.brand-hero-title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.brand-hero-lead {
  font-size: 1.0625rem;
  color: var(--brand-text-secondary);
  line-height: 1.7;
}

.brand-hero-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  background: linear-gradient(135deg, var(--brand-bg-elevated), var(--brand-bg-surface));
  border: 1px solid var(--brand-border-color);
  border-radius: 1.25rem;
  position: relative;
  overflow: hidden;
}

.brand-hero-logo::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 20%, var(--brand-accent-dim), transparent 60%);
  pointer-events: none;
}

.brand-hero-logo svg {
  width: min(360px, 80%);
  height: auto;
  position: relative;
  z-index: 1;
}

/* Sections */
.brand-section {
  border-bottom: 1px solid var(--brand-border-color);
  padding-block: clamp(4rem, 10vh, 6rem);
}

.brand-container {
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
}

.brand-kit .section-heading {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--brand-accent);
  margin-bottom: 0.75rem;
}

.brand-kit .section-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.brand-kit .section-lead {
  font-size: 1rem;
  color: var(--brand-text-secondary);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

/* Logo tiles */
.brand-kit .logo-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 720px) {
  .brand-kit .logo-grid-2 { grid-template-columns: 1fr 1fr; }
  .brand-kit .logo-grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.brand-kit .logo-tile {
  position: relative;
  display: grid;
  place-items: center;
  padding: 3rem 2rem;
  border-radius: 1rem;
  border: 1px solid var(--brand-border-color);
  overflow: hidden;
  min-height: 220px;
}

.brand-kit .logo-tile--dark {
  background: var(--brand-bg-base);
}

.brand-kit .logo-tile--light {
  background: var(--brand-bg-paper);
  color: var(--brand-text-ink);
  border-color: var(--brand-border-light);
}

.brand-kit .logo-tile svg {
  max-width: 60%;
  height: auto;
}

.brand-kit .logo-tile--mark svg {
  width: clamp(64px, 12vw, 120px);
  height: auto;
}

.brand-kit .logo-tile-label {
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brand-text-muted);
}

.brand-kit .logo-tile--light .logo-tile-label {
  color: #525252;
}

/* Construction grid */
.brand-kit .construction {
  position: relative;
  padding: 3rem 2rem;
}

.brand-kit .construction-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 720px) {
  .brand-kit .construction-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.brand-kit .construction-stage {
  position: relative;
  display: grid;
  place-items: center;
  padding: 2rem;
  background: var(--brand-bg-elevated);
  border: 1px solid var(--brand-border-color);
  border-radius: 1rem;
  min-height: 320px;
}

.brand-kit .construction-mark {
  position: relative;
  width: 240px;
  height: 240px;
}

.brand-kit .construction-mark svg {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
}

.brand-kit .construction-mark::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(0, 240, 255, 0.18) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 240, 255, 0.18) 1px, transparent 1px);
  background-size: 30px 30px;
  z-index: 1;
  border-radius: 0.5rem;
  opacity: 0;
  transition: opacity var(--brand-duration-base) var(--brand-ease-out);
}

.brand-kit .construction-mark.is-grid::before {
  opacity: 1;
}

.brand-kit .construction-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  background: transparent;
  border: 1px solid var(--brand-border-color);
  color: var(--brand-text-primary);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: border-color var(--brand-duration-fast) var(--brand-ease-out), color var(--brand-duration-fast) var(--brand-ease-out), transform 160ms var(--brand-ease-out);
}

.brand-kit .construction-toggle:hover {
  border-color: var(--brand-accent);
  color: var(--brand-accent);
}

.brand-kit .construction-toggle:active {
  transform: scale(0.97);
}

.brand-kit .construction-toggle[aria-pressed="true"] {
  background: var(--brand-accent);
  color: var(--brand-bg-base);
  border-color: var(--brand-accent);
}

.brand-kit .construction-notes {
  display: grid;
  gap: 1rem;
}

.brand-kit .note {
  border-left: 2px solid var(--brand-accent);
  padding: 0.75rem 1rem;
  color: var(--brand-text-secondary);
}

.brand-kit .note strong {
  display: block;
  color: var(--brand-text-primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.75rem;
  margin-bottom: 0.25rem;
}

/* Color tokens */
.brand-kit .swatch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.brand-kit .swatch {
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid var(--brand-border-color);
  background: var(--brand-bg-elevated);
}

.brand-kit .swatch-chip {
  height: 140px;
  display: grid;
  place-items: end start;
  padding: 1rem;
  font-family: 'Inter', monospace;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.brand-kit .swatch-meta {
  padding: 1rem;
}

.brand-kit .swatch-name {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
}

.brand-kit .swatch-token {
  font-family: 'Inter Tight', monospace;
  font-size: 0.9375rem;
  font-weight: 600;
}

/* Don'ts / Dos */
.brand-kit .rule-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 720px) {
  .brand-kit .rule-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.brand-kit .rule {
  padding: 1.5rem;
  border-radius: 1rem;
  border: 1px solid var(--brand-border-color);
  background: var(--brand-bg-elevated);
  display: grid;
  gap: 1rem;
}

.brand-kit .rule--do {
  border-color: var(--brand-accent);
  background: rgba(0, 240, 255, 0.04);
}

.brand-kit .rule-tag {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.brand-kit .rule--do .rule-tag {
  color: var(--brand-accent);
}

.brand-kit .rule--dont .rule-tag {
  color: #f87171;
}

.brand-kit .rule-demo {
  min-height: 110px;
  display: grid;
  place-items: center;
  background: var(--brand-bg-base);
  border-radius: 0.5rem;
  padding: 1rem;
  overflow: hidden;
}

.brand-kit .rule--light .rule-demo {
  background: var(--brand-bg-paper);
}

.brand-kit .rule-demo svg {
  max-width: 70%;
}

.brand-kit .rule-text {
  font-size: 0.9375rem;
  color: var(--brand-text-secondary);
  line-height: 1.6;
}

/* Mockups */
.brand-kit .mockups {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 720px) {
  .brand-kit .mockups {
    grid-template-columns: repeat(3, 1fr);
  }
}

.brand-kit .mockup {
  padding: 1.5rem;
  border-radius: 1rem;
  border: 1px solid var(--brand-border-color);
  background: var(--brand-bg-elevated);
}

.brand-kit .mockup-title {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brand-accent);
  margin-bottom: 0.75rem;
}

/* Favicon mockup */
.brand-kit .mockup-favicon {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand-kit .mockup-favicon-tile {
  width: 96px;
  height: 96px;
  display: grid;
  place-items: center;
  background: var(--brand-bg-paper);
  border-radius: 0.75rem;
  flex-shrink: 0;
}

.brand-kit .mockup-favicon-tile svg {
  width: 64px;
  height: 64px;
  color: var(--brand-text-ink);
}

.brand-kit .mockup-specs {
  font-size: 0.875rem;
  color: var(--brand-text-secondary);
}

.brand-kit .mockup-specs strong {
  color: var(--brand-text-primary);
  font-weight: 700;
}

/* Card mockup */
.brand-kit .mockup-card {
  border-radius: 0.75rem;
  background: linear-gradient(135deg, var(--brand-bg-elevated) 0%, var(--brand-bg-surface) 100%);
  padding: 1.5rem;
  display: grid;
  gap: 0.875rem;
  position: relative;
  overflow: hidden;
}

.brand-kit .mockup-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, var(--brand-accent-dim), transparent 60%);
  pointer-events: none;
}

.brand-kit .mockup-card svg {
  width: 100%;
  height: auto;
  max-width: 180px;
  position: relative;
  z-index: 1;
}

.brand-kit .mockup-card-line {
  height: 8px;
  background: var(--brand-border-color);
  border-radius: 4px;
  position: relative;
  z-index: 1;
}

.brand-kit .mockup-card-line.short {
  width: 60%;
}

/* Social mockup */
.brand-kit .mockup-avatar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--brand-bg-base);
  border-radius: 0.75rem;
}

.brand-kit .mockup-avatar-tile {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--brand-bg-paper);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.brand-kit .mockup-avatar-tile svg {
  width: 44px;
  height: 44px;
  color: var(--brand-text-ink);
}

/* Usage code */
.brand-kit .code-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 720px) {
  .brand-kit .code-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.brand-kit .code-card {
  background: var(--brand-bg-elevated);
  border: 1px solid var(--brand-border-color);
  border-radius: 1rem;
  overflow: hidden;
}

.brand-kit .code-card-header {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--brand-border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-kit .code-card-name {
  font-size: 0.8125rem;
  font-weight: 600;
}

.brand-kit .code-card-tag {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--brand-accent);
  background: var(--brand-accent-dim);
  padding: 0.125rem 0.5rem;
  border-radius: 999px;
}

.brand-kit .code-card pre {
  margin: 0;
  padding: 1rem;
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--brand-text-secondary);
  overflow-x: auto;
  white-space: pre;
}

/* Footer */
.brand-kit .brand-footer {
  padding-block: 3rem;
  border-top: 1px solid var(--brand-border-color);
}

.brand-kit .brand-footer-inner {
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.brand-kit .brand-footer-text {
  font-size: 0.875rem;
  color: var(--brand-text-muted);
}

.brand-kit .brand-footer-link {
  font-size: 0.875rem;
  color: var(--brand-accent);
  font-weight: 500;
}

/* Focus states */
.brand-kit :focus-visible {
  outline: 2px solid var(--brand-accent);
  outline-offset: 2px;
}

/* Floating home link (top-right) */
.brand-kit .brand-home-link {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 9999;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 0.9rem;
  background: var(--brand-bg-elevated);
  border: 1px solid var(--brand-border-color);
  border-radius: 999px;
  color: var(--brand-text-primary);
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  transition: border-color var(--brand-duration-fast) var(--brand-ease-out), color var(--brand-duration-fast) var(--brand-ease-out), transform 160ms var(--brand-ease-out);
}

.brand-kit .brand-home-link:hover {
  border-color: var(--brand-accent);
  color: var(--brand-accent);
  transform: translateY(-1px);
}

@media (max-width: 640px) {
  .brand-kit .brand-home-link {
    top: 0.75rem;
    right: 0.75rem;
    padding: 0.45rem 0.75rem;
    font-size: 0.75rem;
  }
}

/* Skip link */
.brand-kit .brand-skip {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 10000;
  padding: 0.5rem 1rem;
  background: var(--brand-accent);
  color: var(--brand-bg-base);
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  transition: top var(--brand-duration-fast) var(--brand-ease-out);
}

.brand-kit .brand-skip:focus {
  top: 1rem;
  color: var(--brand-bg-base);
}

/* Animations */
.brand-kit .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 480ms var(--brand-ease-out), transform 480ms var(--brand-ease-out);
  will-change: opacity, transform;
}

.brand-kit .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .brand-kit .reveal {
    opacity: 1;
    transform: none;
  }
}