/* unfirehose.com — Design System (matches @unturf/unfirehose-ui styleguide) */

/* ========================================================================
   Design Tokens
   ======================================================================== */
:root {
  --color-background: #09090b;
  --color-foreground: #fafafa;
  --color-surface: #18181b;
  --color-surface-hover: #27272a;
  --color-border: #3f3f46;
  --color-muted: #a1a1aa;
  --color-accent: #d40000;
  --color-accent-hover: #b00000;
  --color-accent-glow: rgba(212, 0, 0, 0.15);
  --color-error: #f87171;
  --color-success: #4ade80;

  /* Red tonal scale */
  --color-red-50: #fef2f2;
  --color-red-400: #ff5555;
  --color-red-500: #e81a1a;
  --color-red-600: #d40000;
  --color-red-700: #af0000;
  --color-red-800: #8b0000;
  --color-red-950: #3a0000;

  /* Typography */
  --font-mono: 'Geist Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', 'Courier New', monospace;
  --font-sans: 'Geist', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-base: 1rem;     /* 16px minimum enforced */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */

  /* Spacing (4px base unit) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;

  /* Shape */
  --radius: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;

  /* Elevation */
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/* ========================================================================
   Reset & Base
   ======================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-mono);
  background: var(--color-background);
  color: var(--color-foreground);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  width: 100%;
}

::selection {
  background: color-mix(in srgb, var(--color-accent) 25%, transparent);
  color: var(--color-foreground);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 150ms;
}

a:hover {
  color: var(--color-red-400);
}

h1, h2, h3, h4 {
  color: var(--color-foreground);
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.5em;
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2rem; }
h3 { font-size: var(--font-size-xl); }

p {
  margin-bottom: 1rem;
  color: var(--color-muted);
  font-size: var(--font-size-base);
}

code {
  font-family: var(--font-mono);
  background: var(--color-surface-hover);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: var(--font-size-base);
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--color-background); }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-muted); }

/* ========================================================================
   Layout
   ======================================================================== */
.landing {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

/* ========================================================================
   Header
   ======================================================================== */
.landing-header {
  background: color-mix(in srgb, var(--color-background) 95%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--color-accent);
  padding: 0 var(--space-6);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  height: 64px;
}

.logo {
  display: grid;
  grid-auto-flow: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-foreground);
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
}

.logo-un {
  color: var(--color-foreground);
}

.logo-firehose {
  color: var(--color-accent);
}

.header-nav {
  justify-self: end;
  display: grid;
  grid-auto-flow: column;
  gap: var(--space-6);
  align-items: center;
}

.nav-link {
  color: var(--color-muted);
  font-size: var(--font-size-base);
  transition: color 150ms;
}

.nav-link:hover {
  color: var(--color-foreground);
}

.nav-link-primary {
  background: var(--color-accent);
  color: var(--color-foreground);
  padding: var(--space-2) var(--space-6);
  border-radius: var(--radius);
  font-weight: 700;
}

.nav-link-primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-foreground);
}

/* ========================================================================
   Hero
   ======================================================================== */
.hero {
  padding: 100px var(--space-6) 80px;
  text-align: center;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero h1 {
  font-size: 3.2rem;
  margin-bottom: 0.3em;
  position: relative;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--color-accent), var(--color-red-400), #ff4444);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-muted);
  max-width: 700px;
  margin: 0 auto 2rem;
  position: relative;
}

.hero-actions {
  display: grid;
  grid-auto-flow: column;
  gap: var(--space-4);
  justify-content: center;
  margin-top: 2rem;
}

.hero-note {
  font-size: var(--font-size-base);
  color: var(--color-border);
  margin-top: 1.5rem;
  position: relative;
}

/* ========================================================================
   Buttons
   ======================================================================== */
.btn {
  display: inline-block;
  padding: var(--space-3) var(--space-8);
  border-radius: var(--radius);
  font-size: var(--font-size-base);
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all 150ms;
  font-family: var(--font-sans);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-foreground);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-foreground);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--color-accent-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn-secondary:hover {
  background: color-mix(in srgb, var(--color-accent) 10%, transparent);
  color: var(--color-red-400);
  transform: translateY(-1px);
}

/* ========================================================================
   Sections
   ======================================================================== */
.section {
  padding: 80px var(--space-6);
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  margin-bottom: 0.4em;
}

.section-subtitle {
  text-align: center;
  color: var(--color-muted);
  max-width: 600px;
  margin: 0 auto 3rem;
  font-size: var(--font-size-lg);
}

/* ========================================================================
   Feature Cards
   ======================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: border-color 150ms, transform 150ms;
}

.feature-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: var(--space-4);
  display: block;
}

.feature-card h3 {
  margin-bottom: 0.5em;
}

.feature-card p {
  color: var(--color-muted);
}

/* ========================================================================
   How It Works (Flow Steps)
   ======================================================================== */
.flow-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
  margin-top: 2rem;
}

.flow-step {
  text-align: center;
  position: relative;
}

.step-number {
  display: inline-block;
  width: 48px;
  height: 48px;
  line-height: 48px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-foreground);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-4);
}

.flow-step h3 {
  font-size: var(--font-size-lg);
  margin-bottom: 0.4em;
}

.flow-step p {
  color: var(--color-muted);
}

/* ========================================================================
   Tools Grid
   ======================================================================== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-6);
}

.tool-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-6);
  display: grid;
  gap: var(--space-2);
  transition: border-color 150ms;
}

.tool-card:hover {
  border-color: var(--color-accent);
}

.tool-name {
  font-family: var(--font-mono);
  color: var(--color-accent);
  font-size: var(--font-size-lg);
  font-weight: 700;
}

a.tool-name:hover {
  color: var(--color-red-400);
}

.tool-desc {
  color: var(--color-muted);
  margin: 0;
}

/* ========================================================================
   Code Block
   ======================================================================== */
.code-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-6);
  overflow-x: auto;
  margin: 2rem auto;
  max-width: 700px;
}

.code-block pre {
  font-family: var(--font-mono);
  font-size: var(--font-size-base);
  color: var(--color-foreground);
  line-height: 1.7;
  white-space: pre;
}

.code-block .cmd {
  color: var(--color-accent);
}

.code-block .flag {
  color: var(--color-red-400);
}

.code-block .str {
  color: var(--color-success);
}

.code-block .comment {
  color: var(--color-border);
}

/* ========================================================================
   Scrobble Onboarding
   ======================================================================== */
.scrobble-steps {
  display: grid;
  gap: var(--space-6);
  max-width: 700px;
  margin: 0 auto 2rem;
}

.scrobble-step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--space-6);
  align-items: center;
}

.scrobble-step .step-number {
  justify-self: center;
  margin-bottom: 0;
}

.scrobble-step h3 {
  font-size: var(--font-size-lg);
  margin-bottom: 0.3em;
}

.scrobble-step p {
  color: var(--color-muted);
  margin: 0;
}

/* ========================================================================
   Pricing
   ======================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
  align-items: start;
}

.price-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-6);
  position: relative;
  transition: border-color 150ms;
}

.price-card:hover {
  border-color: var(--color-accent);
}

.price-card.featured {
  border-color: var(--color-accent);
  box-shadow: 0 0 30px var(--color-accent-glow);
}

.price-badge {
  position: absolute;
  top: -12px;
  right: var(--space-6);
  background: var(--color-accent);
  color: var(--color-foreground);
  padding: var(--space-1) var(--space-4);
  border-radius: 20px;
  font-size: var(--font-size-base);
  font-weight: 700;
  text-transform: uppercase;
}

.price-tier {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-foreground);
  margin-bottom: var(--space-1);
}

.price-amount {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-1);
}

.price-amount .period {
  font-size: var(--font-size-base);
  color: var(--color-muted);
  font-weight: 400;
}

.price-annual {
  font-size: var(--font-size-base);
  color: var(--color-success);
  margin-bottom: 1.5rem;
}

.price-desc {
  color: var(--color-muted);
  margin-bottom: 1.5rem;
  min-height: 48px;
}

.price-features {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem;
}

.price-features li {
  padding: var(--space-2) 0;
  color: var(--color-foreground);
  border-bottom: 1px solid var(--color-surface-hover);
}

.price-features li::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  margin-right: var(--space-3);
  vertical-align: middle;
}

.price-cta {
  display: block;
  width: 100%;
  text-align: center;
  padding: var(--space-3);
  border-radius: var(--radius);
  font-weight: 700;
  font-size: var(--font-size-base);
  cursor: pointer;
  border: none;
  transition: all 150ms;
  font-family: var(--font-sans);
}

.price-cta-primary {
  background: var(--color-accent);
  color: var(--color-foreground);
}

.price-cta-primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-foreground);
}

.price-cta-outline {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.price-cta-outline:hover {
  background: color-mix(in srgb, var(--color-accent) 10%, transparent);
}

.price-cta-plans {
  margin-top: var(--space-2);
}

/* ========================================================================
   Data Ownership
   ======================================================================== */
.ownership-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 48px;
  margin: 0 auto;
  max-width: 900px;
  text-align: center;
}

.ownership-section h2 {
  margin-bottom: 1rem;
}

.ownership-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  margin-top: 2rem;
  text-align: left;
}

.ownership-item h3 {
  font-size: var(--font-size-lg);
  margin-bottom: 0.3em;
}

.ownership-item p {
  color: var(--color-muted);
  margin: 0;
}

/* ========================================================================
   Bucket Sync Callout
   ======================================================================== */
.sync-callout {
  background: color-mix(in srgb, var(--color-accent) 4%, var(--color-surface));
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-xl);
  padding: 40px;
  margin: 3rem auto;
  max-width: 900px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-8);
  align-items: center;
}

.sync-callout h3 {
  font-size: var(--font-size-xl);
  margin-bottom: 0.5em;
}

.sync-providers {
  display: grid;
  grid-auto-flow: column;
  gap: var(--space-4);
  margin-top: 1rem;
}

.sync-provider {
  background: var(--color-surface-hover);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-2) var(--space-4);
  color: var(--color-foreground);
  font-weight: 700;
  text-align: center;
}

/* ========================================================================
   Payment Methods
   ======================================================================== */
.payment-methods {
  display: grid;
  grid-auto-flow: column;
  gap: var(--space-6);
  justify-content: center;
  margin-top: 2rem;
}

.payment-method {
  color: var(--color-muted);
  text-align: center;
}

.payment-icon {
  font-size: var(--font-size-2xl);
  display: block;
  margin-bottom: var(--space-1);
}

/* ========================================================================
   CTA Section
   ======================================================================== */
.cta-section {
  text-align: center;
  padding: 80px var(--space-6);
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(circle, color-mix(in srgb, var(--color-accent) 6%, transparent) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section h2 {
  font-size: 2.2rem;
  margin-bottom: 0.5em;
  position: relative;
}

.cta-section p {
  font-size: var(--font-size-lg);
  color: var(--color-muted);
  margin-bottom: 2rem;
  position: relative;
}

/* ========================================================================
   Footer
   ======================================================================== */
.landing-footer {
  background: var(--color-background);
  border-top: 1px solid var(--color-border);
  padding: var(--space-8) var(--space-6);
  text-align: center;
}

.footer-links {
  display: grid;
  grid-auto-flow: column;
  gap: var(--space-4);
  justify-content: center;
  margin-bottom: var(--space-4);
}

.footer-links a {
  color: var(--color-muted);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-powered {
  color: var(--color-border);
  margin: 0;
}

/* ========================================================================
   Billing Toggle & Payment Grid
   ======================================================================== */
.price-billing-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-1);
  background: var(--color-background);
  border-radius: var(--radius-lg);
  padding: var(--space-1);
  margin-bottom: var(--space-3);
}

.toggle-btn {
  background: transparent;
  border: none;
  color: var(--color-muted);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 700;
  transition: all 150ms;
  font-family: var(--font-sans);
}

.toggle-btn--active {
  background: var(--color-accent);
  color: var(--color-foreground);
}

.toggle-btn:hover:not(.toggle-btn--active) {
  color: var(--color-foreground);
}

.price-pay-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.price-pay-grid .price-cta {
  padding: var(--space-2);
}

.payment-note {
  text-align: center;
  color: var(--color-border);
  margin-top: 1rem;
}

/* ========================================================================
   Flash Messages (Phoenix)
   ======================================================================== */
.flash-container {
  position: fixed;
  top: 72px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  width: 100%;
  max-width: 600px;
  padding: 0 var(--space-6);
}

.flash-container .alert {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-2);
}

.flash-container .alert--info {
  border-color: #3b82f6;
  color: #93c5fd;
}

.flash-container .alert--error {
  border-color: var(--color-error);
  color: #fca5a5;
}

/* ========================================================================
   Legal Pages (terms, privacy)
   ======================================================================== */
.uf-legal-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 120px var(--space-6) 80px;
}

.uf-legal-back {
  display: inline-block;
  color: var(--color-muted);
  margin-bottom: var(--space-6);
}

.uf-legal-back:hover {
  color: var(--color-accent);
}

.uf-legal-title {
  font-size: 2rem;
  margin-bottom: var(--space-2);
}

.uf-legal-subtitle {
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}

.uf-legal-updated {
  color: var(--color-border);
  margin-bottom: 40px;
}

.uf-legal-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}

.uf-legal-section {
  margin-bottom: var(--space-8);
}

.uf-legal-section:last-child {
  margin-bottom: 0;
}

.uf-legal-section h2 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
  color: var(--color-foreground);
}

.uf-legal-section h3 {
  font-size: var(--font-size-base);
  margin-top: var(--space-4);
  margin-bottom: var(--space-2);
  color: var(--color-foreground);
}

.uf-legal-section p {
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: var(--space-3);
}

.uf-legal-section ul {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-3);
}

.uf-legal-section li {
  color: var(--color-muted);
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
  margin-bottom: var(--space-1);
}

.uf-legal-section li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

.uf-legal-section table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-3);
}

.uf-legal-section th,
.uf-legal-section td {
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-surface-hover);
  color: var(--color-muted);
}

.uf-legal-section th {
  color: var(--color-foreground);
  font-weight: 700;
}

.uf-legal-footer {
  text-align: center;
  margin-top: 40px;
  color: var(--color-border);
}

.uf-legal-footer a {
  color: var(--color-muted);
}

/* ========================================================================
   Responsive
   ======================================================================== */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

  .hero-actions {
    grid-auto-flow: row;
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
  }

  .features-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .flow-steps {
    grid-template-columns: 1fr 1fr;
  }

  .tools-grid {
    grid-template-columns: 1fr;
  }

  .ownership-grid {
    grid-template-columns: 1fr;
  }

  .sync-callout {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .sync-providers {
    grid-auto-flow: row;
    grid-template-columns: 1fr 1fr;
  }

  .header-nav {
    gap: var(--space-3);
  }

  .payment-methods {
    grid-auto-flow: row;
    grid-template-columns: repeat(3, auto);
  }

  .section {
    padding: 50px var(--space-4);
  }

  .uf-legal-page {
    padding: 100px var(--space-4) 60px;
  }

  .uf-legal-card {
    padding: var(--space-6);
  }

  .uf-legal-title {
    font-size: 1.6rem;
  }
}

@media (max-width: 480px) {
  .header-content {
    grid-template-columns: 1fr;
    height: auto;
    padding: var(--space-3) 0;
    gap: var(--space-2);
  }

  .header-nav {
    justify-self: start;
  }

  .flow-steps {
    grid-template-columns: 1fr;
  }

  .sync-providers {
    grid-template-columns: 1fr;
  }
}