/* ==========================================================================
   PgCache Marketing Site - Main Stylesheet
   Mobile-first, responsive design with CSS custom properties
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   Edit these to quickly customize the look and feel
   -------------------------------------------------------------------------- */
:root {
  /* Colors: see DESIGN.md. Every value here is a decision; do not add a hex
     elsewhere in the stylesheets without adding a token first. */
  --color-brand: #00569f;
  --color-brand-deep: #00437f;
  --color-brand-tint: #e0f1ff;
  --color-brand-tint-hover: #c6e6ff;
  --color-brand-on-dark: #61a3e6;

  --color-hot: #00a3b4;
  --color-hot-deep: #007583;
  --color-hot-tint: #dcf8fb;
  --color-hot-on-dark: #3bcddc;

  --color-cold: #5d70a1;
  --color-cold-deep: #414a94;
  --color-cold-tint: #edf0f9;
  --color-cold-on-dark: #8ca3de;

  --color-ink: #161d29;
  --color-ink-muted: #58616f;
  --color-ink-light: #88909c;
  --color-ink-on-dark: #e4e8ef;
  --color-muted-on-dark: #9da5b1;

  --color-surface: #ffffff;
  --color-surface-alt: #f7fbfd;
  --color-surface-dark: #121b29;
  --color-backdrop: rgba(255, 255, 255, 0.95);

  --color-border: #dadee5;
  --color-border-strong: #bfc4ce;
  --color-border-on-dark: #2f3848;

  /* Status: fills, text steps, washes. Reserved for state; never a series color. */
  --color-good: #05893e;
  --color-good-deep: #00682a;
  --color-good-tint: #e4f8e7;
  --color-warn: #d89700;
  --color-warn-deep: #865900;
  --color-warn-tint: #fff1da;
  --color-error: #c92f33;
  --color-error-deep: #a51e24;
  --color-error-tint: #ffece9;

  /* Categorical: the Fit Analyzer outcomes, fixed order. Dark steps for the dark surface. */
  --cat-cacheable: #00a3b4;
  --cat-forwarded: #414a94;
  --cat-writes: #00a36d;
  --cat-commands: #025884;
  --cat-cacheable-on-dark: #00a6b7;
  --cat-forwarded-on-dark: #535ec6;
  --cat-writes-on-dark: #00a670;
  --cat-commands-on-dark: #006da3;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 860px;

  /* Borders */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* --------------------------------------------------------------------------
   Reset and Base Styles
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-ink);
  background-color: var(--color-surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

a {
  color: var(--color-brand);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-brand-deep);
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.container-narrow {
  max-width: var(--container-narrow);
}

@media (min-width: 640px) {
  .container {
    padding: 0 var(--space-6);
  }
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-ink);
}

h1 {
  font-size: var(--font-size-3xl);
}

h2 {
  font-size: var(--font-size-2xl);
}

h3 {
  font-size: var(--font-size-xl);
}

@media (min-width: 768px) {
  h1 {
    font-size: var(--font-size-5xl);
  }

  h2 {
    font-size: var(--font-size-3xl);
  }

  h3 {
    font-size: var(--font-size-2xl);
  }
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: 500;
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transition: left 0.4s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn:focus {
  outline: 2px solid var(--color-brand);
  outline-offset: 2px;
}

.btn-primary {
  color: var(--color-ink-on-dark);
  background-color: var(--color-brand);
  border-color: var(--color-brand);
}

.btn-primary:hover {
  color: var(--color-ink-on-dark);
  background-color: var(--color-brand-deep);
  border-color: var(--color-brand-deep);
}

.btn-secondary {
  color: var(--color-ink);
  background-color: transparent;
  border-color: var(--color-border-strong);
}

.btn-secondary:hover {
  color: var(--color-ink);
  background-color: var(--color-surface-alt);
  border-color: var(--color-ink-muted);
}

.btn-large {
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
}

@media (min-width: 768px) {
  .btn {
    padding: var(--space-3) var(--space-5);
    font-size: var(--font-size-base);
  }

  .btn-large {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-lg);
  }
}

/* --------------------------------------------------------------------------
   Header / Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-backdrop);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo img {
  height: 28px;
  width: auto;
}

.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle-icon {
  position: relative;
  width: 20px;
  height: 2px;
  background-color: var(--color-ink);
  transition: background-color var(--transition-fast);
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background-color: var(--color-ink);
  transition: transform var(--transition-fast);
}

.nav-toggle-icon::before {
  top: -6px;
}

.nav-toggle-icon::after {
  top: 6px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background-color: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  transform: translateY(-6px) rotate(-45deg);
}

.nav-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  padding: var(--space-4);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.nav-menu.is-open {
  display: block;
}

.nav-links {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-4) 0;
}

.nav-links li {
  margin-bottom: var(--space-2);
}

.nav-links a {
  display: block;
  padding: var(--space-2) 0;
  color: var(--color-ink);
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--color-brand);
}

.nav-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* Resources dropdown. Under 768px it renders as an always-open group inside
   the slide-down menu; from 768px it is a click-to-open panel. */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  width: 100%;
  padding: var(--space-2) 0;
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
  font-weight: 500;
  color: var(--color-ink);
  pointer-events: none;
}

.nav-dropdown-chevron {
  display: none;
  transition: transform var(--transition-fast);
}

.nav-dropdown-menu {
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--space-4);
}

.nav-dropdown-menu li {
  margin-bottom: var(--space-2);
}

/* The bar needs ~900px for five items and two buttons on one row, so the
   hamburger stays until 960px; between 960 and 1100 the gaps tighten. */
@media (min-width: 960px) {
  .nav-toggle {
    display: none;
  }

  .nav-menu {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    gap: var(--space-8);
    position: static;
    padding: 0;
    background: none;
    border: none;
  }

  .nav-menu a,
  .nav-dropdown-toggle {
    white-space: nowrap;
  }

  .nav-links {
    display: flex;
    gap: var(--space-6);
    margin: 0;
  }

  .nav-links li {
    margin: 0;
  }

  .nav-links a {
    padding: var(--space-2);
  }

  .nav-actions {
    flex-direction: row;
    gap: var(--space-3);
  }
}

@media (min-width: 960px) and (max-width: 1099px) {
  .nav-menu {
    gap: var(--space-5);
  }

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

  .nav-actions .btn {
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
  }
}

@media (min-width: 960px) {
  .nav-dropdown-toggle {
    width: auto;
    padding: var(--space-2) 0;
    pointer-events: auto;
    transition: color var(--transition-fast);
  }

  .nav-dropdown-toggle:hover,
  .nav-dropdown-toggle[aria-expanded="true"] {
    color: var(--color-brand);
  }

  .nav-dropdown-toggle:focus-visible {
    outline: 2px solid var(--color-brand);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
  }

  .nav-dropdown-chevron {
    display: block;
  }

  .nav-dropdown-toggle[aria-expanded="true"] .nav-dropdown-chevron {
    transform: rotate(180deg);
  }

  .nav-dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + var(--space-2));
    left: 50%;
    transform: translateX(-50%);
    min-width: 180px;
    padding: var(--space-2);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    z-index: 20;
  }

  .nav-dropdown-toggle[aria-expanded="true"] + .nav-dropdown-menu {
    display: block;
  }

  .nav-dropdown-menu li {
    margin: 0;
  }

  .nav-dropdown-menu a {
    display: block;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
  }

  .nav-dropdown-menu a:hover {
    background-color: var(--color-surface-alt);
  }
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  padding: var(--space-16) 0 var(--space-20);
  background: linear-gradient(to bottom, var(--color-surface-alt), var(--color-surface));
}

.hero .container {
  display: grid;
  gap: var(--space-10);
}

.hero-content {
  text-align: center;
}

.hero-kicker {
  display: inline-block;
  margin-bottom: var(--space-4);
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-brand);
  background-color: var(--color-brand-tint);
  border-radius: var(--radius-sm);
}

.hero-title {
  margin-bottom: var(--space-4);
  font-size: var(--font-size-3xl);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  margin-bottom: var(--space-8);
  font-size: var(--font-size-lg);
  color: var(--color-ink-muted);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.hero-proof {
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.hero-visual {
  display: block;
  min-width: 0;
}

@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (min-width: 768px) {
  .hero {
    padding: var(--space-24) 0;
  }

  .hero-title {
    font-size: var(--font-size-5xl);
  }

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

@media (min-width: 1024px) {
  .hero .container {
    /* minmax(0, 1fr) not 1fr: a long line in the code block or three buttons
       in a row must not widen one column and squeeze the other. */
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }

  .hero-content {
    text-align: left;
  }

  .hero-actions {
    justify-content: flex-start;
  }

  .hero-visual {
    display: block;
  }
}

/* --------------------------------------------------------------------------
   Code Blocks
   -------------------------------------------------------------------------- */
.code-block {
  background-color: var(--color-surface-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.code-header {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background-color: rgba(255, 255, 255, 0.05);
}

.code-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.2);
}

.code-dot:nth-child(1) {
  background-color: #ff5f57;
}

.code-dot:nth-child(2) {
  background-color: #ffbd2e;
}

.code-dot:nth-child(3) {
  background-color: #28ca42;
}

.code-block pre {
  margin: 0;
  padding: var(--space-4);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-color: rgba(255, 255, 255, 0.35) transparent;
  scrollbar-width: thin;
}

.code-block pre::-webkit-scrollbar {
  height: 8px;
}

.code-block pre::-webkit-scrollbar-track {
  background-color: transparent;
}

.code-block pre::-webkit-scrollbar-thumb {
  background-color: rgba(255, 255, 255, 0.35);
  border-radius: 4px;
}

.code-block pre::-webkit-scrollbar-thumb:hover {
  background-color: rgba(255, 255, 255, 0.55);
}

.code-block code {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--color-ink-on-dark);
  line-height: var(--line-height-relaxed);
}

.code-block-small pre {
  padding: var(--space-3);
}

.code-block-small code {
  font-size: var(--font-size-xs);
}

/* Tabbed code block (reader-driven; nothing auto-rotates) */
.code-tabbed {
  min-width: 0;
}

/* Tabs stay on one row so switching never changes the header height.
   On a narrow phone the row scrolls sideways instead of wrapping. */
.code-tablist {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-2) 0;
  background-color: rgba(255, 255, 255, 0.05);
}

.code-tablist::-webkit-scrollbar {
  display: none;
}

.code-tab {
  flex: none;
  appearance: none;
  border: 0;
  cursor: pointer;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  background-color: transparent;
  color: rgba(255, 255, 255, 0.55);
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.code-tab:hover {
  color: rgba(255, 255, 255, 0.85);
}

.code-tab[aria-selected="true"] {
  background-color: var(--color-surface-dark);
  color: var(--color-ink-on-dark);
}

.code-tab:focus-visible {
  outline: 2px solid var(--color-brand-on-dark);
  outline-offset: -2px;
}

.code-panels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

/* Stack every panel in one cell so the block keeps the tallest panel's height */
.code-panel {
  grid-area: 1 / 1;
  min-width: 0;
}

/* Slightly tighter than the default code size so the longest line in any
   tab clears the column at the 1024px breakpoint without scrolling. */
.code-tabbed code {
  font-size: 0.8125rem;
}

.code-panel[hidden] {
  display: block;
  visibility: hidden;
  pointer-events: none;
}

/* Inline code in prose */
:not(pre) > code {
  padding: 0.2em 0.4em;
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: var(--color-surface-alt);
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   Section Headers
   -------------------------------------------------------------------------- */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-12);
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  color: var(--color-ink-muted);
  font-size: var(--font-size-lg);
}

/* --------------------------------------------------------------------------
   Problems Section
   -------------------------------------------------------------------------- */
.problems {
  padding: var(--space-16) 0;
  background-color: var(--color-surface-alt);
}

.problems-grid {
  display: grid;
  gap: var(--space-6);
}

.problem-card {
  padding: var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.problem-card h3 {
  margin-bottom: var(--space-3);
  font-size: var(--font-size-lg);
}

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

@media (min-width: 640px) {
  .problems-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .problems {
    padding: var(--space-24) 0;
  }
}

/* --------------------------------------------------------------------------
   Features Section
   -------------------------------------------------------------------------- */
.features {
  padding: var(--space-16) 0;
}

.features-grid {
  display: grid;
  gap: var(--space-6);
}

.feature-card {
  padding: var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.feature-card:hover {
  border-color: var(--color-brand);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-4);
  background-color: var(--color-surface-alt);
  border-radius: var(--radius-md);
  color: var(--color-brand);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  margin-bottom: var(--space-2);
  font-size: var(--font-size-lg);
}

.feature-card p {
  color: var(--color-ink-muted);
  font-size: var(--font-size-sm);
}

@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .features {
    padding: var(--space-24) 0;
  }
}

@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --------------------------------------------------------------------------
   How It Works Section
   -------------------------------------------------------------------------- */
.how-it-works {
  padding: var(--space-16) 0;
  background-color: var(--color-surface-alt);
}

.steps {
  display: grid;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.step {
  display: flex;
  gap: var(--space-4);
}

.step-number {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-brand);
  background-color: var(--color-surface);
  border: 2px solid var(--color-brand);
  border-radius: 50%;
}

.step-content h3 {
  margin-bottom: var(--space-2);
}

.step-content p {
  margin-bottom: var(--space-4);
  color: var(--color-ink-muted);
}

.step-content .code-block {
  margin-top: var(--space-4);
}

.architecture {
  text-align: center;
}

.architecture-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}

.arch-node {
  padding: var(--space-3) var(--space-5);
  font-weight: 500;
  border-radius: var(--radius-md);
}

.arch-app {
  background-color: var(--color-brand-tint);
  color: var(--color-brand);
}

.arch-pgcache {
  background-color: var(--color-brand);
  color: var(--color-ink-on-dark);
}

.arch-pg {
  background-color: var(--color-border-strong);
  color: var(--color-ink);
}

.arch-arrow {
  font-size: var(--font-size-xl);
  color: var(--color-ink-muted);
}

.architecture-caption {
  color: var(--color-ink-muted);
  font-size: var(--font-size-sm);
}

@media (min-width: 768px) {
  .how-it-works {
    padding: var(--space-24) 0;
  }
}

/* --------------------------------------------------------------------------
   Use Cases Section
   -------------------------------------------------------------------------- */
.use-cases {
  padding: var(--space-16) 0;
}

.use-cases-grid {
  display: grid;
  gap: var(--space-6);
}

.use-case-card {
  padding: var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.use-case-persona {
  display: inline-block;
  margin-bottom: var(--space-3);
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-brand);
  background-color: var(--color-brand-tint);
  border-radius: var(--radius-sm);
}

.use-case-card h3 {
  margin-bottom: var(--space-2);
}

.use-case-card p {
  color: var(--color-ink-muted);
}

@media (min-width: 640px) {
  .use-cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .use-cases {
    padding: var(--space-24) 0;
  }
}

/* --------------------------------------------------------------------------
   CTA Section
   -------------------------------------------------------------------------- */
.cta {
  padding: var(--space-16) 0;
  background-color: var(--color-surface-dark);
  color: var(--color-ink-on-dark);
}

.cta-content {
  text-align: center;
  max-width: 540px;
  margin: 0 auto;
}

.cta h2 {
  margin-bottom: var(--space-4);
  color: var(--color-ink-on-dark);
}

.cta p {
  margin-bottom: var(--space-8);
  color: var(--color-ink-light);
}

.cta-form .form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.cta-form input[type="email"] {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  color: var(--color-ink);
  background-color: var(--color-surface);
  border: none;
  border-radius: var(--radius-md);
}

.cta-form input[type="email"]::placeholder {
  color: var(--color-ink-muted);
}

.cta-form input[type="email"]:focus {
  outline: 2px solid var(--color-brand);
  outline-offset: 2px;
}

.cta-form .form-note {
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.cta-form .form-message {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
}

.cta-form .form-message-success {
  color: var(--color-good);
  background-color: var(--color-good-tint);
}

.cta-form .form-message-error {
  color: var(--color-error);
  background-color: var(--color-error-tint);
}

.cta-form .form-message-info {
  color: var(--color-ink-on-dark);
  background-color: rgba(255, 255, 255, 0.1);
}

.cta-form button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.cta-pilot {
  margin-top: var(--space-8);
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.cta-pilot a {
  color: var(--color-brand-on-dark);
  text-decoration: underline;
}

.cta-pilot a:hover {
  color: var(--color-ink-on-dark);
}

@media (min-width: 640px) {
  .cta-form .form-group {
    flex-direction: row;
  }
}

@media (min-width: 768px) {
  .cta {
    padding: var(--space-24) 0;
  }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  padding: var(--space-12) 0 var(--space-8);
  background-color: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: grid;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-logo img {
  height: 24px;
  width: auto;
}

.footer-tagline {
  margin-top: var(--space-3);
  color: var(--color-ink-muted);
  font-size: var(--font-size-sm);
}

.footer-links {
  display: grid;
  gap: var(--space-8);
  grid-template-columns: repeat(2, 1fr);
}

.footer-section h4 {
  margin-bottom: var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-section li {
  margin-bottom: var(--space-2);
}

.footer-section a {
  color: var(--color-ink);
  font-size: var(--font-size-sm);
}

.footer-section a:hover {
  color: var(--color-brand);
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-bottom p {
  color: var(--color-ink-muted);
  font-size: var(--font-size-sm);
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: 2fr 3fr;
  }

  .footer-links {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --------------------------------------------------------------------------
   Blog Styles
   -------------------------------------------------------------------------- */
.blog-header {
  padding: var(--space-16) 0 var(--space-8);
  background-color: var(--color-surface-alt);
  text-align: center;
}

.blog-header h1 {
  margin-bottom: var(--space-4);
}

.blog-header p {
  color: var(--color-ink-muted);
  font-size: var(--font-size-lg);
}

.blog-list {
  padding: var(--space-8) 0 var(--space-16);
}

.posts {
  display: grid;
  gap: var(--space-8);
}

.post-card {
  position: relative;
  padding: var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
}

.post-card:hover {
  border-color: var(--color-brand);
  box-shadow: var(--shadow-md);
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.post-meta time {
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag {
  position: relative;
  z-index: 1;
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-brand);
  background-color: var(--color-brand-tint);
  border-radius: var(--radius-sm);
}

.tag:hover {
  background-color: var(--color-brand-tint-hover);
}

.post-card h2 {
  margin-bottom: var(--space-3);
  font-size: var(--font-size-xl);
}

.post-card h2 a {
  color: var(--color-ink);
}

.post-card h2 a:hover {
  color: var(--color-brand);
}

.post-card-link::after {
  content: "";
  position: absolute;
  inset: 0;
}

.post-excerpt {
  margin-bottom: var(--space-4);
  color: var(--color-ink-muted);
}

.read-more {
  font-weight: 500;
  color: var(--color-brand);
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.pagination-info {
  color: var(--color-ink-muted);
  font-size: var(--font-size-sm);
}

.no-posts {
  text-align: center;
  color: var(--color-ink-muted);
  padding: var(--space-12) 0;
}

/* Single blog post */
.blog-post {
  padding-bottom: var(--space-16);
}

.post-header {
  padding: var(--space-16) 0 var(--space-8);
  background-color: var(--color-surface-alt);
}

.post-header .post-meta {
  margin-bottom: var(--space-4);
}

.post-author,
.reading-time {
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.post-author::before,
.reading-time::before {
  content: '\2022';
  margin-right: var(--space-3);
}

.post-header h1 {
  margin-bottom: var(--space-4);
}

.post-description {
  font-size: var(--font-size-lg);
  color: var(--color-ink-muted);
  margin-bottom: var(--space-4);
}

.post-header .post-tags {
  margin-top: var(--space-4);
}

/* Post content prose */
.post-content {
  padding: var(--space-8) 0;
}

.post-content h2 {
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
}

.post-content h3 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.post-content p {
  margin-bottom: var(--space-6);
  line-height: var(--line-height-relaxed);
}

.post-content ul,
.post-content ol {
  margin-bottom: var(--space-6);
  padding-left: var(--space-6);
}

.post-content li {
  margin-bottom: var(--space-2);
  line-height: var(--line-height-relaxed);
}

.post-content blockquote {
  margin: var(--space-6) 0;
  padding: var(--space-4) var(--space-6);
  border-left: 4px solid var(--color-brand);
  background-color: var(--color-surface-alt);
  font-style: italic;
}

.post-content pre {
  margin: var(--space-6) 0;
  padding: var(--space-4);
  background-color: var(--color-surface-dark);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

.post-content pre code {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--color-ink-on-dark);
  line-height: var(--line-height-relaxed);
}

.post-content img {
  margin: var(--space-6) 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  cursor: zoom-in;
  transition: transform var(--transition-fast);
}

.post-content img:hover {
  transform: scale(1.01);
}

/* Image Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.9);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  cursor: zoom-out;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  transform: scale(0.95);
  transition: transform 0.2s ease;
}

.lightbox.active img {
  transform: scale(1);
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 50%;
  color: var(--color-ink-on-dark);
  font-size: 1.5rem;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.post-content a {
  text-decoration: underline;
  text-decoration-color: var(--color-brand);
  text-underline-offset: 2px;
}

/* Post footer */
.post-footer {
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.post-nav {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.post-nav-link {
  display: block;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast);
}

.post-nav-link:hover {
  border-color: var(--color-brand);
}

.post-nav-label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
  margin-bottom: var(--space-1);
}

.post-nav-title {
  display: block;
  font-weight: 500;
  color: var(--color-ink);
}

.post-cta {
  text-align: center;
  padding: var(--space-8);
  background-color: var(--color-surface-alt);
  border-radius: var(--radius-lg);
}

.post-cta h3 {
  margin-bottom: var(--space-2);
}

.post-cta p {
  margin-bottom: var(--space-4);
  color: var(--color-ink-muted);
}

@media (min-width: 768px) {
  .blog-header {
    padding: var(--space-20) 0 var(--space-10);
  }

  .blog-list {
    padding: var(--space-12) 0 var(--space-24);
  }

  .post-header {
    padding: var(--space-20) 0 var(--space-10);
  }

  .post-nav {
    grid-template-columns: 1fr 1fr;
  }

  .post-nav-prev {
    text-align: left;
  }

  .post-nav-next {
    text-align: right;
  }
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center {
  text-align: center;
}

.text-muted {
  color: var(--color-ink-muted);
}

/* --------------------------------------------------------------------------
   Tags Page
   -------------------------------------------------------------------------- */
.tags-list {
  padding: var(--space-8) 0 var(--space-16);
}

.tags-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.tag-card {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.tag-card:hover {
  border-color: var(--color-brand);
  box-shadow: var(--shadow-sm);
}

.tag-name {
  font-weight: 500;
  color: var(--color-ink);
}

.tag-count {
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.back-link {
  margin-top: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.back-link a {
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   About Page
   -------------------------------------------------------------------------- */
.about-header {
  padding: var(--space-16) 0 var(--space-8);
  background-color: var(--color-surface-alt);
  text-align: center;
}

.about-header h1 {
  margin-bottom: var(--space-4);
}

.about-header p {
  color: var(--color-ink-muted);
  font-size: var(--font-size-lg);
  max-width: 700px;
  margin: 0 auto;
  line-height: var(--line-height-relaxed);
}

.about-team {
  padding: var(--space-16) 0;
}

.about-team .section-title {
  text-align: center;
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-12);
}

.founders-grid {
  display: grid;
  gap: var(--space-8);
  max-width: 1000px;
  margin: 0 auto;
}

.founder-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  padding: var(--space-8);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.founder-card:hover {
  border-color: var(--color-brand);
  box-shadow: var(--shadow-lg);
}

.founder-photo {
  width: 140px;
  height: 140px;
  flex-shrink: 0;
  margin: 0 auto;
}

.founder-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--color-border);
}

.founder-info {
  text-align: center;
}

.founder-info h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-2);
}

.founder-role {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-brand);
  margin-bottom: var(--space-4);
}

.founder-bio {
  color: var(--color-ink-muted);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-3);
}

.founder-personal {
  font-size: var(--font-size-sm);
  color: var(--color-ink-light);
  font-style: italic;
}

.about-cta {
  padding: var(--space-16) 0;
}

.about-cta-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-10);
  background-color: var(--color-surface-alt);
  border-radius: var(--radius-lg);
}

.about-cta h2 {
  margin-bottom: var(--space-4);
}

.about-cta p {
  color: var(--color-ink-muted);
  margin-bottom: var(--space-6);
}

.about-cta-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

@media (min-width: 480px) {
  .about-cta-actions {
    flex-direction: row;
    justify-content: center;
  }
}

@media (min-width: 640px) {
  .founder-card {
    flex-direction: row;
    text-align: left;
  }

  .founder-photo {
    margin: 0;
  }

  .founder-info {
    text-align: left;
  }
}

@media (min-width: 768px) {
  .about-header {
    padding: var(--space-20) 0 var(--space-10);
  }

  .about-team {
    padding: var(--space-16) 0;
  }

  .about-cta {
    padding: var(--space-16) 0;
  }
}

/* --------------------------------------------------------------------------
   Error Page (404)
   -------------------------------------------------------------------------- */
.error-page {
  padding: var(--space-24) 0;
  text-align: center;
}

.error-content {
  max-width: 480px;
  margin: 0 auto;
}

.error-page h1 {
  font-size: 6rem;
  font-weight: 700;
  color: var(--color-brand);
  margin-bottom: var(--space-4);
  line-height: 1;
}

.error-page p {
  margin-bottom: var(--space-8);
  color: var(--color-ink-muted);
  font-size: var(--font-size-lg);
}

.error-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  justify-content: center;
}

@media (min-width: 640px) {
  .error-actions {
    flex-direction: row;
  }
}

/* --------------------------------------------------------------------------
   Docs Section
   -------------------------------------------------------------------------- */

/* Layout: sidebar + content */
.docs-layout {
  display: flex;
  flex-direction: column;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
  min-height: calc(100vh - 200px);
}

/* Sidebar */
.docs-sidebar {
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-border);
}

.docs-nav-title {
  display: none;
}

.docs-nav-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-2) 0;
  background: none;
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
}

.docs-nav-chevron {
  transition: transform var(--transition-fast);
}

.docs-nav-toggle[aria-expanded="true"] .docs-nav-chevron {
  transform: rotate(180deg);
}

.docs-nav-menu {
  display: none;
  padding: var(--space-2) 0 0;
}

.docs-nav-menu.is-open {
  display: block;
}

.docs-nav-overview {
  margin-bottom: var(--space-4);
  font-weight: 500;
}

.docs-nav-group {
  margin-bottom: var(--space-5);
}

.docs-nav-group-title {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
  margin: 0 0 var(--space-2) var(--space-3);
}

.docs-nav-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.docs-nav-link {
  display: block;
  padding: var(--space-2) var(--space-3);
  color: var(--color-ink);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.docs-nav-link:hover {
  color: var(--color-brand);
  background-color: var(--color-surface-alt);
}

.docs-nav-link.is-active {
  color: var(--color-brand);
  background-color: var(--color-brand-tint);
  font-weight: 500;
}

/* Docs content area */
.docs-content {
  flex: 1;
  min-width: 0;
  padding: var(--space-8) 0 var(--space-16);
}

.docs-content-inner {
  max-width: var(--container-narrow);
}

/* Prose styling for markdown content */
.docs-content h1 {
  margin-bottom: var(--space-6);
}

.docs-content h2 {
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
}

.docs-content h3 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.docs-content h4 {
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
}

.docs-content p {
  margin-bottom: var(--space-6);
  line-height: var(--line-height-relaxed);
}

.docs-content ul,
.docs-content ol {
  margin-bottom: var(--space-6);
  padding-left: var(--space-6);
}

.docs-content li {
  margin-bottom: var(--space-2);
  line-height: var(--line-height-relaxed);
}

.docs-content blockquote {
  margin: var(--space-6) 0;
  padding: var(--space-4) var(--space-6);
  border-left: 4px solid var(--color-brand);
  background-color: var(--color-surface-alt);
  font-style: italic;
}

.docs-content pre {
  margin: var(--space-6) 0;
  padding: var(--space-4);
  background-color: var(--color-surface-dark);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

.docs-content pre code {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--color-ink-on-dark);
  line-height: var(--line-height-relaxed);
}

.docs-content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: var(--color-surface-alt);
  padding: 0.125em 0.375em;
  border-radius: var(--radius-sm);
}

.docs-content pre code {
  background-color: transparent;
  padding: 0;
  border-radius: 0;
}

.docs-content a {
  text-decoration: underline;
  text-decoration-color: var(--color-brand);
  text-underline-offset: 2px;
}

/* Tables */
.docs-content table {
  width: 100%;
  margin: var(--space-6) 0;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.docs-content th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-weight: 600;
  color: var(--color-ink-muted);
  border-bottom: 2px solid var(--color-border);
}

.docs-content td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.docs-content td code {
  white-space: nowrap;
}

/* Section dividers and scroll offset */
.docs-section {
  scroll-margin-top: 90px;
}

.docs-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-12) 0;
}

/* On-page table of contents (right rail) — hidden until there's room for a third column */
.docs-toc {
  display: none;
}

.docs-toc-title {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
  margin: 0 0 var(--space-3);
}

.docs-toc-list,
.docs-toc-sublist {
  list-style: none;
  margin: 0;
  padding: 0;
}

.docs-toc-sublist {
  padding-left: var(--space-3);
}

.docs-toc-item {
  margin-bottom: var(--space-1);
}

.docs-toc-link {
  display: block;
  padding: var(--space-1) var(--space-2);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-tight);
  color: var(--color-ink-muted);
  border-left: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.docs-toc-link-sub {
  font-size: var(--font-size-xs);
}

.docs-toc-link:hover {
  color: var(--color-brand);
}

.docs-toc-link.is-active {
  color: var(--color-brand);
  border-left-color: var(--color-brand);
}

/* Docs overview (landing) cards */
.docs-overview-group {
  margin-top: var(--space-10);
}

.docs-overview-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-4);
}

.docs-card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

/* Scoped under .docs-overview to override the underline on .docs-content a */
.docs-overview .docs-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.docs-overview .docs-card:hover {
  border-color: var(--color-brand);
  background-color: var(--color-surface-alt);
  box-shadow: var(--shadow-sm);
}

.docs-overview .docs-card-title {
  font-weight: 600;
  color: var(--color-ink);
}

.docs-overview .docs-card:hover .docs-card-title {
  color: var(--color-brand);
}

.docs-overview .docs-card-desc {
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
  line-height: var(--line-height-normal);
}

@media (min-width: 640px) {
  .docs-card-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Tablet and up: sidebar on left */
@media (min-width: 768px) {
  .docs-layout {
    flex-direction: row;
    padding: 0 var(--space-6);
  }

  .docs-sidebar {
    position: sticky;
    top: 80px;
    align-self: flex-start;
    width: 220px;
    flex-shrink: 0;
    padding: var(--space-8) var(--space-6) var(--space-8) 0;
    border-bottom: none;
    border-right: 1px solid var(--color-border);
    max-height: calc(100vh - 80px);
    overflow-y: auto;
  }

  .docs-nav-title {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-ink-muted);
    margin-bottom: var(--space-4);
  }

  .docs-nav-toggle {
    display: none;
  }

  .docs-nav-menu {
    display: block;
  }

  .docs-content {
    padding: var(--space-8) var(--space-8) var(--space-16);
  }
}

@media (min-width: 1024px) {
  .docs-sidebar {
    width: 240px;
  }

  /* Right-rail on-page TOC appears only when there's room for a third column. */
  .docs-toc {
    display: block;
    position: sticky;
    top: 80px;
    align-self: flex-start;
    width: 200px;
    flex-shrink: 0;
    padding: var(--space-8) 0;
    max-height: calc(100vh - 80px);
    overflow-y: auto;
  }
}

/* --------------------------------------------------------------------------
   Hero CTA secondary anchor / cta restructure
   -------------------------------------------------------------------------- */
.cta-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.cta-actions-note {
  font-size: var(--font-size-sm);
  color: var(--color-ink-light);
}

.cta-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.cta-divider::before,
.cta-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background-color: rgba(255, 255, 255, 0.15);
}

/* --------------------------------------------------------------------------
   Comparison Section
   -------------------------------------------------------------------------- */
.comparison {
  padding: var(--space-16) 0;
  background-color: var(--color-surface);
}

.comparison-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.comparison-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
  vertical-align: top;
}

.comparison-table thead th {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-ink);
}

.comparison-table tbody th {
  font-weight: 600;
  color: var(--color-ink);
  white-space: nowrap;
}

.comparison-table td {
  color: var(--color-ink-muted);
}

.comparison-col-highlight {
  background-color: var(--color-brand-tint);
  color: var(--color-brand) !important;
  font-weight: 600;
}

.comparison-table thead .comparison-col-highlight {
  color: var(--color-brand);
  border-top-left-radius: var(--radius-md);
  border-top-right-radius: var(--radius-md);
}

/* --------------------------------------------------------------------------
   Savings Calculator Section
   -------------------------------------------------------------------------- */
.savings {
  padding: var(--space-16) 0;
  background-color: var(--color-surface);
}

.savings-card {
  display: grid;
  gap: var(--space-8);
  max-width: 920px;
  margin: 0 auto;
  padding: var(--space-8);
  background-color: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.savings-inputs {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.savings-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.savings-field label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-ink);
}

.savings-field label span {
  font-weight: 400;
  color: var(--color-ink-muted);
}

.savings-field input[type="number"],
.savings-field select {
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  font-family: inherit;
  color: var(--color-ink);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
}

.savings-field select {
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.savings-field input[type="number"]:focus,
.savings-field select:focus {
  outline: 2px solid var(--color-brand);
  outline-offset: 1px;
}

.savings-field input[type="range"] {
  width: 100%;
  accent-color: var(--color-brand);
}

.savings-output {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.savings-headline {
  display: flex;
  flex-direction: column;
}

.savings-amount {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  line-height: var(--line-height-tight);
  color: var(--color-good);
}

.savings-amount-zero {
  color: var(--color-ink-muted);
}

.savings-label {
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.savings-detail {
  color: var(--color-ink-muted);
  font-size: var(--font-size-base);
}

.savings-detail strong {
  color: var(--color-ink);
}

.savings-note {
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.savings-disclaimer {
  font-size: var(--font-size-xs);
  color: var(--color-ink-light);
}

@media (min-width: 768px) {
  .comparison,
  .savings {
    padding: var(--space-24) 0;
  }

  .savings-card {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

/* --------------------------------------------------------------------------
   Honest Limits Section
   -------------------------------------------------------------------------- */
.limits {
  padding: var(--space-16) 0;
  background-color: var(--color-surface-alt);
}

.limits-grid {
  display: grid;
  gap: var(--space-6);
}

.limit-card {
  padding: var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.limit-card.limit-soon {
  border-color: var(--color-brand);
}

.limit-tag {
  display: inline-block;
  margin-bottom: var(--space-3);
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-brand);
  background-color: var(--color-brand-tint);
  border-radius: var(--radius-sm);
}

.limit-tag-no {
  color: var(--color-ink-muted);
  background-color: var(--color-surface-alt);
}

.limit-card h3 {
  margin-bottom: var(--space-2);
  font-size: var(--font-size-lg);
}

.limit-card p {
  color: var(--color-ink-muted);
  font-size: var(--font-size-sm);
}

.limits-footnote {
  margin-top: var(--space-8);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.limits-fit {
  margin-top: var(--space-3);
  text-align: center;
  font-size: var(--font-size-base);
}

@media (min-width: 640px) {
  .limits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .limits {
    padding: var(--space-24) 0;
  }
}

@media (min-width: 1024px) {
  .limits-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* --------------------------------------------------------------------------
   Comparison Table - Mobile Stacked Layout
   -------------------------------------------------------------------------- */
@media (max-width: 767px) {
  .comparison-table-wrap {
    overflow-x: visible;
  }

  .comparison-table,
  .comparison-table tbody,
  .comparison-table tr,
  .comparison-table td,
  .comparison-table tbody th {
    display: block;
    width: 100%;
  }

  .comparison-table {
    min-width: 0;
  }

  .comparison-table thead {
    display: none;
  }

  .comparison-table tbody tr {
    margin-bottom: var(--space-6);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
  }

  .comparison-table tbody tr:last-child {
    margin-bottom: 0;
  }

  .comparison-table tbody th[scope="row"] {
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
    background-color: var(--color-surface-alt);
    border-bottom: 1px solid var(--color-border);
    white-space: normal;
  }

  .comparison-table td {
    display: flex;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-4);
    text-align: right;
    border-bottom: 1px solid var(--color-border);
  }

  .comparison-table td:last-child {
    border-bottom: 0;
  }

  .comparison-table td::before {
    content: attr(data-col);
    font-weight: 600;
    color: var(--color-ink-muted);
    text-align: left;
  }

  .comparison-table td.comparison-col-highlight {
    font-weight: 600;
  }
}

/* --------------------------------------------------------------------------
   Design Partner Testimonial
   -------------------------------------------------------------------------- */
.testimonial {
  padding: var(--space-16) 0;
  background-color: var(--color-surface);
}

.testimonial-card {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-8);
  text-align: center;
  background-color: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.testimonial-label {
  margin-bottom: var(--space-5);
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-brand);
}

.testimonial-quote {
  margin-bottom: var(--space-6);
  font-size: var(--font-size-xl);
  line-height: var(--line-height-normal);
  color: var(--color-ink);
}

.testimonial-attribution {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.testimonial-logo {
  display: inline-flex;
}

.testimonial-logo img {
  height: 36px;
  width: auto;
  display: block;
}

.testimonial-person {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.testimonial-name {
  font-weight: 700;
  color: var(--color-ink);
}

.testimonial-role {
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.testimonial-role a {
  color: var(--color-brand);
  text-decoration: underline;
}

@media (min-width: 768px) {
  .testimonial {
    padding: var(--space-20) 0;
  }

  .testimonial-quote {
    font-size: var(--font-size-2xl);
  }
}

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

  html {
    scroll-behavior: auto;
  }
}

/* --------------------------------------------------------------------------
   Dev strip — project facts directly under the hero
   -------------------------------------------------------------------------- */
.devstrip {
  padding: var(--space-4) 0;
  background-color: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.devstrip-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2) var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.devstrip-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  white-space: nowrap;
}

.devstrip-item a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-ink);
  text-decoration: none;
  font-weight: 600;
}

.devstrip-item a:hover {
  color: var(--color-brand);
}

.devstrip-item code {
  padding: 0;
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  background-color: transparent;
}

.devstrip-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-good);
  flex: none;
}

.fit-about {
  padding: var(--space-16) 0;
  background-color: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
}

/* --------------------------------------------------------------------------
   Fit Analyzer teaser (homepage, directly below the hero)
   -------------------------------------------------------------------------- */
.fit-teaser {
  padding: var(--space-16) 0;
  background-color: var(--color-surface);
}

.fit-teaser-grid {
  display: grid;
  gap: var(--space-10);
  align-items: center;
}

.fit-teaser-kicker {
  display: inline-block;
  margin-bottom: var(--space-4);
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-brand);
  background-color: var(--color-brand-tint);
  border-radius: var(--radius-sm);
}

.fit-teaser-copy h2 {
  margin-bottom: var(--space-4);
}

.fit-teaser-lead {
  margin-bottom: var(--space-6);
  color: var(--color-ink-muted);
  font-size: var(--font-size-lg);
}

.fit-teaser-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.fit-teaser-note {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

/* The card mirrors the analyzer's own answer panel, so what the reader sees
   here is what they get on /fit/. Kept in sync by hand: see the comment in
   templates/partials/fit-teaser.html. */
.fit-teaser-card {
  margin: 0;
  min-width: 0;
}

.fit-teaser-panel {
  padding: var(--space-5) var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.fit-teaser-eyebrow {
  margin: 0;
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.fit-teaser-line {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.fit-teaser-big {
  font-size: 3rem;
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--color-hot-deep);
}

.fit-teaser-what {
  max-width: 18ch;
  font-size: var(--font-size-lg);
  font-weight: 600;
  line-height: 1.2;
}

.fit-teaser-sub {
  margin: var(--space-2) 0 0;
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.fit-teaser-sub b {
  color: var(--color-ink);
  font-weight: 600;
}

.fit-teaser-bar {
  display: flex;
  gap: 2px;
  height: 30px;
  margin-top: var(--space-5);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.fit-teaser-bar span {
  display: block;
  height: 100%;
  min-width: 2px;
  background-color: var(--fit-accent);
}

.fit-teaser-labels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.fit-teaser-label {
  min-width: 0;
  padding-left: var(--space-2);
  border-left: 3px solid var(--fit-accent);
}

.fit-teaser-pct {
  display: block;
  font-size: var(--font-size-lg);
  font-weight: 700;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.fit-teaser-name {
  display: block;
  font-size: var(--font-size-sm);
  line-height: 1.25;
  color: var(--color-ink-muted);
}

/* Categorical outcome colours, in the analyzer's fixed order. */
.fit-teaser-cacheable { --fit-accent: var(--cat-cacheable); }
.fit-teaser-forwarded { --fit-accent: var(--cat-forwarded); }
.fit-teaser-writes { --fit-accent: var(--cat-writes); }
.fit-teaser-commands { --fit-accent: var(--cat-commands); }

.fit-teaser-caption {
  margin-top: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
  text-align: center;
}

@media (min-width: 640px) {
  .fit-teaser-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (min-width: 768px) {
  .fit-teaser {
    padding: var(--space-20) 0;
  }
}

@media (min-width: 900px) {
  .fit-teaser-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: var(--space-12);
  }

  .fit-teaser-big {
    font-size: 3.5rem;
  }

  .fit-teaser-labels {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .fit-teaser-name {
    font-size: var(--font-size-xs);
  }
}

/* --------------------------------------------------------------------------
   Benchmarks page + homepage proof strip
   -------------------------------------------------------------------------- */
.proof {
  padding: var(--space-16) 0;
}

.proof-grid {
  display: grid;
  gap: var(--space-4);
}

.proof-stat {
  padding: var(--space-5);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.proof-query {
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.proof-numbers {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-variant-numeric: tabular-nums;
}

.proof-before {
  font-size: var(--font-size-lg);
  color: var(--color-ink-muted);
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}

.proof-stat-flat .proof-before {
  text-decoration: none;
}

.proof-arrow {
  color: var(--color-ink-muted);
}

.proof-after {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-hot-deep);
}

.proof-stat-flat .proof-after {
  color: var(--color-ink-muted);
}

.proof-note {
  margin-top: var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
}

.proof-footnote {
  margin-top: var(--space-8);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.proof-footnote a {
  display: inline-block;
  margin-left: var(--space-2);
  font-weight: 600;
}

/* Benchmarks page */
.bench {
  padding: var(--space-12) 0 var(--space-10);
}

.bench-section-title {
  margin-top: 0;
  margin-bottom: var(--space-10);
  font-size: var(--font-size-3xl);
  letter-spacing: -0.01em;
}

.bench-card:last-child {
  margin-bottom: 0;
}

.bench-section-note {
  max-width: var(--container-narrow);
  margin-bottom: var(--space-6);
  color: var(--color-ink-muted);
}

.bench-card {
  margin-bottom: var(--space-6);
  padding: var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.bench-card-harness {
  border-color: var(--color-brand);
}

.bench-card-head {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-5);
}

.bench-author {
  margin-bottom: var(--space-1);
  font-size: var(--font-size-xl);
}

.bench-affiliation {
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.bench-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.bench-tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-brand);
  background-color: var(--color-brand-tint);
  border-radius: var(--radius-sm);
}

.bench-table-wrap {
  overflow-x: auto;
  margin-bottom: var(--space-5);
}

.bench-table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.bench-table th,
.bench-table td {
  padding: var(--space-3);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.bench-table thead th {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
  white-space: nowrap;
}

.bench-table tbody th {
  font-weight: 600;
}

.bench-table tbody td {
  white-space: nowrap;
}

.bench-table tbody tr:last-child th,
.bench-table tbody tr:last-child td {
  border-bottom: none;
}

.bench-table tbody td:last-child {
  font-weight: 700;
  color: var(--color-brand);
}

.bench-row-flat td:last-child {
  font-weight: 600;
  color: var(--color-ink-muted);
}

.bench-note {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
}

.bench-detail {
  margin-bottom: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.bench-caveat {
  padding: var(--space-4);
  background-color: var(--color-surface-alt);
  border-radius: var(--radius-md);
}

.bench-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-5);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.bench-gaps {
  max-width: var(--container-narrow);
  color: var(--color-ink-muted);
}

.bench-gaps ul {
  margin: var(--space-4) 0;
  padding-left: var(--space-5);
}

.bench-gaps li {
  margin-bottom: var(--space-2);
}

@media (min-width: 640px) {
  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .proof {
    padding: var(--space-24) 0;
  }

  .bench {
    padding: var(--space-16) 0 var(--space-12);
  }

  .bench-card {
    padding: var(--space-8);
  }
}

@media (min-width: 1024px) {
  .proof-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Benchmarks: our harness section, visually separated from independent results */
.bench-ours {
  padding: var(--space-10) 0 var(--space-12);
  background-color: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.bench-invite-strip {
  padding: var(--space-6) 0 var(--space-12);
}

.bench-invite {
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

@media (min-width: 768px) {
  .bench-ours {
    padding: var(--space-12) 0 var(--space-16);
  }

  .bench-invite-strip {
    padding: var(--space-8) 0 var(--space-16);
  }

  .bench-section-title {
    font-size: var(--font-size-4xl);
  }
}