/*
 * Shared 6DoF landing-page styles
 *
 * The sheet is deliberately dependency free. Site-specific pages can add a
 * small stylesheet after this file, while retaining the layout, focus and
 * colour primitives below.
 */

@font-face {
  font-family: "UbuntuLocal";
  src: url("fonts/ubuntu-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  size-adjust: 100%;
  ascent-override: 92%;
  descent-override: 24%;
  line-gap-override: 0%;
}

@font-face {
  font-family: "UbuntuLocalFallback";
  src: local("Arial");
  font-style: normal;
  font-weight: 300 800;
  size-adjust: 100%;
  ascent-override: 92%;
  descent-override: 24%;
  line-gap-override: 0%;
}

:root {
  color-scheme: dark;

  /* The available self-hosted Ubuntu subset is used for every family. */
  --font-sans: "UbuntuLocal", "UbuntuLocalFallback", ui-sans-serif,
    -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "UbuntuLocal", "UbuntuLocalFallback", ui-sans-serif,
    sans-serif;
  --font-mono: "UbuntuLocal", "UbuntuLocalFallback", ui-monospace,
    SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;

  /* Canonical design tokens: dark is the deterministic default. */
  --bg: #0B0D10;
  --bg-elevated: #14171B;
  --text: #F2F4F6;
  --text-muted: #9AA3AC;
  --border-subtle: #262B31;
  --border-strong: #5C6570;
  --accent: #E7A33B;
  --accent-soft: #342712;
  --accent-contrast: #0B0D10;
  --cross-accent: #2FC2E0;

  /* Compatibility aliases used by the component rules below. */
  --color-bg: var(--bg);
  --color-surface: var(--bg-elevated);
  --color-surface-raised: var(--bg-elevated);
  --color-surface-muted: #1A1E23;
  --color-text: var(--text);
  --color-text-muted: var(--text-muted);
  --color-heading: var(--text);
  --color-border: var(--border-subtle);
  --color-border-strong: var(--border-strong);
  --color-accent: var(--accent);
  --color-accent-strong: var(--accent);
  --color-accent-soft: var(--accent-soft);
  --color-accent-contrast: var(--accent-contrast);
  --color-link: var(--accent);
  --color-link-visited: var(--accent);
  --color-focus: var(--accent);
  --color-success: #8FD8B2;
  --color-warning: #F4C76B;
  --color-danger: #FF9AA8;
  --color-placeholder: #1D2228;
  --color-placeholder-line: var(--border-strong);
  --color-overlay: rgb(0 0 0 / 0.76);

  /* Kept as a token for existing component declarations; no gradient is used. */
  --gradient-accent: var(--accent);
  --shadow-sm: 0 1px 2px rgb(0 0 0 / 0.26);
  --shadow-md: 0 12px 32px rgb(0 0 0 / 0.28);
  --shadow-lg: 0 24px 64px rgb(0 0 0 / 0.36);

  --radius-xs: 2px;
  --radius-sm: 3px;
  --radius-md: 4px;
  --radius-lg: 6px;
  --radius-pill: 4px;

  --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;

  --container-max: 76rem;
  --container-gutter: clamp(1rem, 4vw, 2.5rem);
  --header-height: 4.5rem;
  --reading-width: 44rem;
  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --transition-standard: 180ms var(--ease-standard);
}

/* Explicit theme controls always win; the OS colour scheme is ignored. */
[data-theme="light"] {
  color-scheme: light;
  --bg: #F7F8F8;
  --bg-elevated: #FFFFFF;
  --text: #12151A;
  --text-muted: #5B646D;
  --border-subtle: #E3E6E8;
  --border-strong: #7E858D;
  --accent: #865913;
  --accent-soft: #F3E8D2;
  --accent-contrast: #F2F4F6;
  --cross-accent: #126A7D;
  --color-surface-muted: #F0F2F3;
  --color-placeholder: #E9ECEE;
  --color-overlay: rgb(11 13 16 / 0.72);
  --gradient-accent: var(--accent);
  --shadow-sm: 0 1px 2px rgb(18 21 26 / 0.08);
  --shadow-md: 0 12px 32px rgb(18 21 26 / 0.1);
  --shadow-lg: 0 24px 64px rgb(18 21 26 / 0.14);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0B0D10;
  --bg-elevated: #14171B;
  --text: #F2F4F6;
  --text-muted: #9AA3AC;
  --border-subtle: #262B31;
  --border-strong: #5C6570;
  --accent: #E7A33B;
  --accent-soft: #342712;
  --accent-contrast: #0B0D10;
  --cross-accent: #2FC2E0;
  --color-surface-muted: #1A1E23;
  --color-placeholder: #1D2228;
  --color-overlay: rgb(0 0 0 / 0.76);
  --gradient-accent: var(--accent);
  --shadow-sm: 0 1px 2px rgb(0 0 0 / 0.26);
  --shadow-md: 0 12px 32px rgb(0 0 0 / 0.28);
  --shadow-lg: 0 24px 64px rgb(0 0 0 / 0.36);
}

/* The video mark swaps only the accent token; all neutrals stay shared. */
[data-site="video"] {
  --accent: #2FC2E0;
  --accent-soft: #12313A;
  --cross-accent: #E7A33B;
}

[data-site="video"][data-theme="light"] {
  --accent: #126A7D;
  --accent-soft: #D8EEF2;
  --cross-accent: #865913;
}

/* A higher contrast setting is useful for users who request it at OS level. */
@media (prefers-contrast: more) {
  :root {
    --color-text-muted: var(--color-text);
    --color-border: var(--color-border-strong);
    --shadow-sm: 0 0 0 1px var(--color-border);
    --shadow-md: 0 0 0 1px var(--color-border);
    --shadow-lg: 0 0 0 1px var(--color-border);
  }
}

[data-contrast="more"] {
  --color-text-muted: var(--color-text);
  --color-border: var(--color-border-strong);
  --shadow-sm: 0 0 0 1px var(--color-border);
  --shadow-md: 0 0 0 1px var(--color-border);
  --shadow-lg: 0 0 0 1px var(--color-border);
}

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

html {
  min-width: 320px;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 100%;
  line-height: 1.5;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 1rem;
  text-rendering: optimizeLegibility;
}

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

img,
video {
  height: auto;
}

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

button,
[role="button"] {
  cursor: pointer;
}

button:disabled,
[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.6;
}

a {
  color: var(--color-link);
  text-decoration-thickness: 0.1em;
  text-underline-offset: 0.15em;
}

a:visited {
  color: var(--color-link-visited);
}

a:hover {
  color: var(--color-accent-strong);
}

:where(a, button, input, select, textarea, summary, [tabindex]:not([tabindex="-1"])):focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

:where(a, button, input, select, textarea, summary, [tabindex]:not([tabindex="-1"])):focus:not(:focus-visible) {
  outline: none;
}

::selection {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
figure {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  color: var(--color-heading);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.12;
}

h1 {
  margin-bottom: var(--space-5);
  font-size: clamp(2.4rem, 7vw, 5.75rem);
}

h2 {
  margin-bottom: var(--space-4);
  font-size: clamp(2rem, 4vw, 3.25rem);
}

h3 {
  margin-bottom: var(--space-3);
  font-size: clamp(1.35rem, 2vw, 1.75rem);
}

h4 {
  margin-bottom: var(--space-2);
  font-size: 1.125rem;
}

p {
  margin-bottom: var(--space-4);
}

p:last-child {
  margin-bottom: 0;
}

ul,
ol {
  padding-inline-start: 1.35em;
}

.skip-link {
  position: absolute;
  z-index: 100;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--color-heading);
  color: var(--color-bg);
  transform: translateY(-200%);
}

.skip-link:focus-visible {
  transform: translateY(0);
}

.container {
  width: min(100% - (var(--container-gutter) * 2), var(--container-max));
  margin-inline: auto;
}

.reading-width {
  max-width: var(--reading-width);
}

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

.section {
  padding-block: clamp(var(--space-16), 10vw, var(--space-24));
}

.section--compact {
  padding-block: clamp(var(--space-10), 7vw, var(--space-16));
}

.section-header {
  max-width: 45rem;
  margin-bottom: clamp(var(--space-8), 6vw, var(--space-12));
}

.section-kicker,
.eyebrow {
  display: block;
  margin-bottom: var(--space-3);
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.3;
  text-transform: uppercase;
}

.section-intro {
  max-width: 42rem;
  color: var(--color-text-muted);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
}

.section--tint {
  background: var(--color-surface-muted);
}

.technical-note {
  max-width: var(--reading-width);
  margin-top: var(--space-6);
  padding-inline-start: var(--space-4);
  border-inline-start: 3px solid var(--color-accent);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Legal pages reuse the reading layout while keeping long-form information easy to scan. */
.legal-page {
  min-height: calc(100vh - var(--header-height));
}

.legal-content > h2 {
  margin-top: clamp(var(--space-8), 7vw, var(--space-12));
}

.legal-content > h3 {
  margin-top: var(--space-6);
}

.legal-content address {
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
  font-style: normal;
  line-height: 1.7;
}

.legal-notice {
  margin-bottom: var(--space-8);
  padding: var(--space-5);
  border: 1px solid var(--color-border-strong);
  border-inline-start: 3px solid var(--color-accent);
  border-radius: var(--radius-md);
  background: var(--color-surface-muted);
}

.legal-notice p {
  color: var(--color-text-muted);
}

.legal-notice p:last-child {
  margin-bottom: 0;
}

.legal-meta {
  margin-top: clamp(var(--space-10), 8vw, var(--space-16));
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Header and primary navigation */
.site-header {
  position: relative;
  z-index: 20;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
}

@supports (backdrop-filter: blur(10px)) {
  .site-header {
    position: sticky;
    top: 0;
    background: var(--color-bg);
    background: color-mix(in srgb, var(--color-bg) 82%, transparent);
    backdrop-filter: blur(14px);
  }
}

.header-inner {
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand,
.site-brand {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-heading);
  font-size: 1.05rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand:hover,
.site-brand:hover {
  color: var(--color-heading);
}

.brand__accent {
  color: var(--color-accent-strong);
}

.brand-mark {
  display: grid;
  width: 2rem;
  aspect-ratio: 1;
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--accent-contrast);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: -0.08em;
}

.header-controls,
.site-controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(var(--space-3), 2.5vw, var(--space-8));
}

.site-nav ul,
.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(var(--space-3), 2.5vw, var(--space-8));
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a,
.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"],
.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--color-heading);
}

/* Cross-links carry the sister site's accent to make the relationship clear. */
.site-nav a[href*="6dof.video"],
.footer-nav a[href*="6dof.video"],
.site-nav a[href*="6dof.photos"],
.footer-nav a[href*="6dof.photos"] {
  color: var(--cross-accent);
}

.site-nav a[href*="6dof.video"]:hover,
.footer-nav a[href*="6dof.video"]:hover,
.site-nav a[href*="6dof.photos"]:hover,
.footer-nav a[href*="6dof.photos"]:hover {
  color: var(--cross-accent);
}

.nav-toggle {
  display: none;
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.nav-toggle-icon,
.nav-toggle::before,
.nav-toggle::after {
  width: 1.25rem;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.nav-toggle::before,
.nav-toggle::after {
  content: "";
}

.nav-toggle {
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-direction: column;
}

.language-switcher,
.theme-switcher {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.language-switcher a,
.language-switcher button,
.theme-switcher button,
.switcher-button,
.theme-toggle {
  display: inline-grid;
  min-width: 2.5rem;
  min-height: 2.5rem;
  place-items: center;
  padding: var(--space-2) var(--space-3);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-decoration: none;
}

.language-switcher a:hover,
.language-switcher a[aria-current="page"],
.language-switcher button:hover,
.theme-switcher button:hover,
.switcher-button[aria-pressed="true"],
.theme-toggle:hover,
.theme-toggle[aria-pressed="true"] {
  border-color: var(--color-border);
  background: var(--color-surface-muted);
  color: var(--color-heading);
}

/* Buttons and links used as actions */
.button,
.btn {
  display: inline-flex;
  min-height: 2.875rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.65rem 1.15rem;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: var(--color-heading);
  color: var(--color-bg);
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: background-color var(--transition-standard), border-color var(--transition-standard),
    color var(--transition-standard), transform var(--transition-standard), box-shadow var(--transition-standard);
}

.button:hover,
.btn:hover {
  background: var(--color-accent-strong);
  color: var(--color-accent-contrast);
  transform: translateY(-1px);
}

.button--primary,
.btn--primary {
  border-color: var(--color-accent-strong);
  background: var(--accent);
  color: var(--accent-contrast);
  box-shadow: var(--shadow-sm);
}

.button--primary:hover,
.btn--primary:hover {
  background: var(--color-accent-strong);
  color: var(--color-accent-contrast);
  box-shadow: var(--shadow-md);
}

.button--secondary,
.btn--secondary {
  border-color: var(--color-border-strong);
  background: var(--color-surface);
  color: var(--color-heading);
}

.button--secondary:hover,
.btn--secondary:hover {
  border-color: var(--color-accent-strong);
  background: var(--color-accent-soft);
  color: var(--color-heading);
}

.button--quiet,
.btn--quiet {
  min-height: 2.5rem;
  padding-inline: 0.75rem;
  background: transparent;
  color: var(--color-link);
}

.button--quiet:hover,
.btn--quiet:hover {
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
}

.button-group,
.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(var(--space-12), 9vw, var(--space-24));
}

.hero::before {
  position: absolute;
  z-index: -1;
  top: -18rem;
  right: -8rem;
  width: min(52rem, 80vw);
  height: min(52rem, 80vw);
  border-radius: 50%;
  background: transparent;
  content: "";
  pointer-events: none;
}

.hero-grid {
  display: grid;
  align-items: center;
  gap: clamp(var(--space-10), 7vw, var(--space-20));
  grid-template-columns: minmax(0, 1.05fr) minmax(18rem, 0.95fr);
}

.hero-copy {
  max-width: 42rem;
}

.hero-copy > p:not(.eyebrow) {
  max-width: 38rem;
  color: var(--color-text-muted);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.hero-visual {
  width: 100%;
  min-width: 0;
  margin-inline: 0;
}

.visual-frame,
.media-placeholder,
.visual-placeholder {
  position: relative;
  display: grid;
  width: 100%;
  aspect-ratio: 4 / 3;
  min-height: 16rem;
  overflow: hidden;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-placeholder);
  box-shadow: var(--shadow-lg);
  isolation: isolate;
}

.visual-frame::before,
.media-placeholder::before,
.visual-placeholder::before {
  position: absolute;
  inset: 0;
  background: transparent;
  content: "";
  pointer-events: none;
}

.visual-frame > :where(img, video, picture),
.media-placeholder > :where(img, video, picture),
.visual-placeholder > :where(img, video, picture) {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.placeholder-label {
  z-index: 1;
  max-width: 80%;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-placeholder-line);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-placeholder) 78%, var(--color-surface));
  color: var(--color-text-muted);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-align: center;
  text-transform: uppercase;
}

.hero-stat-row {
  display: grid;
  max-width: 34rem;
  margin-top: var(--space-10);
  gap: var(--space-3);
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.hero-stat {
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

.hero-stat strong {
  display: block;
  color: var(--color-heading);
  font-size: 1.15rem;
}

.hero-stat span {
  display: block;
  margin-top: var(--space-1);
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

/* 360° versus 6DoF comparison */
.comparison {
  background: var(--color-surface-muted);
}

.comparison-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.comparison-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: clamp(var(--space-5), 3vw, var(--space-8));
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.comparison-card--featured,
.comparison-card[data-featured="true"] {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent), var(--shadow-md);
}

.comparison-card header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.comparison-card h3 {
  margin-bottom: 0;
}

.comparison-tag {
  flex-shrink: 0;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.comparison-card p:not(.comparison-tag) {
  color: var(--color-text-muted);
}

.comparison-list,
.feature-list {
  display: grid;
  gap: var(--space-3);
  margin: auto 0 0;
  padding: var(--space-4) 0 0;
  border-top: 1px solid var(--color-border);
  list-style: none;
}

.comparison-list li,
.feature-list li {
  position: relative;
  padding-inline-start: 1.5rem;
}

.comparison-list li::before,
.feature-list li::before {
  position: absolute;
  top: 0.55em;
  left: 0.25rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--color-accent);
  content: "";
}

/* Use cases */
.use-case-grid,
.use-cases-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.use-case-card,
.use-cases-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  min-height: 100%;
  padding: clamp(var(--space-5), 2.5vw, var(--space-6));
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-standard), box-shadow var(--transition-standard), transform var(--transition-standard);
}

.use-case-card:hover,
.use-cases-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.use-case-icon {
  display: grid;
  width: 2.75rem;
  aspect-ratio: 1;
  margin-bottom: var(--space-5);
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  font-size: 1.2rem;
}

.card__index {
  margin-bottom: var(--space-3);
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.use-case-card p:not(.card__index),
.use-cases-card p:not(.card__index) {
  color: var(--color-text-muted);
}

.use-case-card a {
  margin-top: auto;
  padding-top: var(--space-4);
  font-weight: 700;
}

/* CTA and footer */
.cta {
  padding-block: clamp(var(--space-12), 9vw, var(--space-20));
}

.cta-panel {
  display: grid;
  align-items: center;
  gap: var(--space-8);
  grid-template-columns: minmax(0, 1fr) auto;
  padding: clamp(var(--space-6), 5vw, var(--space-12));
  border-radius: var(--radius-lg);
  background: var(--accent);
  color: var(--accent-contrast);
  box-shadow: var(--shadow-lg);
}

.cta-panel :where(h2, h3) {
  color: var(--accent-contrast);
}

.cta-panel p {
  max-width: 42rem;
  color: var(--accent-contrast);
}

.cta-panel :where(a, button, input, select, textarea, summary, [tabindex]:not([tabindex="-1"])):focus-visible {
  outline: 3px solid var(--accent-contrast);
  outline-offset: 3px;
}

.cta-panel .button--primary,
.cta-panel .btn--primary {
  border-color: var(--bg);
  background: var(--bg);
  color: var(--text);
  box-shadow: none;
}

.cta-panel .button--primary:hover,
.cta-panel .btn--primary:hover {
  background: var(--bg-elevated);
  color: var(--text);
}

.cta-panel .button--primary:link,
.cta-panel .button--primary:visited,
.cta-panel .btn--primary:link,
.cta-panel .btn--primary:visited {
  color: var(--text);
}

.cta-panel .button--quiet,
.cta-panel .btn--quiet,
.cta-panel .button--quiet:link,
.cta-panel .button--quiet:visited,
.cta-panel .btn--quiet:link,
.cta-panel .btn--quiet:visited,
.cta-panel .button--quiet:hover,
.cta-panel .btn--quiet:hover {
  background: transparent;
  color: var(--accent-contrast);
  text-decoration: underline;
}

.site-footer {
  padding-block: var(--space-10) var(--space-6);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.footer-grid {
  display: grid;
  gap: var(--space-8);
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
}

.footer-heading {
  margin-bottom: var(--space-3);
  color: var(--color-heading);
  font-size: 0.85rem;
  font-weight: 750;
}

.footer-nav,
.footer-links {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-nav a,
.footer-links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.footer-nav a:hover,
.footer-links a:hover {
  color: var(--color-heading);
  text-decoration: underline;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-10);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

/* Small utility primitives */
.muted {
  color: var(--color-text-muted);
}

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

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

@media (max-width: 64rem) {
  .use-case-grid,
  .use-cases-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-nav ul,
  .nav-list {
    gap: var(--space-4);
  }
}

@media (max-width: 48rem) {
  .header-inner {
    min-height: 4rem;
  }

  .site-footer .header-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  html.js .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-1) var(--space-2);
    position: static;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
  }

  .site-nav[data-mobile-nav],
  .site-nav[data-open="false"] {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    padding: var(--space-3) var(--container-gutter) var(--space-5);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
    box-shadow: var(--shadow-md);
  }

  .site-nav[data-mobile-nav][data-open="true"],
  .site-nav[data-open="true"],
  .site-nav.is-open {
    display: block;
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    padding: var(--space-3) var(--container-gutter) var(--space-5);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
    box-shadow: var(--shadow-md);
  }

  .site-nav[data-mobile-nav] ul,
  .site-nav[data-open] ul,
  .nav-list {
    align-items: stretch;
    flex-direction: column;
    gap: var(--space-1);
  }

  .site-nav[data-mobile-nav] a,
  .site-nav[data-open] a,
  .site-nav[data-mobile-nav] .theme-toggle,
  .site-nav[data-open] .theme-toggle,
  .nav-link {
    width: 100%;
    min-height: 2.75rem;
    padding-inline: var(--space-2);
  }

  .hero-grid,
  .cta-panel,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 44rem;
  }

  .hero-visual {
    max-width: 42rem;
  }

  .cta-actions {
    align-items: stretch;
  }

  .cta-actions .button,
  .cta-actions .btn {
    width: 100%;
  }
}

@media (max-width: 36rem) {
  .header-controls,
  .site-controls {
    gap: 0;
  }

  .header-controls .language-switcher,
  .site-controls .language-switcher {
    display: none;
  }

  .comparison-grid,
  .use-case-grid,
  .use-cases-grid {
    grid-template-columns: 1fr;
  }

  .comparison-card,
  .use-case-card,
  .use-cases-card {
    padding: var(--space-5);
  }

  .visual-frame,
  .media-placeholder,
  .visual-placeholder {
    aspect-ratio: 16 / 10;
    min-height: 12rem;
  }

  .hero-stat-row {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .hero-stat {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-3);
  }

  .hero-stat span {
    margin-top: 0;
    text-align: right;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}