/*
 * NietzX shared design system
 *
 * Fonts, colour tokens, spacing tokens, and components used by more than one
 * page live here. Page-specific composition remains in index.css/docs.css so
 * the existing cascades can evolve independently without selector collisions.
 */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 200;
  font-display: swap;
  src: url("../fonts/inter-latin-200-normal.2a1938cd178e.woff2") format("woff2");
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url("../fonts/inter-latin-300-normal.dbbd96470df8.woff2") format("woff2");
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/inter-latin-400-normal.73aaa95eab31.woff2") format("woff2");
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/inter-latin-500-normal.96948ea7ac03.woff2") format("woff2");
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/inter-latin-600-normal.0bf7eadca131.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono-latin-400-normal.4cc7b4398540.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono-latin-500-normal.bc5ccab82723.woff2") format("woff2");
}

:root {
  /* Canonical palette shared with the product page. */
  --page: #e3ffe8;
  --panel: #edfff0;
  --panel-2: #dbf8de;
  --titlebar-top: #e3ffe8;
  --titlebar-bottom: #e3ffe8;
  --border: #17201b;
  --border-soft: #6e7e72;
  --text: #17201b;
  --muted: #536257;
  --accent: #1d665d;
  --accent-dark: #123f3a;
  --accent-light: #d7f4f5;
  --warning: #f7efbd;
  --danger: #a62c39;
  --white: #fffef6;
  --shadow: transparent;

  /* Semantic surfaces used by documentation and shared components. */
  --line: rgba(23, 32, 27, 0.7);
  --line-soft: rgba(23, 32, 27, 0.23);
  --ink: var(--text);
  --green: var(--accent);
  --green-dark: var(--accent-dark);
  --code: #082e28;
  --code-ink: #e8fff0;
  --code-line: rgba(222, 255, 232, 0.2);
  --code-line-soft: rgba(222, 255, 232, 0.16);
  --code-control-line: rgba(222, 255, 232, 0.3);
  --code-label: #bfe3cb;
  --code-control-hover: #c8f1d5;
  --inline-code-surface: rgba(255, 255, 255, 0.42);
  --prose-strong: #273b31;
  --prose-body: #31463a;
  --callout-surface: rgba(247, 239, 189, 0.66);
  --callout-line: #856d18;
  --callout-text: #554b24;
  --header-glass: rgba(227, 255, 232, 0.78);
  --header-glass-scrolled: rgba(227, 255, 232, 0.9);
  --header-line: rgba(23, 32, 27, 0.2);
  --menu-glass: rgba(227, 255, 232, 0.86);
  --nav-backdrop: rgba(225, 255, 233, 0.08);
  --nav-overlay: rgba(235, 255, 238, 0.02);
  --nav-link-surface: rgba(255, 255, 255, 0.2);
  --nav-link-hover: rgba(255, 255, 255, 0.5);
  --on-accent: #effff3;

  /* Ambient canvas. */
  --ambient-top: #eaffed;
  --ambient-middle: #e4f6ef;
  --ambient-bottom: #dceefd;
  --ambient-blue-glow: rgba(66, 174, 226, 0.28);
  --ambient-green-glow: rgba(77, 194, 119, 0.25);

  /* Shared footer. */
  --footer-background: #393b39;
  --footer-text: #effff1;
  --footer-muted: rgba(239, 255, 241, 0.75);
  --footer-label: rgba(239, 255, 241, 0.67);
  --footer-line: rgba(239, 255, 241, 0.9);
  --footer-hover-text: #26342a;

  /* Typography, dimensions, and motion. */
  --font-ui: "Inter", "Helvetica Neue", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", "Cascadia Mono", Consolas, monospace;
  --font-control: var(--font-ui);
  --font-control-size: 13px;
  --font-control-weight: 600;
  /*
   * Hero subheading ("lead") — the prominent line beneath the page title.
   * Consumed by the shared .lead rule that both heroes use, so every page
   * presents the same subheading scale, tracking, and leading.
   */
  --font-lead: clamp(18px, 2vw, 26px);
  --line-lead: 1.14;
  --tracking-lead: -0.045em;
  --font-license-notice-heading: clamp(18px, calc(16.1px + 0.49vw), 23px);
  --font-license-notice-body: clamp(14px, calc(13.25px + 0.2vw), 16px);
  --line-license-notice-heading: 1.16;
  --line-license-notice-body: 1.5;
  --control-hover-surface: #bcebd1;
  --control-active-surface: #a7dfc2;
  --control-interaction-ink: #102c24;
  --control-interaction-border: #174c40;
  --control-focus-ring: #368877;
  --control-hover-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.72),
    inset 0 -1px 0 rgba(18, 63, 58, 0.14),
    0 7px 18px rgba(18, 63, 58, 0.15);
  --control-active-shadow:
    inset 0 2px 5px rgba(18, 63, 58, 0.2),
    0 1px 2px rgba(18, 63, 58, 0.12);
  --site-max-width: 1680px;
  --page-frame-inset: clamp(32px, 4vw, 72px);
  /*
   * Horizontal inset of primary content inside the frame. The product page
   * insets every content band by this amount (via its hero/section padding);
   * documentation reuses the same value so both pages share one left edge
   * (~20px on phones, ~49px on a 1440 desktop) instead of docs sitting flush.
   */
  --content-inset: clamp(20px, 3.4vw, 52px);
  --content-measure: 760px;
  --prose-measure: 780px;
  --gutter-fluid: clamp(32px, 4vw, 72px);
  --gutter-mobile: 12px;
  --grid-gap-fluid: clamp(30px, 5vw, 76px);
  --space-subsection: clamp(32px, 4vw, 52px);
  --header-height: 84px;
  --header-height-compact: 68px;
  --control-height: 42px;
  --radius-control: 6px;
  --radius-panel: 10px;
  --motion-fast: 180ms ease;
  --motion-control: 160ms cubic-bezier(0.2, 0.75, 0.3, 1);
  --motion-menu: 500ms ease;
}

/* Canonical reset, canvas, and type scale for every NietzX page. */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(70rem 54rem at 105% 2%, var(--ambient-blue-glow), transparent 62%),
    radial-gradient(58rem 48rem at -7% 48%, var(--ambient-green-glow), transparent 62%),
    linear-gradient(156deg, var(--ambient-top) 0%, var(--ambient-middle) 48%, var(--ambient-bottom) 100%);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.42;
  letter-spacing: -0.015em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-kerning: normal;
}

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

button,
a {
  touch-action: manipulation;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.17em;
}

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

code,
pre,
kbd,
samp {
  font-family: var(--font-mono);
}

img,
svg {
  display: block;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-weight: 300;
}

h3 {
  font-weight: 400;
}

/*
 * Shared hero header — the eyebrow, title, and lead cluster rendered by
 * templates/nietzx/partials/page_header.html on every page. Defined once here
 * so the three type + spacing relationships are identical across pages; each
 * page's own stylesheet only positions the cluster (max-width, wrapper, gap to
 * the next block). Kept at low specificity so those page rules win without
 * redefining the type.
 */
.eyebrow {
  display: block;
  margin-bottom: 16px;
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-title {
  margin-bottom: 22px;
}

.lead {
  margin-bottom: 0;
  color: var(--text);
  font-size: var(--font-lead);
  line-height: var(--line-lead);
  letter-spacing: var(--tracking-lead);
}

@media (max-width: 680px) {
  .hero-title {
    margin-bottom: 18px;
  }
}

/*
 * One horizontal frame for every primary page band. The inset represents
 * both side gutters together, keeping every consumer on identical edges.
 */
.site-frame {
  width: calc(100% - var(--page-frame-inset));
  max-width: none;
  margin-inline: auto;
}

@media (max-width: 780px) {
  :root {
    --page-frame-inset: 24px;
  }
}

h1 {
  font-size: clamp(34px, 6.6vw, 102px);
  line-height: 0.92;
  letter-spacing: -0.06em;
}

h2 {
  font-size: clamp(26px, 3.7vw, 56px);
  line-height: 1;
  letter-spacing: -0.05em;
}

h3 {
  margin-bottom: 12px;
  font-size: clamp(18px, 1.7vw, 23px);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

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

/* Shared site header and navigation. Both HTML pages use the same structure. */
html {
  scroll-padding-top: calc(var(--header-height) + 18px);
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 300;
  padding: 10px 12px;
  color: var(--white);
  background: var(--accent-dark);
  border: 1px solid var(--white);
  transform: translateY(-160%);
  transition: transform var(--motion-fast);
}

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

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

/*
 * Sentence-style actions use the UI face on every page. Keep the monospace
 * face for code, metadata, navigation labels, and compact technical controls.
 */
.button {
  font-family: var(--font-control);
  font-size: var(--font-control-size);
  font-weight: var(--font-control-weight);
  line-height: 1.25;
  letter-spacing: 0;
}

.sticky-top {
  position: sticky;
  top: 0;
  z-index: 80;
  width: 100%;
  background: var(--header-glass);
  -webkit-backdrop-filter: saturate(150%) blur(12px);
  backdrop-filter: saturate(150%) blur(12px);
  border-bottom: 1px solid transparent;
  box-shadow: none;
  transition: background var(--motion-fast), border-color var(--motion-fast);
}

.sticky-top.is-scrolled {
  background: var(--header-glass-scrolled);
  border-bottom-color: var(--border-soft);
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .sticky-top {
    background: var(--panel);
  }
}

.site-header {
  position: relative;
  top: auto;
  z-index: auto;
  display: flex;
  width: 100%;
  min-height: var(--header-height);
  align-items: center;
  gap: 20px;
  padding: 16px 20px;
  background: transparent;
  border: 0;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  height: var(--control-height);
  min-width: 0;
  align-items: stretch;
  gap: 0;
  color: var(--text);
  text-decoration: none;
}

.brand:hover,
.brand:focus-visible {
  color: var(--text);
}

.brand:focus-visible {
  outline: 2px solid var(--control-focus-ring);
  outline-offset: 4px;
}

.brand-lockup {
  display: flex;
  height: 100%;
  min-width: 0;
  align-items: stretch;
}

.brand .brand-mark,
.brand .brand-name,
.brand > .brand-labs,
.brand > div.brand-labs {
  display: flex;
  height: 100%;
  min-height: 0;
  align-items: center;
  padding: 6px 10px;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border);
  box-shadow: none;
  line-height: 1;
}

.brand .brand-mark {
  flex: 0 0 var(--control-height);
  width: var(--control-height);
  justify-content: center;
  padding: 0;
  border-radius: var(--radius-control) 0 0 var(--radius-control) !important;
  font-size: 20px;
  font-weight: 500;
}

.brand .brand-mark .mk {
  display: inline-flex;
  align-items: baseline;
}

.brand .brand-mark .chi {
  position: relative;
  top: -0.08em;
  font-family: Georgia, serif;
  font-weight: 700;
}

.brand .brand-name {
  min-width: 0;
  border-right: 0;
  border-left: 0;
  border-radius: 0 !important;
  font-size: 21px;
  font-weight: 400;
  letter-spacing: -0.06em;
}

.brand > .brand-labs,
.brand > div.brand-labs {
  height: 100%;
  min-height: 0;
  border-radius: 0 var(--radius-control) var(--radius-control) 0 !important;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.brand-labs-label {
  display: block;
  line-height: 1;
  transform: translateY(1px);
}

.menu-bar {
  position: static;
  inset: auto;
  display: block;
  width: auto;
  min-height: 0;
  margin: 0 0 0 auto;
  padding: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
  transform: none;
}

.menu-links {
  display: flex;
  align-items: stretch;
}

.menu-links a {
  display: inline-flex;
  flex: 0 0 auto;
  min-width: 0;
  min-height: var(--control-height);
  align-items: center;
  justify-content: center;
  padding: 8px 13px;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border);
  border-right: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
  transition: color var(--motion-fast), background var(--motion-fast), border-color var(--motion-fast);
}

.menu-links a:first-child {
  border-radius: var(--radius-control) 0 0 var(--radius-control) !important;
}

.menu-links a:last-child {
  border-right: 1px solid var(--border);
  border-radius: 0 var(--radius-control) var(--radius-control) 0 !important;
}

.menu-links a:hover,
.menu-links a:focus-visible,
.menu-links a.is-active,
.menu-links a[aria-current="page"] {
  color: var(--white);
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  outline: none;
}

.header-actions {
  display: none;
}

.menu-toggle {
  display: none;
  flex: 0 0 var(--control-height);
  width: var(--control-height);
  height: var(--control-height);
  min-width: var(--control-height);
  min-height: var(--control-height);
  align-items: center;
  justify-content: center;
  padding: 0;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-control) !important;
  cursor: pointer;
}

.menu-toggle:hover,
.menu-toggle:focus-visible,
.menu-toggle[aria-expanded="true"] {
  color: var(--white);
  background: var(--accent-dark);
  outline: none;
}

.menu-toggle .menu-ico {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  transition: transform var(--motion-fast);
}

.menu-toggle[aria-expanded="true"] .menu-ico {
  transform: rotate(90deg);
}

.mobile-nav-backdrop,
.mobile-nav-overlay {
  display: none;
}

@media (max-width: 991px) {
  html {
    scroll-padding-top: 94px;
  }

  .site-header {
    min-height: 76px;
    padding: 14px 20px;
  }

  .menu-bar,
  .menu-bar.is-open {
    display: none;
  }

  .header-actions {
    display: flex;
    margin-left: auto;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .mobile-nav-backdrop {
    position: fixed;
    z-index: 90;
    inset: 0;
    display: block;
    opacity: 0;
    pointer-events: none;
    background: var(--nav-backdrop);
    -webkit-backdrop-filter: blur(0) saturate(100%);
    backdrop-filter: blur(0) saturate(100%);
    transition: opacity var(--motion-menu), backdrop-filter var(--motion-menu);
  }

  .mobile-nav-backdrop.is-open {
    opacity: 1;
    pointer-events: auto;
    -webkit-backdrop-filter: blur(36px) saturate(115%);
    backdrop-filter: blur(36px) saturate(115%);
  }

  .mobile-nav-overlay {
    position: fixed;
    z-index: 100;
    inset: 0;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 16px clamp(28px, 5vw, 52px) 44px;
    opacity: 0;
    pointer-events: none;
    background: var(--nav-overlay);
    transform: translateY(8px);
    transition: opacity var(--motion-menu), transform var(--motion-menu);
    overscroll-behavior: contain;
  }

  .mobile-nav-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .mobile-nav-overlay[hidden],
  .mobile-nav-backdrop[hidden] {
    display: none;
  }

  .mobile-nav-overlay-head {
    display: flex;
    flex: 0 0 auto;
    min-height: 44px;
    justify-content: flex-end;
  }

  .mobile-nav-close {
    display: grid;
    width: 44px;
    height: 44px;
    place-items: center;
    padding: 0;
    color: var(--text);
    background: rgba(255, 255, 255, 0.24);
    border: 1px solid var(--border);
    border-radius: var(--radius-control) !important;
    cursor: pointer;
  }

  .mobile-nav-close:hover,
  .mobile-nav-close:focus-visible {
    color: var(--white);
    background: var(--accent-dark);
    outline: none;
  }

  .mobile-nav-close svg {
    width: 19px;
    height: 19px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-width: 1.8;
  }

  .mobile-nav-list {
    display: grid;
    width: min(100%, 540px);
    gap: 0;
    margin-top: 28px;
  }

  .mobile-nav-list a {
    display: flex;
    min-height: 68px;
    align-items: center;
    padding: 14px 18px;
    margin-bottom: -1px;
    color: var(--text);
    background: var(--nav-link-surface);
    border: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-decoration: none;
    text-transform: uppercase;
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 350ms ease, transform 350ms ease, background-color var(--motion-fast);
  }

  .mobile-nav-list a.is-visible {
    opacity: 1;
    transform: translateX(0);
  }

  .mobile-nav-list a:hover,
  .mobile-nav-list a:focus-visible,
  .mobile-nav-list a.is-active,
  .mobile-nav-list a[aria-current="page"],
  .mobile-nav-list a[aria-current="location"] {
    background: var(--nav-link-hover);
    outline: none;
  }

  body.mobile-nav-open {
    overflow: hidden;
  }

  .page-shell,
  .site-footer {
    transition: none;
  }

  body.mobile-nav-open .page-shell,
  body.mobile-nav-open .site-footer {
    transform: none;
  }
}

@media (max-width: 680px) {
  html {
    scroll-padding-top: 86px;
  }

  .site-header {
    min-height: var(--header-height-compact);
    gap: 12px;
    padding: 12px;
  }

  .brand {
    height: 36px;
  }

  .brand .brand-mark {
    flex-basis: 36px;
    width: 36px;
    font-size: 17px;
  }

  .brand .brand-name,
  .brand > .brand-labs,
  .brand > div.brand-labs {
    padding-right: 7px;
    padding-left: 7px;
  }

  .brand .brand-name {
    font-size: 18px;
  }

  .brand > .brand-labs,
  .brand > div.brand-labs {
    height: 100%;
    min-height: 0;
    font-size: 8px;
  }

  .header-actions {
    height: 36px;
  }

  .menu-toggle {
    flex-basis: 36px;
    width: 36px;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
  }

  .mobile-nav-overlay {
    padding: 12px 20px 32px;
  }

  .mobile-nav-list {
    width: 100%;
    margin-top: 24px;
  }

  .mobile-nav-list a {
    min-height: 60px;
    padding: 12px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sticky-top,
  .menu-links a,
  .menu-ico,
  .mobile-nav-backdrop,
  .mobile-nav-overlay,
  .mobile-nav-list a,
  .page-shell,
  .site-footer {
    transition: none;
  }
}

/* Shared footer structure. Both pages use the same markup and breakpoints. */
.site-footer {
  display: block;
  margin-top: 0;
  padding: clamp(28px, 4vw, 62px) clamp(20px, 4vw, 72px);
  color: var(--footer-text);
  background: var(--footer-background);
  border: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(190px, 1.1fr) repeat(3, minmax(0, 1fr));
  gap: 16px;
  width: min(100%, var(--site-max-width));
  margin: 0 auto;
}

.footer-copyright-group {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 250px;
  padding: 4px 0;
}

.footer-brand {
  color: var(--footer-text);
  font-family: var(--font-ui);
  font-size: clamp(38px, 4vw, 58px);
  font-weight: 300;
  line-height: 0.9;
  letter-spacing: -0.08em;
}

.footer-brand .chi {
  position: relative;
  top: -0.09em;
  font-style: italic;
}

.footer-copyright {
  max-width: 23ch;
  color: var(--footer-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.45;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.footer-panel {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 16px;
  min-height: 250px;
  padding: 20px;
  border: 1px solid var(--footer-line);
  border-radius: var(--radius-panel) !important;
}

.footer-panel-title {
  margin: 0;
  color: var(--footer-label);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-item-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-content: start;
  margin: 0 -1px -1px 0;
}

.footer-item-links a {
  display: grid;
  place-items: center;
  min-height: 52px;
  padding: 8px;
  margin: 0 -1px -1px 0;
  color: var(--footer-text);
  border: 1px solid var(--footer-line);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.25;
  letter-spacing: 0.03em;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  transition: color var(--motion-fast), background-color var(--motion-fast);
}

.footer-item-links a:hover,
.footer-item-links a:focus-visible,
.footer-item-links a.is-active,
.footer-item-links a[aria-current="page"],
.footer-item-links a[aria-current="location"] {
  color: var(--footer-hover-text);
  background: var(--footer-text);
  outline: none;
}

@media (max-width: 1080px) {
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-copyright-group {
    grid-column: 1 / -1;
    min-height: 100px;
  }
}

@media (max-width: 680px) {
  .site-footer {
    padding: 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .footer-copyright-group {
    grid-column: auto;
    flex-direction: row;
    gap: 22px;
    align-items: flex-end;
    min-height: 78px;
  }

  .footer-brand {
    font-size: 38px;
  }

  .footer-panel {
    min-height: 0;
    padding: 18px;
  }

  .footer-item-links a {
    min-height: 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .footer-item-links a {
    transition: none;
  }
}

/* Shared customer-support modal. Markup and behavior are identical on every page. */
body.support-modal-open {
  overflow: hidden;
}

#supportModal {
  position: fixed;
  z-index: 200;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(18px, 4vh, 48px) 20px;
  overflow-y: auto;
  background:
    radial-gradient(62% 78% at 11% 4%, rgba(116, 226, 152, 0.28), transparent 64%),
    radial-gradient(58% 82% at 92% 92%, rgba(75, 174, 218, 0.3), transparent 65%),
    rgba(6, 37, 30, 0.64);
  -webkit-backdrop-filter: blur(34px) saturate(125%);
  backdrop-filter: blur(34px) saturate(125%);
}

#supportModal[hidden] {
  display: none;
}

#supportModal .modal {
  display: flex;
  flex-direction: column;
  width: min(940px, 100%);
  max-height: min(760px, calc(100dvh - 36px));
  overflow: hidden;
  color: var(--text);
  background: linear-gradient(
    128deg,
    rgba(247, 255, 248, 0.96),
    rgba(224, 247, 234, 0.91)
  );
  border: 1px solid rgba(31, 74, 61, 0.76);
  border-radius: 18px !important;
  box-shadow:
    0 32px 100px rgba(0, 27, 21, 0.4),
    inset 0 1px rgba(255, 255, 255, 0.9);
}

#supportModal .window-titlebar {
  display: flex;
  flex: 0 0 auto;
  min-height: 78px;
  align-items: center;
  padding-left: clamp(26px, 4vw, 42px);
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.34), transparent);
  border-bottom: 1px solid var(--border);
}

#supportModal .window-titlebar > span {
  margin: 0;
  font-family: var(--font-ui);
  font-size: clamp(23px, 3vw, 34px);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.06em;
}

#supportModal .modal-close {
  display: grid;
  flex: 0 0 46px;
  width: 46px;
  height: 46px;
  place-items: center;
  margin-right: 11px;
  margin-left: auto;
  padding: 0;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 50% !important;
  box-shadow: none;
  cursor: pointer;
  transition:
    color var(--motion-fast),
    background-color var(--motion-fast),
    border-color var(--motion-fast),
    box-shadow var(--motion-fast);
}

#supportModal .close-ico {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
  transition: transform var(--motion-fast);
}

#supportModal .modal-close:hover,
#supportModal .modal-close:focus-visible {
  color: var(--footer-text);
  background: linear-gradient(145deg, #176553, #0a4438);
  border-color: #063b30;
  box-shadow:
    inset 0 1px rgba(255, 255, 255, 0.22),
    0 6px 14px rgba(5, 50, 40, 0.22);
  outline: none;
}

#supportModal .modal-close:hover .close-ico,
#supportModal .modal-close:focus-visible .close-ico {
  transform: rotate(90deg) scale(1.06);
}

#supportModal .modal-body {
  min-height: 0;
  overflow-y: auto;
  padding: clamp(28px, 4.6vw, 52px);
}

#supportModal .modal-intro-wrap {
  max-width: 63ch;
  margin-bottom: 34px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(31, 74, 61, 0.35);
}

#supportModal .section-kicker {
  margin: 0 0 8px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#supportModal .modal-intro {
  margin: 0;
  color: var(--text);
  font-size: 18px;
  line-height: 1.38;
  letter-spacing: -0.025em;
}

#supportModal .support-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(210px, 0.42fr);
  gap: 30px clamp(28px, 4.5vw, 54px);
}

#supportModal .support-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 19px;
}

#supportModal .form-field {
  min-width: 0;
  margin: 0;
}

#supportModal label {
  display: block;
  margin-bottom: 5px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

#supportModal label span {
  color: var(--muted);
  font-weight: 400;
  text-transform: none;
}

#supportModal input,
#supportModal textarea {
  box-sizing: border-box;
  width: 100%;
  padding: 11px 12px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(31, 74, 61, 0.58);
  border-radius: 6px !important;
  box-shadow: none;
  font: inherit;
}

#supportModal input {
  min-height: 44px;
}

#supportModal textarea {
  display: block;
  min-height: 142px;
  resize: vertical;
}

#supportModal input:focus,
#supportModal textarea:focus {
  border-color: var(--accent);
  outline: 2px solid rgba(29, 102, 93, 0.32);
  outline-offset: 1px;
}

#supportModal .support-concern-field {
  grid-column: 1 / -1;
}

#supportModal .error-text {
  min-height: 18px;
  margin: 6px 0 0;
  color: var(--danger);
  font-size: 12px;
}

#supportModal .support-guidance {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 28px;
  color: var(--footer-text);
  background:
    radial-gradient(110% 72% at 100% 0%, rgba(113, 227, 151, 0.26), transparent 58%),
    linear-gradient(154deg, #0d5849, #083e34);
  border: 1px solid rgba(216, 255, 226, 0.52);
  border-radius: 14px !important;
  box-shadow:
    inset 0 1px rgba(255, 255, 255, 0.18),
    0 18px 42px rgba(12, 61, 50, 0.18);
}

#supportModal .support-guidance h3 {
  margin: 0 0 10px;
  color: var(--footer-text);
  font-size: 22px;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.04em;
}

#supportModal .support-guidance p,
#supportModal .support-guidance li {
  color: #cdebd9;
  font-size: 13px;
  line-height: 1.42;
}

#supportModal .support-guidance p {
  margin: 0 0 16px;
}

#supportModal .support-guidance ul {
  margin: 0;
  padding-top: 14px;
  padding-left: 18px;
  border-top: 1px solid rgba(220, 255, 229, 0.25);
}

#supportModal .support-guidance li + li {
  margin-top: 6px;
}

#supportModal .support-form-footer,
#supportModal .sr-result {
  grid-column: 1 / -1;
}

#supportModal .support-form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 26px;
  border-top: 1px solid rgba(31, 74, 61, 0.4);
}

#supportModal .modal-disclaimer {
  max-width: 58ch;
  margin: 0;
  padding: 0;
  background: transparent;
  border: 0;
}

#supportModal .modal-disclaimer h3 {
  margin: 0 0 5px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

#supportModal .modal-disclaimer p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.42;
}

#supportModal .modal-actions {
  display: flex;
}

#supportModal .modal-submit {
  display: inline-flex;
  width: auto;
  min-width: 188px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 11px 17px;
  color: var(--white);
  background: var(--accent-dark);
  border: 1px solid var(--accent-dark);
  border-radius: var(--radius-control) !important;
  font-family: var(--font-control);
  font-size: var(--font-control-size);
  font-weight: var(--font-control-weight);
  line-height: 1.25;
  letter-spacing: 0;
  text-transform: none;
  cursor: pointer;
}

#supportModal .modal-submit:hover,
#supportModal .modal-submit:focus-visible {
  color: var(--white);
  background: var(--accent);
  outline: 2px solid rgba(29, 102, 93, 0.32);
  outline-offset: 2px;
}

#supportModal .modal-submit:disabled {
  cursor: default;
  opacity: 0.66;
}

#supportModal .sr-result {
  margin-top: 0;
  padding: 14px;
  background: rgba(224, 249, 231, 0.62);
  border: 1px solid var(--border-soft);
  border-radius: 8px !important;
}

#supportModal .sr-result[hidden] {
  display: none;
}

#supportModal .sr-result p {
  margin: 0 0 6px;
}

#supportModal .sr-result p:last-child {
  margin-bottom: 0;
}

#supportModal .help-text {
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 900px) {
  #supportModal .support-form {
    grid-template-columns: 1fr;
  }

  #supportModal .support-guidance {
    min-height: 0;
  }
}

@media (max-width: 680px) {
  #supportModal {
    align-items: flex-start;
    padding: 12px;
  }

  #supportModal .modal {
    max-height: calc(100dvh - 24px);
  }

  #supportModal .window-titlebar {
    min-height: 68px;
    padding-left: 22px;
  }

  #supportModal .modal-body {
    padding: 24px 20px;
  }

  #supportModal .modal-intro-wrap {
    margin-bottom: 26px;
    padding-bottom: 19px;
  }

  #supportModal .support-fields {
    grid-template-columns: 1fr;
  }

  #supportModal .support-concern-field {
    grid-column: auto;
  }

  #supportModal .support-guidance {
    padding: 22px;
  }

  #supportModal .support-form-footer {
    align-items: stretch;
    flex-direction: column;
  }

  #supportModal .modal-submit {
    width: 100%;
  }
}

/*
 * Canonical control interaction language.
 *
 * This block intentionally follows the page-specific component rules. It
 * gives every actionable control the same precise mint signal, dark edge,
 * restrained lift, pressed state, and keyboard-visible focus treatment.
 */
.button,
.copy-button,
.menu-toggle,
.mobile-nav-close,
#supportModal .modal-close,
#supportModal .modal-submit {
  -webkit-tap-highlight-color: transparent;
  transition:
    color var(--motion-control),
    background-color var(--motion-control),
    border-color var(--motion-control),
    box-shadow var(--motion-control),
    transform var(--motion-control);
}

.button:hover:not(:disabled):not([aria-disabled="true"]),
#support .button:hover:not(:disabled):not([aria-disabled="true"]),
.copy-button:hover:not(:disabled),
.menu-toggle:hover:not(:disabled),
.mobile-nav-close:hover:not(:disabled),
#supportModal .modal-close:hover:not(:disabled),
#supportModal .modal-submit:hover:not(:disabled),
.button:focus-visible:not(:disabled):not([aria-disabled="true"]),
#support .button:focus-visible:not(:disabled):not([aria-disabled="true"]),
.copy-button:focus-visible:not(:disabled),
.menu-toggle:focus-visible:not(:disabled),
.mobile-nav-close:focus-visible:not(:disabled),
#supportModal .modal-close:focus-visible:not(:disabled),
#supportModal .modal-submit:focus-visible:not(:disabled) {
  color: var(--control-interaction-ink) !important;
  background: var(--control-hover-surface);
  border-color: var(--control-interaction-border);
  box-shadow: var(--control-hover-shadow);
}

.button:hover:not(:disabled):not([aria-disabled="true"]),
#support .button:hover:not(:disabled):not([aria-disabled="true"]),
.copy-button:hover:not(:disabled),
.menu-toggle:hover:not(:disabled),
.mobile-nav-close:hover:not(:disabled),
#supportModal .modal-close:hover:not(:disabled),
#supportModal .modal-submit:hover:not(:disabled) {
  outline: none;
  transform: translateY(-1px);
}

.button:focus-visible:not(:disabled):not([aria-disabled="true"]),
#support .button:focus-visible:not(:disabled):not([aria-disabled="true"]),
.copy-button:focus-visible:not(:disabled),
.menu-toggle:focus-visible:not(:disabled),
.mobile-nav-close:focus-visible:not(:disabled),
#supportModal .modal-close:focus-visible:not(:disabled),
#supportModal .modal-submit:focus-visible:not(:disabled),
.button[aria-disabled="true"]:focus-visible {
  outline: 2px solid var(--control-focus-ring);
  outline-offset: 3px;
}

.button:active:not(:disabled):not([aria-disabled="true"]),
#support .button:active:not(:disabled):not([aria-disabled="true"]),
.copy-button:active:not(:disabled),
.menu-toggle:active:not(:disabled),
.mobile-nav-close:active:not(:disabled),
#supportModal .modal-close:active:not(:disabled),
#supportModal .modal-submit:active:not(:disabled) {
  color: var(--control-interaction-ink) !important;
  background: var(--control-active-surface);
  border-color: var(--control-interaction-border);
  box-shadow: var(--control-active-shadow);
  transform: translateY(1px);
}

.button:disabled,
.button[aria-disabled="true"],
.copy-button:disabled,
#supportModal .modal-submit:disabled {
  transform: none;
}

#supportModal .modal-close:hover .close-ico,
#supportModal .modal-close:focus-visible .close-ico {
  transform: scale(1.04);
}

#supportModal .modal-close:active .close-ico {
  transform: scale(0.94);
}

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

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

  .button,
  .copy-button,
  .menu-toggle,
  .mobile-nav-close,
  #supportModal .modal-close,
  #supportModal .modal-submit,
  #supportModal .close-ico {
    transition: none;
  }

  .button:hover:not(:disabled):not([aria-disabled="true"]),
  #support .button:hover:not(:disabled):not([aria-disabled="true"]),
  .copy-button:hover:not(:disabled),
  .menu-toggle:hover:not(:disabled),
  .mobile-nav-close:hover:not(:disabled),
  #supportModal .modal-close:hover:not(:disabled),
  #supportModal .modal-submit:hover:not(:disabled),
  .button:active:not(:disabled):not([aria-disabled="true"]),
  #support .button:active:not(:disabled):not([aria-disabled="true"]),
  .copy-button:active:not(:disabled),
  .menu-toggle:active:not(:disabled),
  .mobile-nav-close:active:not(:disabled),
  #supportModal .modal-close:active:not(:disabled),
  #supportModal .modal-submit:active:not(:disabled),
  #supportModal .modal-close:hover .close-ico,
  #supportModal .modal-close:focus-visible .close-ico,
  #supportModal .modal-close:active .close-ico {
    transform: none;
  }
}