/* ==========================================================================
   KAIYUN 竞技蓝图 — 全站共享样式
   File: /assets/site.css
   ========================================================================== */

/* ---------- 1. CSS Variables ---------- */
:root {
  --bg-deep: #0B0F1A;
  --bg-dark: #131A2A;
  --bg-indigo: #1E2A4A;
  --bg-wine: #4A1F2D;
  --bg-teal: #153D3A;
  --accent-green: #C8F560;
  --accent-purple: #9B6CFF;
  --text-main: #EAEEF5;
  --text-secondary: #B4C0D0;
  --line: rgba(255, 255, 255, 0.16);
  --line-green: rgba(200, 245, 96, 0.35);
  --line-purple: rgba(155, 108, 255, 0.35);
  --grid-line: rgba(255, 255, 255, 0.07);

  --font-head: "Space Grotesk", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-data: "JetBrains Mono", "SFMono-Regular", "SF Mono", Consolas, "Liberation Mono", monospace;

  --container: 1200px;
  --header-h: 72px;
  --header-h-mobile: 56px;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 56px;
  --space-6: 96px;

  --ease: 0.25s ease;
  --ease-fast: 0.15s ease;
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--bg-deep);
  -webkit-font-smoothing: antialiased;
  padding-top: var(--header-h);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 0.5em;
  color: var(--text-main);
  text-rendering: optimizeLegibility;
}

p {
  margin: 0 0 1em;
}

a {
  color: var(--accent-purple);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color var(--ease-fast);
}

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

ul, ol {
  margin: 0 0 1em;
  padding-left: 1.5em;
}

li {
  margin-bottom: 0.25em;
}

img,
svg,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
}

::selection {
  background: var(--accent-green);
  color: var(--bg-deep);
}

/* ---------- 3. Typography Helpers ---------- */
.mono {
  font-family: var(--font-data);
  font-feature-settings: "tnum" 1;
  letter-spacing: 0.02em;
}

.text-secondary {
  color: var(--text-secondary);
}

/* ---------- 4. Layout Utilities ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.container--narrow {
  max-width: 860px;
}

.section {
  padding: clamp(48px, 8vw, 112px) 0;
}

.section--dark {
  background: var(--bg-dark);
}

.section--indigo {
  background: var(--bg-indigo);
}

.section--teal {
  background: var(--bg-teal);
}

.section--wine {
  background: var(--bg-wine);
}

/* ---------- 5. Grid System ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.grid__col-3 {
  grid-column: span 3;
}

.grid__col-4 {
  grid-column: span 4;
}

.grid__col-5 {
  grid-column: span 5;
}

.grid__col-6 {
  grid-column: span 6;
}

.grid__col-7 {
  grid-column: span 7;
}

.grid__col-8 {
  grid-column: span 8;
}

.grid__col-9 {
  grid-column: span 9;
}

.grid__col-12 {
  grid-column: span 12;
}

@media (max-width: 960px) {
  .grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
  }

  .grid__col-3,
  .grid__col-4,
  .grid__col-6 {
    grid-column: span 3;
  }

  .grid__col-5,
  .grid__col-7,
  .grid__col-8,
  .grid__col-9 {
    grid-column: span 6;
  }
}

@media (max-width: 640px) {
  .grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
  }

  .grid__col-3,
  .grid__col-4,
  .grid__col-5,
  .grid__col-6,
  .grid__col-7,
  .grid__col-8,
  .grid__col-9 {
    grid-column: span 4;
  }
}

/* ---------- 6. Section Head ---------- */
.section-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--line);
}

.section-head__index {
  font-family: var(--font-data);
  font-size: 14px;
  color: var(--accent-purple);
  letter-spacing: 0.06em;
}

.section-head__index::before {
  content: "[";
}

.section-head__index::after {
  content: "]";
}

.section-head__title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 900;
  letter-spacing: 0.02em;
  margin: 0;
  line-height: 1.2;
}

.section-head__desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-left: auto;
  max-width: 320px;
  text-align: right;
}

/* ---------- 7. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  color: var(--text-main);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 0;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--ease-fast), border-color var(--ease-fast), color var(--ease-fast);
}

.btn:hover {
  color: var(--accent-green);
  border-color: var(--accent-green);
}

.btn--primary {
  background: var(--accent-green);
  border-color: var(--accent-green);
  color: var(--bg-deep);
}

.btn--primary:hover {
  background: var(--bg-deep);
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.btn--ghost {
  border-color: var(--accent-purple);
  color: var(--accent-purple);
  background: transparent;
}

.btn--ghost:hover {
  background: var(--accent-purple);
  border-color: var(--accent-purple);
  color: var(--bg-deep);
}

.btn--sm {
  padding: 8px 16px;
  font-size: 13px;
}

/* ---------- 8. Tags ---------- */
.tag {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border: 1px solid var(--line);
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.03);
  white-space: nowrap;
}

.tag--green {
  color: var(--accent-green);
  border-color: var(--line-green);
  background: rgba(200, 245, 96, 0.08);
}

.tag--purple {
  color: var(--accent-purple);
  border-color: var(--line-purple);
  background: rgba(155, 108, 255, 0.08);
}

.tag--wine {
  color: #D494A8;
  border-color: rgba(212, 148, 168, 0.3);
  background: rgba(74, 31, 45, 0.3);
}

/* ---------- 9. Frame Panel ---------- */
.frame-panel {
  position: relative;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  padding: clamp(20px, 3vw, 40px);
}

.frame-panel::before,
.frame-panel::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border-color: var(--accent-purple);
  border-style: solid;
  pointer-events: none;
}

.frame-panel::before {
  top: -2px;
  left: -2px;
  border-width: 2px 0 0 2px;
}

.frame-panel::after {
  right: -2px;
  bottom: -2px;
  border-width: 0 2px 2px 0;
}

.frame-panel--green::before,
.frame-panel--green::after {
  border-color: var(--accent-green);
}

/* ---------- 10. Blueprint Grid ---------- */
.blueprint-grid {
  position: relative;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 32px 32px;
}

.blueprint-grid--fine {
  background-size: 8px 8px;
}

/* ---------- 11. Index Label ---------- */
.index-label {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  border: 1px solid var(--line);
  padding: 3px 8px;
  background: rgba(255, 255, 255, 0.03);
  white-space: nowrap;
}

.index-label::before {
  content: "#";
  color: var(--accent-purple);
}

/* ---------- 12. Data Plaque ---------- */
.data-plaque {
  background: var(--bg-indigo);
  border-left: 3px solid var(--accent-purple);
  padding: 16px 20px;
  margin: 0;
}

.data-plaque__label {
  display: block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--accent-purple);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.data-plaque__body {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0;
}

.data-plaque--teal {
  background: var(--bg-teal);
  border-left-color: var(--accent-green);
}

.data-plaque--teal .data-plaque__label {
  color: var(--accent-green);
}

/* ---------- 13. Breadcrumb ---------- */
.breadcrumb {
  font-family: var(--font-data);
  font-size: 13px;
  margin: 0 0 var(--space-3);
}

.breadcrumb__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  margin: 0;
}

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin: 0 8px;
  color: var(--text-secondary);
  opacity: 0.6;
}

.breadcrumb__link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--ease-fast);
}

.breadcrumb__link:hover {
  color: var(--accent-green);
}

.breadcrumb__item[aria-current="page"] {
  color: var(--accent-green);
}

/* ---------- 14. Table ---------- */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 640px;
}

.table th,
.table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.table th {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--accent-purple);
  background: var(--bg-indigo);
  font-weight: 700;
}

.table td {
  color: var(--text-main);
}

.table th:first-child,
.table td:first-child {
  padding-left: 20px;
}

.table th:last-child,
.table td:last-child {
  padding-right: 20px;
}

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

.table tbody tr:hover td {
  background: rgba(255, 255, 255, 0.04);
}

/* ---------- 15. Media Frame ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-indigo);
  aspect-ratio: 16 / 9;
}

.media-frame--wide {
  aspect-ratio: 21 / 9;
}

.media-frame--portrait {
  aspect-ratio: 4 / 5;
}

.media-frame--square {
  aspect-ratio: 1 / 1;
}

.media-frame__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 24px 24px;
}

.media-frame__placeholder::before {
  content: attr(data-label);
  border: 1px solid var(--line);
  padding: 6px 12px;
  background: var(--bg-deep);
  color: var(--accent-purple);
}

/* ---------- 16. Info Note ---------- */
.info-note {
  background: var(--bg-wine);
  border-left: 3px solid #D494A8;
  padding: 16px 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-main);
}

.info-note::before {
  content: "注意";
  display: block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: #D494A8;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.info-note--notice::before {
  content: "声明";
}

.info-note--impt::before {
  content: "重要";
}

/* ---------- 17. Section Cut ---------- */
.section-cut {
  position: relative;
  height: 1px;
  background: var(--line);
  margin: var(--space-5) 0;
  border: none;
  overflow: visible;
}

.section-cut::after {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: min(240px, 40%);
  height: 3px;
  background: linear-gradient(90deg, var(--accent-purple), transparent);
  transform: skewX(-8deg);
  transform-origin: left center;
}

.section-cut--green::after {
  background: linear-gradient(90deg, var(--accent-green), transparent);
}

/* ---------- 18. Card ---------- */
.card {
  background: var(--bg-dark);
  border: 1px solid var(--line);
  padding: var(--space-3);
  transition: border-color var(--ease-fast), background-color var(--ease-fast), box-shadow var(--ease-fast);
}

.card:hover {
  border-color: var(--line-purple);
  background: var(--bg-indigo);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.card--teal {
  background: var(--bg-teal);
}

.card--indigo {
  background: var(--bg-indigo);
}

/* ---------- 19. Skip Link ---------- */
.skip-link {
  position: fixed;
  top: -100%;
  left: 16px;
  z-index: 9999;
  padding: 10px 16px;
  background: var(--accent-green);
  color: var(--bg-deep);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transition: top var(--ease);
}

.skip-link:focus {
  top: 16px;
}

/* ---------- 20. Main Content ---------- */
#main-content {
  outline: none;
}

/* ---------- 21. Site Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.site-header.is-scrolled {
  background: rgba(19, 26, 42, 0.92);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--line);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 16px;
  height: var(--header-h);
  position: relative;
}

/* ---------- 22. Brand ---------- */
.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  white-space: nowrap;
  padding: 4px 0;
  flex-shrink: 0;
}

.site-brand:hover {
  color: inherit;
}

.site-brand__mark {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  background: var(--bg-teal);
  border: 1px solid var(--accent-green);
  color: var(--accent-green);
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.02em;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  flex-shrink: 0;
}

.site-brand__text {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.01em;
  color: var(--text-main);
  line-height: 1.2;
}

.site-brand__sub {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--accent-purple);
  border: 1px solid var(--line);
  padding: 2px 6px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  white-space: nowrap;
}

/* ---------- 23. Site Navigation ---------- */
.site-nav {
  display: flex;
  align-items: center;
}

.site-nav__list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
}

.site-nav__item {
  margin: 0;
}

.site-nav__link {
  display: block;
  padding: 8px 12px;
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
  line-height: 1.2;
  border: 1px solid transparent;
  transition: color var(--ease-fast), border-color var(--ease-fast), background-color var(--ease-fast);
}

.site-nav__link:hover {
  color: var(--accent-green);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.site-nav__link[aria-current="page"] {
  color: var(--accent-green);
  background: rgba(200, 245, 96, 0.08);
  border-color: var(--line-green);
}

/* ---------- 24. Header Utility ---------- */
.site-header__utility {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.site-header__utility-link {
  padding: 8px 14px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-secondary);
  text-decoration: none;
  border: 1px solid var(--line);
  transition: color var(--ease-fast), border-color var(--ease-fast), background-color var(--ease-fast);
  white-space: nowrap;
}

.site-header__utility-link:hover {
  color: var(--accent-green);
  border-color: var(--accent-green);
}

.site-header__utility-link--accent {
  color: var(--accent-purple);
  border-color: var(--accent-purple);
}

.site-header__utility-link--accent:hover {
  color: var(--bg-deep);
  background: var(--accent-purple);
  border-color: var(--accent-purple);
}

/* ---------- 25. Nav Toggle ---------- */
.nav-toggle {
  display: none;
  margin-left: auto;
  padding: 0;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: border-color var(--ease-fast), background-color var(--ease-fast);
  flex-shrink: 0;
}

.nav-toggle:hover {
  border-color: var(--accent-purple);
  background: rgba(155, 108, 255, 0.08);
}

.nav-toggle__line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-main);
  transition: transform var(--ease), opacity var(--ease), background-color var(--ease-fast);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line--top {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line--mid {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line--bottom {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 26. Header & Nav Responsive ---------- */
@media (max-width: 1040px) {
  .site-header__utility {
    display: none;
  }
}

@media (max-width: 960px) {
  body {
    padding-top: var(--header-h-mobile);
  }

  .site-header__inner {
    height: var(--header-h-mobile);
  }

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

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.35);
    padding: 16px 24px 24px;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--ease), opacity var(--ease), visibility var(--ease);
  }

  .site-nav[data-open] {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .site-nav__link {
    padding: 12px 16px;
    font-size: 16px;
    border-left: 3px solid transparent;
  }

  .site-nav__link[aria-current="page"] {
    border-left-color: var(--accent-green);
  }
}

/* ---------- 27. Site Footer ---------- */
.site-footer {
  background: var(--bg-dark);
  border-top: 1px solid var(--line);
  padding: clamp(48px, 8vw, 80px) 0 0;
  margin-top: var(--space-6);
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 48px;
  padding-bottom: var(--space-4);
}

.site-footer__brand-block .site-brand {
  margin-bottom: var(--space-2);
}

.site-footer__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 360px;
  margin: 0;
}

.site-footer__columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.site-footer__column-title {
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-purple);
  text-transform: uppercase;
  margin: 0 0 14px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
}

.site-footer__link-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer__link-list li {
  margin-bottom: 2px;
}

.site-footer__link {
  display: inline-block;
  padding: 4px 0;
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--ease-fast), padding-left var(--ease-fast);
}

.site-footer__link:hover {
  color: var(--accent-green);
  padding-left: 4px;
}

.site-footer__contact {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.site-footer__contact-item {
  font-family: var(--font-data);
  font-size: 13px;
}

.site-footer__contact-item::before {
  content: "▹";
  color: var(--accent-purple);
  margin-right: 6px;
}

.site-footer__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 24px;
  padding: var(--space-3) 0;
  font-size: 13px;
  color: var(--text-secondary);
}

.site-footer__copyright {
  font-family: var(--font-data);
  font-size: 13px;
}

.site-footer__icp {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--text-secondary);
  border: 1px solid var(--line);
  padding: 2px 8px;
}

.site-footer__note {
  font-size: 12px;
  color: var(--text-secondary);
  flex-basis: 100%;
  margin: 0;
}

/* ---------- 28. Footer Responsive ---------- */
@media (max-width: 960px) {
  .site-footer__top {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .site-footer__columns {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
}

@media (max-width: 640px) {
  .site-footer__columns {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer__column:last-child {
    grid-column: 1 / -1;
  }

  .site-footer__contact {
    flex-direction: column;
    gap: 8px;
  }

  .site-footer__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* ---------- 29. Focus Visible ---------- */
:focus-visible {
  outline: 2px solid var(--accent-green);
  outline-offset: 2px;
}

.skip-link:focus-visible {
  outline: 2px solid var(--bg-deep);
  outline-offset: 2px;
}

/* ---------- 30. Reduced Motion ---------- */
@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;
    transition-delay: 0ms !important;
  }
}