/* =========================================================
   必赢BWIN · Site Kit — /assets/site.css
   技术蓝图 / 数据流竞技场 / 珠宝色分区 / 命令栏导航
   ========================================================= */

/* ---------- 0. Design Tokens ---------- */
:root {
  --c-bg: #05101F;
  --c-bg-alt: #0B1B2B;
  --c-acid: #B7FF00;
  --c-violet: #8A2BE2;
  --c-teal: #0F4C5C;
  --c-wine: #722F37;
  --c-indigo: #4B0082;
  --c-text: #E6EDF3;
  --c-muted: #A8B3BD;
  --c-line: #1C2E3A;
  --c-line-bright: rgba(183, 255, 0, 0.35);

  --font-display: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: "JetBrains Mono", "SF Mono", Consolas, monospace;
  --font-serif: Georgia, "Times New Roman", serif;

  --container-w: 1280px;
  --header-h: 64px;
  --radius: 2px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 0.2s;
  --dur-med: 0.3s;
}

/* ---------- 1. Reset & Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 12px);
  scrollbar-color: var(--c-line) var(--c-bg);
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--c-bg);
  background-image:
    linear-gradient(to right, rgba(28, 46, 58, 0.4) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(28, 46, 58, 0.4) 1px, transparent 1px);
  background-size: 40px 40px;
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.5em;
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: var(--c-text);
}

p {
  margin: 0 0 1em;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: var(--c-acid);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--dur-fast) var(--ease-out);
}

a:hover {
  color: var(--c-text);
}

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
}

::selection {
  background: var(--c-acid);
  color: #05101F;
}

:focus-visible {
  outline: 2px solid var(--c-acid);
  outline-offset: 2px;
  border-radius: var(--radius);
}

[id="main-content"] {
  scroll-margin-top: var(--header-h);
}

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

/* ---------- 2. Layout Utilities ---------- */
.container {
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 40px);
}

.section {
  padding-block: clamp(56px, 8vw, 112px);
}

.section--tint {
  background: var(--c-bg-alt);
  border-block: 1px solid var(--c-line);
}

.section--teal {
  background: var(--c-teal);
  border-block: 1px solid rgba(255, 255, 255, 0.08);
}

.section--wine {
  background: var(--c-wine);
  border-block: 1px solid rgba(255, 255, 255, 0.08);
}

.section--indigo {
  background: var(--c-indigo);
  border-block: 1px solid rgba(255, 255, 255, 0.08);
}

.section__head {
  margin-bottom: 36px;
}

.grid {
  display: grid;
  gap: 20px;
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

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

@media (max-width: 900px) {
  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 620px) {
  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }
}

/* ---------- 3. Typography & Labels ---------- */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-acid);
}

.kicker::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--c-acid);
}

.display-title {
  font-size: clamp(38px, 7vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  font-weight: 900;
  color: var(--c-text);
}

.display-title em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
  color: var(--c-acid);
}

.data-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.num {
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  color: var(--c-acid);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-muted);
  border: 1px solid var(--c-line);
  background: rgba(11, 27, 43, 0.6);
}

/* ---------- 4. Buttons & Breadcrumb ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid var(--c-line);
  background: transparent;
  color: var(--c-text);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: var(--radius);
  transition:
    background-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}

.btn:hover {
  border-color: var(--c-violet);
  color: var(--c-text);
  box-shadow: inset 0 -2px 0 var(--c-violet);
}

.btn--primary {
  background: var(--c-acid);
  border-color: var(--c-acid);
  color: #05101F;
  font-weight: 900;
}

.btn--primary:hover {
  background: #9EDB00;
  border-color: #9EDB00;
  color: #05101F;
  box-shadow: 0 4px 20px rgba(183, 255, 0, 0.25);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin: 0 0 20px;
  padding: 0;
  font-size: 13px;
  color: var(--c-muted);
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li + li::before {
  content: "◇";
  color: var(--c-line-bright);
  font-size: 10px;
}

.breadcrumb a {
  color: var(--c-muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--c-acid);
}

.breadcrumb [aria-current="page"] {
  color: var(--c-text);
}

/* ---------- 5. Panels & Cards ---------- */
.panel {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-line);
  padding: clamp(24px, 4vw, 40px);
  border-radius: var(--radius);
}

.panel--glow {
  box-shadow: 0 0 0 1px var(--c-line), 0 20px 60px rgba(0, 0, 0, 0.3);
}

.card {
  display: block;
  background: var(--c-bg-alt);
  border: 1px solid var(--c-line);
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--radius);
  transition:
    border-color var(--dur-med) var(--ease-out),
    box-shadow var(--dur-med) var(--ease-out),
    transform var(--dur-med) var(--ease-out);
}

.card:hover {
  border-color: rgba(183, 255, 0, 0.5);
  box-shadow:
    0 0 0 1px rgba(183, 255, 0, 0.15),
    0 16px 40px rgba(0, 0, 0, 0.35);
  transform: translateY(-2px);
}

/* ---------- 6. Media Frames ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--c-bg-alt);
  border: 1px solid var(--c-line);
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--ratio-16-9 {
  aspect-ratio: 16 / 9;
}

.media-frame--ratio-4-3 {
  aspect-ratio: 4 / 3;
}

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

.media-frame__grid-overlay::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(183, 255, 0, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(183, 255, 0, 0.08) 1px, transparent 1px);
  background-size: 16px 16px;
  pointer-events: none;
  mix-blend-mode: screen;
}

.media-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-muted);
  background: repeating-linear-gradient(
    135deg,
    var(--c-bg-alt) 0 10px,
    #071222 10px 20px
  );
}

/* ---------- 7. Data Table ---------- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  color: var(--c-muted);
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--c-line);
  text-align: left;
  font-variant-numeric: tabular-nums;
}

.data-table th {
  color: var(--c-acid);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.data-table tbody tr {
  cursor: pointer;
  transition: background-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}

.data-table tbody tr:hover {
  background: rgba(138, 43, 226, 0.08);
}

.data-table tbody tr.is-active {
  background: rgba(183, 255, 0, 0.1);
  box-shadow: inset 3px 0 0 var(--c-acid);
  color: var(--c-text);
}

/* ---------- 8. Skip Link & Scroll Progress ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  padding: 10px 18px;
  background: var(--c-acid);
  color: #05101F;
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-radius: var(--radius);
  transform: translateY(-220%);
  transition: transform var(--dur-fast) var(--ease-out);
}

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

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 950;
  width: 100%;
  height: 3px;
  pointer-events: none;
  background: transparent;
}

.scroll-progress__bar {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--c-acid) 0%, var(--c-violet) 100%);
  box-shadow: 0 0 10px rgba(183, 255, 0, 0.5);
}

/* ---------- 9. Header Command Bar ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 16, 31, 0.95);
  border-bottom: 1px solid var(--c-line);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--c-acid) 0%, var(--c-violet) 30%, var(--c-line) 80%);
  opacity: 0.4;
  pointer-events: none;
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: var(--header-h);
  max-width: var(--container-w);
  margin-inline: auto;
  padding: 0 clamp(16px, 4vw, 40px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
  text-decoration: none;
  color: var(--c-text);
  flex-shrink: 0;
}

.brand:hover {
  color: var(--c-text);
}

.brand__mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.brand__mark-bg {
  fill: var(--c-bg-alt);
  stroke: var(--c-line);
}

.brand__mark-stem {
  fill: var(--c-acid);
}

.brand__mark-arc {
  fill: none;
  stroke: var(--c-violet);
  stroke-width: 3;
  stroke-linecap: round;
}

.brand__mark-bar {
  fill: var(--c-acid);
  opacity: 0.7;
}

.brand__mark-bar--violet {
  fill: var(--c-violet);
}

.brand__text {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
}

.brand__text-cn {
  font-size: 17px;
  letter-spacing: 0.06em;
}

.brand__text-latin {
  font-size: 17px;
  color: var(--c-acid);
  letter-spacing: 0.02em;
}

.site-header__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 5px 12px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  background: rgba(11, 27, 43, 0.6);
  white-space: nowrap;
  flex-shrink: 0;
}

.site-header__status-text {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--c-muted);
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-acid);
  animation: live-pulse 1s ease-in-out infinite;
}

@keyframes live-pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(183, 255, 0, 0.5);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(183, 255, 0, 0);
  }
}

/* ---------- 10. Main Navigation ---------- */
.nav-toggle {
  display: none;
}

.site-nav {
  margin-left: auto;
}

.site-nav__label,
.site-nav__meta {
  display: none;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.site-nav__item {
  margin: 0;
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-muted);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition:
    color var(--dur-fast) var(--ease-out),
    background-color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out);
}

.site-nav__link:hover {
  color: var(--c-text);
  border-color: var(--c-line);
  background: rgba(183, 255, 0, 0.05);
}

.site-nav__link:active {
  background: rgba(138, 43, 226, 0.12);
}

.site-nav__link[aria-current="page"] {
  color: var(--c-text);
  border-color: rgba(183, 255, 0, 0.35);
  background: linear-gradient(
    180deg,
    rgba(183, 255, 0, 0.1),
    rgba(138, 43, 226, 0.06)
  );
  box-shadow: inset 0 -2px 0 var(--c-acid);
}

.site-nav__link[aria-current="page"] .site-nav__index {
  color: var(--c-acid);
}

.site-nav__index {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--c-violet);
}

.site-nav__link:hover .site-nav__index {
  color: var(--c-acid);
}

.site-nav__text {
  display: inline;
  line-height: 1;
}

/* ---------- 11. Header Responsive ---------- */
@media (max-width: 1023px) and (min-width: 768px) {
  .site-header__status {
    display: none;
  }

  .site-header__inner {
    gap: 12px;
  }

  .site-nav__link {
    padding: 8px 6px;
    font-size: 12px;
  }

  .brand__text-cn,
  .brand__text-latin {
    font-size: 15px;
  }
}

@media (max-width: 767px) {
  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    width: 40px;
    height: 40px;
    padding: 8px;
    border: 1px solid var(--c-line);
    border-radius: var(--radius);
    cursor: pointer;
    flex-shrink: 0;
    transition: border-color var(--dur-fast) var(--ease-out);
  }

  .nav-toggle:hover {
    border-color: var(--c-acid);
  }

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

  .nav-toggle__label {
    font-size: 9px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-muted);
    line-height: 1;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .brand {
    gap: 8px;
  }

  .brand__mark {
    width: 30px;
    height: 30px;
  }

  .brand__text-cn,
  .brand__text-latin {
    font-size: 15px;
  }

  .site-header__status {
    margin-left: auto;
  }

  .site-nav {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 90;
    display: flex;
    flex-direction: column;
    width: min(340px, 86vw);
    padding: calc(var(--header-h) + 24px) 24px 24px;
    background: var(--c-bg-alt);
    border-right: 1px solid var(--c-line);
    box-shadow: 16px 0 50px rgba(0, 0, 0, 0.45);
    visibility: hidden;
    transform: translateX(-105%);
    transition:
      transform var(--dur-fast) var(--ease-out),
      visibility 0s linear var(--dur-fast);
    overflow-y: auto;
    margin-left: 0;
  }

  .site-nav[data-open] {
    visibility: visible;
    transform: translateX(0);
    transition: transform var(--dur-fast) var(--ease-out);
  }

  .site-nav__label {
    display: block;
    margin: 0;
    padding-bottom: 12px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--c-acid);
    border-bottom: 1px solid var(--c-line);
  }

  .site-nav__meta {
    display: block;
    margin: auto 0 0;
    padding-top: 20px;
    font-size: 11px;
    letter-spacing: 0.14em;
    color: rgba(183, 255, 0, 0.35);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-top: 12px;
  }

  .site-nav__link {
    justify-content: flex-start;
    padding: 14px 10px;
    font-size: 15px;
    border: none;
    border-bottom: 1px solid rgba(28, 46, 58, 0.6);
    border-radius: 0;
  }

  .site-nav__link:hover {
    border-color: transparent;
    border-bottom-color: rgba(28, 46, 58, 0.6);
  }

  .site-nav__link[aria-current="page"] {
    border-bottom: 1px solid rgba(28, 46, 58, 0.6);
    background: linear-gradient(
      90deg,
      rgba(183, 255, 0, 0.12),
      rgba(138, 43, 226, 0.06)
    );
    box-shadow: inset 3px 0 0 var(--c-acid);
  }
}

body.is-nav-open::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 85;
  background: rgba(5, 16, 31, 0.55);
  backdrop-filter: blur(2px);
  pointer-events: auto;
}

@media (max-width: 560px) {
  .site-header__status-text {
    display: none;
  }

  .site-header__status {
    gap: 0;
    padding: 4px;
    border-radius: 50%;
  }
}

/* ---------- 12. Footer ---------- */
.site-footer {
  position: relative;
  margin-top: auto;
  background-color: var(--c-bg-alt);
  background-image:
    linear-gradient(to right, rgba(28, 46, 58, 0.25) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(28, 46, 58, 0.25) 1px, transparent 1px);
  background-size: 40px 40px;
  border-top: 1px solid var(--c-line);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--c-acid) 0%,
    var(--c-violet) 45%,
    var(--c-indigo) 75%,
    transparent 100%
  );
  opacity: 0.85;
  pointer-events: none;
}

.site-footer__inner {
  max-width: var(--container-w);
  margin-inline: auto;
  padding: clamp(32px, 5vw, 64px) clamp(16px, 4vw, 40px) 24px;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--c-line);
}

.site-footer p {
  margin: 0;
}

.site-footer__brand,
.site-footer__nav,
.site-footer__contact {
  display: grid;
  align-content: start;
  gap: 10px;
}

.site-footer__brandname {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--c-text);
}

.site-footer__mark {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.site-footer__tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 15px;
  color: var(--c-muted);
}

.site-footer__heading {
  margin: 0 0 4px;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-acid);
}

.site-footer__link-list {
  display: grid;
  gap: 6px;
}

.site-footer__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 3px 0;
  font-size: 14px;
  color: var(--c-muted);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}

.site-footer__link::before {
  content: "↳";
  font-size: 12px;
  color: var(--c-violet);
  transition: color var(--dur-fast) var(--ease-out);
}

.site-footer__link:hover {
  color: var(--c-text);
}

.site-footer__link:hover::before {
  color: var(--c-acid);
}

.site-footer__contact-line {
  font-size: 14px;
  color: var(--c-muted);
  font-variant-numeric: tabular-nums;
}

.site-footer__contact-line::before {
  content: "》";
  margin-right: 8px;
  font-size: 10px;
  color: var(--c-violet);
}

.site-footer__trust {
  position: relative;
  margin: 24px 0;
  padding: 16px 20px 16px 24px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
  background: rgba(183, 255, 0, 0.04);
  border-left: 2px solid var(--c-acid);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 24px;
  padding-top: 20px;
  border-top: 1px solid var(--c-line);
  font-size: 12px;
  color: var(--c-muted);
}

.site-footer__copyright,
.site-footer__icp {
  margin: 0;
}

.site-footer__code {
  margin: 0 0 0 auto;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(183, 255, 0, 0.35);
}

@media (max-width: 860px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .site-footer__code {
    margin-left: 0;
  }
}

/* ---------- 13. Scroll Reveal Protocol ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition-property: opacity, transform;
  transition-duration: var(--dur-med);
  transition-timing-function: var(--ease-out);
  will-change: opacity, transform;
}

[data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* ---------- 14. 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;
  }

  .live-dot {
    animation: none;
    box-shadow: none;
  }

  .scroll-progress__bar {
    box-shadow: none;
  }

  [data-reveal],
  [data-reveal].is-revealed {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .site-nav,
  .nav-toggle__bar {
    transition: none;
  }
}