/* ==========================================================
   BSPORTAPP Site Kit / assets/site.css
   Brand DNA: side-rail track navigation, poster layering,
   brutalist details, deep-space blue + fluorescent green.
   ========================================================== */

/* ---------- 1. Variables ---------- */
:root {
  --bg-deep: #0A0E1A;
  --bg-panel: #141B2D;
  --bg-track: #070A12;
  --accent-green: #00FF88;
  --accent-orange: #FF6A00;
  --text-silver: #B0B8C9;
  --text-light: #E6EBF5;
  --data-blue: #2D6BFF;
  --green-veil: rgba(0, 255, 136, 0.15);
  --font-head: 'Archivo Black', 'Impact', sans-serif;
  --font-body: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --rail-width: 272px;
  --header-h: 64px;
  --radius: 4px;
  --shadow-strong: 0 10px 30px rgba(0, 0, 0, 0.45);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-deep);
  color: var(--text-silver);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  word-break: break-word;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  display: block;
  flex: 1;
  min-height: 70vh;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd {
  margin: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.25;
  color: var(--text-light);
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
}

h3 {
  font-size: clamp(1.2rem, 2vw, 1.8rem);
}

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

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

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

button {
  background: none;
  border: none;
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ---------- 3. Typography utilities ---------- */
.display-title {
  font-family: var(--font-body);
  font-weight: 200;
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--text-light);
}

.kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-green);
  margin-bottom: 12px;
}

/* ---------- 4. Layout utilities ---------- */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container--wide {
  max-width: 1280px;
}

.container--narrow {
  max-width: 720px;
}

.section {
  padding-top: 64px;
  padding-bottom: 64px;
}

.section--tight {
  padding-top: 32px;
  padding-bottom: 32px;
}

.grid {
  display: grid;
  gap: 24px;
}

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

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

.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

.diagonal-cut {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 32px), calc(100% - 32px) 100%, 0 100%);
}

.divider {
  display: block;
  height: 1px;
  border: none;
  background: linear-gradient(90deg, rgba(0, 255, 136, 0.5), rgba(45, 107, 255, 0.2), transparent);
  margin: 32px 0;
}

/* ---------- 5. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border: 2px solid var(--accent-green);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.15s var(--ease);
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background: var(--accent-green);
  color: var(--bg-deep);
  box-shadow: 0 0 16px rgba(0, 255, 136, 0.18);
}

.btn--primary:hover {
  background: transparent;
  color: var(--accent-green);
  box-shadow: none;
}

.btn--ghost {
  background: transparent;
  color: var(--text-light);
  border-color: rgba(176, 184, 201, 0.4);
}

.btn--ghost:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
  background: rgba(0, 255, 136, 0.05);
}

.btn--sm {
  padding: 8px 16px;
  font-size: 0.75rem;
}

.btn--block {
  display: flex;
  width: 100%;
}

.btn__arrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 1.1em;
  line-height: 1;
  transition: transform 0.2s var(--ease);
}

.btn:hover .btn__arrow {
  transform: translateX(4px);
}

/* ---------- 6. Shared components ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.breadcrumb__link {
  color: var(--text-silver);
  padding: 4px 0;
  transition: color 0.2s;
}

.breadcrumb__link + .breadcrumb__link::before {
  content: '/';
  margin: 0 10px;
  color: var(--accent-green);
}

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

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

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid rgba(0, 255, 136, 0.4);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-green);
}

.pill--orange {
  border-color: rgba(255, 106, 0, 0.55);
  color: var(--accent-orange);
}

.card {
  background: var(--bg-panel);
  border: 1px solid rgba(0, 255, 136, 0.15);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), background-color 0.25s var(--ease);
}

.card--hover:hover {
  border-color: var(--accent-green);
  background: rgba(0, 255, 136, 0.04);
  box-shadow: var(--shadow-strong);
}

.img-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(45, 107, 255, 0.08), rgba(0, 255, 136, 0.05)),
    var(--bg-panel);
  border: 1px solid rgba(176, 184, 201, 0.18);
  border-radius: var(--radius);
}

.img-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 55%, rgba(0, 255, 136, 0.05) 55%, rgba(0, 255, 136, 0.05) 58%, transparent 58%);
  pointer-events: none;
}

.img-frame--hero {
  min-height: 340px;
}

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

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

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

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.data-table th {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 2px solid var(--accent-green);
  color: var(--text-light);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(176, 184, 201, 0.15);
}

.data-table tbody tr {
  transition: background-color 0.15s;
}

.data-table tbody tr:hover {
  background: rgba(0, 255, 136, 0.06);
}

/* ---------- 7. Skip link ---------- */
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 300;
  background: var(--accent-green);
  color: var(--bg-deep);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 10px 18px;
  border-radius: var(--radius);
  transform: translateY(-220%);
  transition: transform 0.2s var(--ease);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.5);
}

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

/* ---------- 8. Site header (side rail) ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail-width);
  display: flex;
  flex-direction: column;
  padding: 24px 20px 16px;
  background:
    linear-gradient(rgba(0, 255, 136, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 136, 0.028) 1px, transparent 1px),
    var(--bg-track);
  background-size: 24px 24px;
  border-right: 1px solid rgba(0, 255, 136, 0.18);
  z-index: 200;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 255, 136, 0.25) transparent;
}

.site-header::-webkit-scrollbar {
  width: 4px;
}

.site-header::-webkit-scrollbar-thumb {
  background: rgba(0, 255, 136, 0.25);
  border-radius: 999px;
}

.site-header__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding-bottom: 4px;
}

.site-brand {
  display: inline-grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  align-items: center;
  column-gap: 10px;
  row-gap: 2px;
  text-decoration: none;
}

.site-brand__mark {
  grid-row: 1 / span 2;
  grid-column: 1;
  width: 14px;
  height: 14px;
  background: var(--accent-green);
  transform: rotate(45deg);
  border-radius: 2px;
  box-shadow: 0 0 10px rgba(0, 255, 136, 0.55);
  flex-shrink: 0;
}

.site-brand__word {
  grid-row: 1;
  grid-column: 2;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.15rem;
  line-height: 1.2;
  letter-spacing: 0.04em;
  color: var(--text-light);
  white-space: nowrap;
}

.site-brand__word-accent {
  color: var(--accent-green);
}

.site-brand__region {
  grid-row: 2;
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(0, 255, 136, 0.7);
  line-height: 1;
}

/* Nav toggle */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid rgba(0, 255, 136, 0.4);
  border-radius: var(--radius);
  background: rgba(0, 255, 136, 0.05);
}

.nav-toggle__box {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--accent-green);
  border-radius: 1px;
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle__label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  color: var(--accent-green);
  text-transform: uppercase;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) 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(-7px) rotate(-45deg);
}

/* Side nav */
.site-nav {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  margin-top: 40px;
}

.site-nav__heading {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(176, 184, 201, 0.5);
  margin-bottom: 14px;
  padding-left: 8px;
}

.site-nav__list {
  position: relative;
}

.site-nav__list::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(to bottom, rgba(0, 255, 136, 0.45), rgba(45, 107, 255, 0.3), rgba(0, 255, 136, 0.15));
}

.site-nav__item {
  position: relative;
}

.site-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 42px;
  padding: 8px 12px 8px 40px;
  color: var(--text-silver);
  text-decoration: none;
  transition: color 0.2s, background-color 0.2s;
}

.site-nav__link:hover {
  color: var(--text-light);
  background: rgba(0, 255, 136, 0.06);
}

.site-nav__node {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid rgba(0, 255, 136, 0.6);
  background: var(--bg-track);
  transition: background-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.site-nav__index {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  line-height: 1;
  color: rgba(176, 184, 201, 0.5);
  transition: color 0.2s;
  min-width: 20px;
}

.site-nav__label {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.site-nav__link[aria-current="page"] {
  color: var(--accent-green);
  background: rgba(0, 255, 136, 0.07);
}

.site-nav__link[aria-current="page"] .site-nav__node {
  background: var(--accent-green);
  box-shadow: 0 0 10px rgba(0, 255, 136, 0.6);
  transform: translateY(-50%) scale(1.15);
}

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

.site-nav__footer {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid rgba(176, 184, 201, 0.12);
}

.site-nav__hint {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.15em;
  text-align: center;
  color: rgba(176, 184, 201, 0.45);
}

/* Header status */
.site-header__status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding: 12px 14px;
  border: 1px solid rgba(0, 255, 136, 0.2);
  border-radius: var(--radius);
  background: rgba(0, 255, 136, 0.04);
}

.site-header__status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 6px rgba(0, 255, 136, 0.7);
  animation: status-pulse 2.2s ease-in-out infinite;
  flex-shrink: 0;
}

.site-header__status-text {
  font-size: 0.75rem;
  color: var(--text-silver);
  letter-spacing: 0.04em;
}

.site-header__status-ver {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--accent-orange);
}

@keyframes status-pulse {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 4px rgba(0, 255, 136, 0.6);
  }
  50% {
    opacity: 0.55;
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.95);
  }
}

/* Scroll progress rail */
.rail-progress {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 3px;
  background: rgba(176, 184, 201, 0.08);
  z-index: 10;
  pointer-events: none;
}

.rail-progress__fill {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: var(--accent-green);
  transform: scaleY(0);
  transform-origin: top center;
  box-shadow: 0 0 8px rgba(0, 255, 136, 0.5);
}

/* ---------- 9. Site footer ---------- */
.site-footer {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(rgba(0, 255, 136, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 136, 0.022) 1px, transparent 1px),
    var(--bg-track);
  background-size: 40px 40px;
  border-top: 1px solid rgba(0, 255, 136, 0.25);
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  z-index: 1;
  background: linear-gradient(90deg,
    var(--accent-green) 0%,
    var(--accent-green) 22%,
    transparent 22%,
    transparent 42%,
    var(--accent-orange) 42%,
    var(--accent-orange) 48%,
    transparent 48%,
    transparent 100%
  );
}

.site-footer::after {
  content: 'BS·APP';
  position: absolute;
  right: 12px;
  bottom: 48px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(5rem, 12vw, 9rem);
  line-height: 1;
  color: rgba(230, 235, 245, 0.025);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

.site-footer__grid,
.site-footer__bottom {
  position: relative;
  z-index: 1;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.6fr;
  gap: 48px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 64px 40px 48px;
}

.site-footer__brand .site-brand {
  margin-bottom: 20px;
}

.site-brand--footer .site-brand__word {
  font-size: 1.35rem;
}

.site-footer__trust {
  border-left: 3px solid var(--accent-green);
  padding-left: 16px;
  font-size: 0.8125rem;
  line-height: 1.9;
  color: rgba(176, 184, 201, 0.72);
  max-width: 34em;
}

.site-footer__heading {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 20px;
}

.site-footer__index {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--accent-green);
}

.site-footer__links {
  display: grid;
  gap: 8px;
}

.site-footer__links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-silver);
  transition: color 0.2s;
}

.site-footer__links a::before {
  content: '›';
  font-family: var(--font-mono);
  color: var(--accent-green);
  transition: transform 0.2s var(--ease);
}

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

.site-footer__links a:hover::before {
  transform: translateX(3px);
}

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

.site-footer__meta {
  display: grid;
  gap: 14px;
}

.site-footer__meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.site-footer__label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-orange);
}

.site-footer__value {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--text-silver);
}

.site-footer__note {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid rgba(176, 184, 201, 0.12);
  font-size: 0.75rem;
  line-height: 1.7;
  color: rgba(176, 184, 201, 0.6);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 20px 40px;
  border-top: 1px solid rgba(176, 184, 201, 0.1);
  background: rgba(0, 0, 0, 0.28);
}

.site-footer__copyright {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: rgba(176, 184, 201, 0.65);
}

.site-footer__icp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgba(176, 184, 201, 0.65);
}

.site-footer__badge {
  display: inline-block;
  background: var(--accent-orange);
  color: var(--bg-deep);
  font-weight: 700;
  font-size: 0.625rem;
  padding: 2px 6px;
  border-radius: 2px;
  letter-spacing: 0.08em;
}

/* ---------- 10. Responsive ---------- */
@media (min-width: 1025px) {
  body {
    padding-left: var(--rail-width);
  }
}

@media (max-width: 1024px) {
  body {
    padding-top: var(--header-h);
  }

  .site-header {
    top: 0;
    left: 0;
    right: 0;
    bottom: auto;
    width: auto;
    height: var(--header-h);
    flex-direction: row;
    align-items: center;
    padding: 0 16px;
    border-right: none;
    border-bottom: 1px solid rgba(0, 255, 136, 0.2);
    overflow: visible;
  }

  .site-header__top {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .site-brand__mark {
    width: 12px;
    height: 12px;
  }

  .site-brand__word {
    font-size: 1rem;
  }

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

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    bottom: 0;
    width: min(320px, 85vw);
    margin-top: 0;
    padding: 28px 24px 24px;
    background:
      linear-gradient(rgba(0, 255, 136, 0.025) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0, 255, 136, 0.025) 1px, transparent 1px),
      var(--bg-track);
    background-size: 24px 24px;
    border-right: 1px solid rgba(0, 255, 136, 0.2);
    box-shadow: 6px 0 28px rgba(0, 0, 0, 0.5);
    transform: translateX(-100%);
    visibility: hidden;
    transition: transform 0.35s var(--ease), visibility 0.35s;
    z-index: 210;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 255, 136, 0.25) transparent;
  }

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

  .site-header__status {
    display: none;
  }

  .rail-progress {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: auto;
    height: 3px;
  }

  .rail-progress__fill {
    top: 0;
    left: 0;
    bottom: 0;
    right: auto;
    width: 100%;
    height: 100%;
    transform: scaleX(0);
    transform-origin: left center;
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    padding: 48px 24px 32px;
  }

  .site-footer__brand {
    grid-column: 1 / -1;
  }

  .site-footer__bottom {
    padding-left: 24px;
    padding-right: 24px;
  }
}

@media (max-width: 640px) {
  .container,
  .container--wide,
  .container--narrow {
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-top: 40px;
  }

  .site-footer__brand {
    grid-column: auto;
  }

  .site-brand__region {
    display: none;
  }

  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .grid--2,
  .site-footer__grid {
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .nav-toggle__label {
    display: none;
  }
}

/* Short viewport rail compression */
@media (min-width: 1025px) and (max-height: 640px) {
  .site-header {
    padding-top: 14px;
    padding-bottom: 12px;
  }

  .site-nav {
    margin-top: 16px;
  }

  .site-nav__heading {
    margin-bottom: 6px;
  }

  .site-nav__link {
    min-height: 34px;
    padding-top: 4px;
    padding-bottom: 4px;
  }

  .site-nav__footer {
    padding-top: 8px;
  }

  .site-header__status {
    display: none;
  }
}

/* ---------- 11. Focus & reduced motion ---------- */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-green);
  outline-offset: 2px;
  border-radius: 2px;
}

.site-nav__link:focus-visible {
  background: rgba(0, 255, 136, 0.1);
  outline-offset: -2px;
}

@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;
  }

  .site-header__status-dot {
    animation: none;
  }
}