/* ==========================================================================
   完美体育官方网站中文站 — /assets/site.css
   深空蓝体育数据终端设计语言 · 共享样式
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  min-height: 100vh;
  background-color: var(--bg-primary);
  background-image:
    linear-gradient(rgba(176, 196, 222, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(176, 196, 222, 0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

ul,
ol {
  list-style: none;
}

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

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

a {
  color: var(--accent-orange);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

p {
  color: var(--text-secondary);
  line-height: 1.7;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-headings);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  text-rendering: optimizeLegibility;
}

strong,
b {
  color: var(--text-primary);
  font-weight: 700;
}

/* ---------- 2. CSS Variables ---------- */
:root {
  --bg-primary: #0B1D3A;
  --bg-card: #101A2E;
  --bg-panel: #1B2A4A;
  --bg-grid: #0A1628;
  --accent-orange: #FF6B35;
  --accent-green: #39FF14;
  --accent-error: #FF4D4F;
  --border-color: #2E4A7A;
  --text-primary: #FFFFFF;
  --text-secondary: #B0C4DE;
  --font-headings: Impact, 'Arial Black', sans-serif;
  --font-body: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --font-numbers: 'Roboto Mono', 'Courier New', monospace;
  --header-height: 68px;
  --container-max: 1280px;
  --radius: 10px;
}

/* ---------- 3. Base ---------- */
main {
  display: block;
}

#main-content {
  display: block;
  outline: none;
  scroll-margin-top: calc(var(--header-height) + 20px);
}

[data-section] {
  scroll-margin-top: calc(var(--header-height) + 20px);
}

:focus-visible {
  outline: 3px solid var(--accent-green);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- 4. Utilities ---------- */
.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;
}

.container {
  width: min(100% - 48px, var(--container-max));
  margin-inline: auto;
}

.txt-orange {
  color: var(--accent-orange);
}

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

.data-grid-bg {
  background-image:
    linear-gradient(rgba(176, 196, 222, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(176, 196, 222, 0.045) 1px, transparent 1px);
  background-size: 28px 28px;
}

/* ---------- 5. Skip Link ---------- */
.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 2000;
  padding: 12px 20px;
  background: var(--accent-orange);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  border-radius: 0 0 8px 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  transition: top 0.2s ease;
}

.skip-link:focus-visible {
  top: 0;
}

/* ---------- 6. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-primary);
  border-bottom: 1px solid rgba(46, 74, 122, 0.55);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.22);
}

.progress-track {
  height: 3px;
  background: var(--bg-grid);
  overflow: hidden;
}

.progress-bar {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-orange), var(--accent-green));
  transition: width 0.1s linear;
}

.header-shell {
  width: min(100% - 48px, var(--container-max));
  margin-inline: auto;
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex: 0 0 auto;
}

.brand-mark {
  position: relative;
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-headings);
  font-size: 1.4rem;
  line-height: 1;
  color: #fff;
  background: linear-gradient(135deg, var(--accent-orange) 0%, #d9510f 100%);
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
}

.brand-mark::after {
  content: '';
  position: absolute;
  right: 7px;
  bottom: 6px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 8px rgba(57, 255, 20, 0.8);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.2;
}

.brand-name {
  font-family: var(--font-headings);
  font-size: 1.18rem;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  white-space: nowrap;
}

.brand-sub {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  position: relative;
  padding: 8px 14px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.site-nav a::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 0;
  height: 2px;
  background: var(--accent-green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.site-nav a:hover {
  color: var(--text-primary);
}

.site-nav a:hover::after {
  transform: scaleX(1);
}

.site-nav a[aria-current="page"],
.site-nav a.is-section-current {
  color: var(--text-primary);
  font-weight: 700;
}

.site-nav a[aria-current="page"]::after,
.site-nav a.is-section-current::after {
  transform: scaleX(1);
  background: var(--accent-orange);
}

.btn-header {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  padding: 8px 20px;
  border-radius: 30px;
  font-size: 0.86rem;
  font-weight: 700;
  text-decoration: none;
  color: #fff;
  background: var(--accent-orange);
  white-space: nowrap;
  box-shadow: 0 2px 10px rgba(255, 107, 53, 0.35);
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.btn-header:hover {
  background: #ff8550;
  color: #fff;
  box-shadow: 0 4px 16px rgba(255, 107, 53, 0.5);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  transition: border-color 0.2s ease;
}

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

.nav-toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease, background 0.25s ease;
}

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

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

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background: var(--accent-orange);
}

/* ---------- 7. Footer ---------- */
.site-footer {
  position: relative;
  margin-top: 72px;
  padding-top: 48px;
  background: var(--bg-grid);
  border-top: 1px solid var(--border-color);
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg,
      var(--accent-orange) 0%,
      var(--accent-orange) 28%,
      var(--border-color) 28%,
      var(--border-color) 72%,
      var(--accent-green) 72%,
      var(--accent-green) 100%);
  opacity: 0.9;
}

.footer-shell {
  width: min(100% - 48px, var(--container-max));
  margin-inline: auto;
}

.footer-grid {
  display: grid;
  gap: 32px;
}

.footer-brand-col,
.footer-col {
  min-width: 0;
}

.footer-brand {
  font-family: var(--font-headings);
  font-size: 1.35rem;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.footer-claim {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

.footer-feedback-line {
  color: var(--accent-orange);
  font-size: 0.86rem;
  line-height: 1.55;
  padding-left: 14px;
  border-left: 3px solid var(--accent-orange);
}

.footer-col-heading {
  font-family: var(--font-headings);
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-primary);
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.footer-col-heading::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 32px;
  height: 2px;
  background: var(--accent-orange);
}

.footer-nav-list {
  display: grid;
  gap: 8px;
}

.footer-nav-list a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s ease;
}

.footer-nav-list a:hover {
  color: var(--accent-green);
}

.footer-contact-list {
  display: grid;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.55;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 40px;
  padding-block: 20px;
  border-top: 1px solid rgba(46, 74, 122, 0.6);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.footer-slogan {
  font-family: var(--font-headings);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent-green);
}

.back-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 900;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--accent-orange);
  border-radius: 50%;
  color: var(--accent-orange);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
}

.back-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-top:hover {
  background: var(--accent-orange);
  color: #fff;
}

.back-top-icon {
  display: inline-block;
  font-size: 1.25rem;
  line-height: 1;
}

/* ---------- 8. Common Components ---------- */
.section {
  padding-block: 56px;
}

.section-head {
  max-width: 640px;
  margin-bottom: 32px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border: 2px solid transparent;
  border-radius: 30px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  color: #fff;
  background: var(--accent-orange);
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  background: #ff8550;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(255, 107, 53, 0.35);
}

.btn[data-variant="ghost"] {
  background: transparent;
  border-color: var(--border-color);
  color: var(--text-secondary);
}

.btn[data-variant="ghost"]:hover {
  border-color: var(--accent-green);
  color: var(--text-primary);
  box-shadow: none;
  transform: none;
  background: rgba(57, 255, 20, 0.04);
}

.btn[data-variant="neutral"] {
  background: var(--bg-panel);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn[data-variant="neutral"]:hover {
  border-color: var(--accent-orange);
  box-shadow: none;
  transform: none;
}

.btn[data-size="lg"] {
  padding: 14px 32px;
  font-size: 1rem;
}

.btn[data-size="sm"] {
  padding: 6px 14px;
  font-size: 0.8rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px 24px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-orange);
}

.metric-card[data-accent="green"]::before {
  background: var(--accent-green);
}

.metric-card[data-tilt="left"] {
  transform: rotate(-2deg);
}

.metric-card[data-tilt="right"] {
  transform: rotate(1.5deg);
}

.metric-card:hover {
  border-color: var(--accent-green);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.metric-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.metric-value {
  font-family: var(--font-numbers);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 6px;
  line-height: 1.1;
}

.metric-unit {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-left: 4px;
}

.tilt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.chart-grid {
  background-image:
    linear-gradient(rgba(176, 196, 222, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(176, 196, 222, 0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  background-color: var(--bg-grid);
}

.timeline {
  position: relative;
  padding-left: 28px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-green), var(--border-color));
}

.timeline-item {
  position: relative;
  margin-bottom: 24px;
  padding: 18px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 20px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 0 4px rgba(57, 255, 20, 0.12);
}

.timeline-item[data-stage="current"]::before {
  background: var(--accent-orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.2);
}

.data-list {
  display: grid;
  gap: 12px;
}

.data-list-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.92rem;
}

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

.data-list-value {
  font-family: var(--font-numbers);
  font-weight: 600;
  color: var(--text-primary);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
}

.tag[data-status="live"] {
  color: var(--accent-green);
  border-color: rgba(57, 255, 20, 0.4);
  background: rgba(57, 255, 20, 0.06);
}

.tag[data-status="live"]::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-green);
  animation: live-pulse 1.6s ease-in-out infinite;
}

.tag[data-status="hot"] {
  color: var(--accent-orange);
  border-color: rgba(255, 107, 53, 0.4);
  background: rgba(255, 107, 53, 0.06);
}

.live-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-green);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.live-tag::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 8px rgba(57, 255, 20, 0.8);
  animation: live-pulse 1.6s ease-in-out infinite;
}

@keyframes live-pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.45;
    transform: scale(0.72);
  }
}

.media {
  position: relative;
  overflow: hidden;
  background: var(--bg-panel);
  aspect-ratio: 16 / 9;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
}

.media[data-ratio="4/3"] {
  aspect-ratio: 4 / 3;
}

.media[data-ratio="1/1"] {
  aspect-ratio: 1 / 1;
}

.media[data-ratio="21/9"] {
  aspect-ratio: 21 / 9;
}

.media img,
.media picture,
.media svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero {
  position: relative;
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(180deg, rgba(27, 42, 74, 0.45), transparent);
}

.page-hero::after {
  content: '';
  position: absolute;
  right: 8%;
  top: 30%;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(57, 255, 20, 0.06), transparent 62%);
  pointer-events: none;
}

.page-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}

.page-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 46ch;
  line-height: 1.6;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 16px 0;
  font-size: 0.85rem;
}

.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumb a:hover {
  color: var(--accent-orange);
}

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

.breadcrumb-sep {
  color: var(--border-color);
}

.layout-doc {
  display: grid;
  gap: 40px;
}

.doc-rail {
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
}

.hero-index {
  min-height: calc(100vh - var(--header-height) - 3px);
  display: grid;
  align-items: center;
  padding-block: 40px;
  position: relative;
  overflow: hidden;
}

.hero-index::after {
  content: '';
  position: absolute;
  right: -120px;
  top: 10%;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.08), transparent 65%);
  pointer-events: none;
}

.hero-index-grid {
  display: grid;
  gap: 32px;
  width: 100%;
}

.hero-index-title {
  font-family: var(--font-headings);
  font-size: clamp(2.4rem, 8vw, 4.6rem);
  line-height: 0.94;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 18px;
}

[data-reveal] {
  opacity: 1;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

/* ---------- 9. Responsive ---------- */
@media (min-width: 992px) {
  .brand-link {
    padding-right: 20px;
    margin-right: 4px;
    border-right: 1px solid rgba(46, 74, 122, 0.5);
  }

  .layout-doc {
    grid-template-columns: 260px 1fr;
    align-items: start;
  }

  .doc-rail {
    position: sticky;
    top: calc(var(--header-height) + 28px);
    max-height: calc(100vh - var(--header-height) - 48px);
    overflow: auto;
  }

  .hero-index-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: center;
  }
}

@media (min-width: 992px) and (max-width: 1199px) {
  .site-nav a {
    padding: 8px 9px;
    font-size: 0.85rem;
  }

  .site-nav a::after {
    left: 9px;
    right: 9px;
  }

  .header-shell {
    gap: 10px;
  }
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1100px) {
  .footer-grid {
    grid-template-columns: 1.3fr 0.8fr 0.8fr 1.1fr;
  }
}

@media (max-width: 991px) {
  .nav-toggle {
    display: inline-flex;
    margin-left: 10px;
  }

  .btn-header {
    margin-left: auto;
    padding: 7px 14px;
    font-size: 0.78rem;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg-card);
    border-bottom: 3px solid var(--accent-orange);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
  }

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

  .site-nav a {
    display: flex;
    align-items: center;
    padding: 13px 24px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    border-left: 3px solid transparent;
  }

  .site-nav a::after {
    display: none;
  }

  .site-nav a:hover {
    background: rgba(57, 255, 20, 0.04);
    color: var(--text-primary);
    border-left-color: var(--accent-green);
  }

  .site-nav a[aria-current="page"],
  .site-nav a.is-section-current {
    color: var(--text-primary);
    border-left-color: var(--accent-orange);
    background: rgba(255, 107, 53, 0.06);
  }
}

@media (max-width: 479px) {
  .brand-copy {
    display: none;
  }

  .brand-link {
    gap: 0;
  }
}

/* ---------- 10. Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
  }

  html {
    scroll-behavior: auto;
  }

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