/* ============================================================
   米兰体育在线 · 共享样式表 /assets/site.css
   目录型内容地图 · 球场数据实验室
   ============================================================ */

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

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

body, h1, h2, h3, h4, h5, p, ul, ol, li, figure, blockquote, dl, dd, fieldset { margin: 0; }

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

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

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

button { background: none; border: 0; cursor: pointer; }

table { border-collapse: collapse; width: 100%; }

/* ---------- 2. Design tokens ---------- */
:root {
  --cream: #F7F3EA;
  --ink: #17130F;
  --paper: #FFFDF8;
  --milan: #C8102E;
  --ember: #E4572E;
  --blue: #1F6FEB;
  --lime: #6FD96A;
  --amber: #F2B441;
  --gray: #6B6259;
  --line: #D9D0C0;
  --panel: #2A241F;

  --font-title: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --shell: 1240px;
  --gutter: clamp(18px, 4.2vw, 60px);
  --header-h: 86px;
  --radius: 18px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --ease: cubic-bezier(.22, .68, .36, 1);
}

/* ---------- 3. Base typography ---------- */
body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 400;
  color: var(--ink);
  background-color: var(--cream);
  background-image:
    radial-gradient(circle at 10% -8%, rgba(200, 16, 46, .055), transparent 42%),
    radial-gradient(circle at 94% 3%, rgba(31, 111, 235, .05), transparent 46%);
  background-repeat: no-repeat;
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-title);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.24;
  text-wrap: balance;
}

h1 { font-size: clamp(30px, 4vw, 52px); font-weight: 900; }
h2 { font-size: clamp(22px, 2.6vw, 30px); }
h3 { font-size: clamp(17px, 1.6vw, 19px); }

p { max-width: 68ch; }

strong { font-weight: 800; }

::selection { background: var(--milan); color: var(--cream); }

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

/* ---------- 4. Utility helpers ---------- */
.wrap {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: clamp(48px, 7vw, 104px);
}

.section--tight { padding-block: clamp(30px, 4vw, 56px); }

.prose {
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink);
}

.prose p + p { margin-top: 1em; }

.prose a,
.link {
  color: var(--milan);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color .18s var(--ease);
}

.prose a:hover,
.link:hover { color: var(--ember); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gray);
}

.sec-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--milan);
}

.sec-title { margin-top: 8px; }

.sec-head { margin-bottom: clamp(20px, 3vw, 34px); }

.pitch-line {
  position: relative;
  height: 1px;
  margin-block: clamp(34px, 6vw, 72px);
  background: var(--line);
}

.pitch-line::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 11px;
  height: 11px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--cream);
  transform: translate(-50%, -50%);
}

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

/* ---------- 5. Grid ---------- */
.grid {
  display: grid;
  gap: clamp(16px, 2.2vw, 28px);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--5-7 { grid-template-columns: 5fr 7fr; }
.grid--4-8 { grid-template-columns: 4fr 8fr; }

/* ---------- 6. Buttons & links ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--milan);
  background: var(--milan);
  color: #FFF4F0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}

.btn:hover {
  background: var(--ember);
  border-color: var(--ember);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.btn--ghost:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--cream);
}

.btn--accent {
  background: var(--ember);
  border-color: var(--ember);
  color: #1B0F08;
}

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

/* ---------- 7. Index strip & breadcrumbs ---------- */
.index-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  padding-block: 14px;
  border-block: 1px solid var(--line);
}

.index-strip a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding-bottom: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gray);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.index-strip a:hover { color: var(--ink); }

.index-strip a[aria-current="location"] {
  color: var(--milan);
  border-bottom-color: var(--milan);
}

.crumbs {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gray);
}

.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

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

.crumbs li + li::before {
  content: "/";
  color: var(--line);
}

.crumbs a { color: var(--gray); text-decoration: none; }
.crumbs a:hover { color: var(--milan); }
.crumbs [aria-current="page"] { color: var(--ink); }

/* ---------- 8. Panels, stats, terms, details ---------- */
.panel {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}

.panel:hover { border-color: #C9BEAA; }

.panel--dark {
  background: var(--panel);
  border-color: var(--panel);
  color: #EDE6DA;
}

.panel--dark .eyebrow,
.panel--dark .stat-label { color: #9C9183; }

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gray);
}

.stat--up .stat-value { color: var(--lime); }
.stat--warn .stat-value { color: var(--amber); }
.stat--brand .stat-value { color: var(--milan); }

.term {
  display: grid;
  grid-template-columns: minmax(76px, auto) 1fr;
  gap: 6px 18px;
  padding-block: 12px;
  border-bottom: 1px dashed var(--line);
  font-size: 14.5px;
}

.term dt,
.term-term {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--milan);
  padding-top: 3px;
}

.term dd { margin: 0; color: var(--ink); }

.more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 3px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.more::after { content: "→"; color: var(--milan); }
.more:hover { color: var(--milan); border-bottom-color: var(--milan); }

details.panel { padding: 0; overflow: hidden; }

details.panel > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px clamp(18px, 2.4vw, 28px);
  cursor: pointer;
  font-weight: 700;
  font-size: 16px;
  list-style: none;
}

details.panel > summary::-webkit-details-marker { display: none; }

details.panel > summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--milan);
  transition: transform .18s var(--ease);
}

details.panel[open] > summary::after { content: "−"; }

details.panel .panel-body {
  padding: 0 clamp(18px, 2.4vw, 28px) clamp(18px, 2.4vw, 24px);
  animation: panelOpen .18s var(--ease) both;
}

@keyframes panelOpen {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 9. Matrix ---------- */
.matrix {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(84px, 1fr));
  gap: 6px;
}

.matrix-cell {
  position: relative;
  padding: 12px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  text-align: center;
  cursor: default;
  transition: background-color .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}

.matrix-cell:hover,
.matrix-cell:focus-visible {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--cream);
}

.matrix-cell .cell-value {
  display: block;
  margin-top: 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--milan);
}

.matrix-cell:hover .cell-value,
.matrix-cell:focus-visible .cell-value { color: var(--lime); }

/* ---------- 10. Media placeholders ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(155deg, #EFE7D8 0%, #FFFDF8 58%, #F3EADB 100%);
}

.media::after {
  content: "";
  position: absolute;
  right: -34%;
  bottom: -58%;
  width: 88%;
  aspect-ratio: 1;
  border: 1px solid rgba(23, 19, 15, .12);
  border-radius: 50%;
  pointer-events: none;
}

.media img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media--wide { aspect-ratio: 21 / 9; }
.media--square { aspect-ratio: 1 / 1; }
.media--portrait { aspect-ratio: 3 / 4; }

.media__cap {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gray);
}

/* ---------- 11. Skip link ---------- */
.skip-link {
  position: fixed;
  top: 0;
  left: var(--gutter);
  z-index: 999;
  transform: translateY(-140%);
  padding: 11px 20px;
  border-radius: 0 0 12px 12px;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-decoration: none;
  transition: transform .2s var(--ease);
}

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

/* ---------- 12. Site header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: var(--cream);
  border-bottom: 1px solid var(--line);
  transition: background-color .3s var(--ease), border-color .3s var(--ease);
}

.scroll-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 3;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--milan) 0%, var(--ember) 70%, var(--amber) 100%);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 20px;
  width: 100%;
  max-width: var(--shell);
  min-height: var(--header-h);
  margin-inline: auto;
  padding-inline: var(--gutter);
  transition: min-height .3s var(--ease);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  flex: none;
}

.brand-mark {
  width: 36px;
  height: 36px;
  flex: none;
  color: var(--milan);
  transition: color .2s var(--ease);
}

.brand:hover .brand-mark { color: var(--ember); }

.brand-text { display: block; }

.brand-name {
  display: block;
  font-family: var(--font-title);
  font-size: 19px;
  font-weight: 900;
  letter-spacing: .01em;
  line-height: 1.2;
  color: var(--ink);
  transition: color .3s var(--ease);
}

.brand-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gray);
  transition: color .3s var(--ease);
}

.header-current {
  display: none;
  align-items: center;
  gap: 9px;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cream);
}

.header-current .hc-num { color: var(--ember); }

/* ---- navigation ---- */
.site-nav { margin-left: auto; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-list a {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 9px 12px 11px;
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}

.nav-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--gray);
  transition: color .2s var(--ease);
}

.nav-list a:hover { background: rgba(23, 19, 15, .06); }
.nav-list a:hover .nav-num { color: var(--milan); }

.nav-list a[aria-current="page"] { color: var(--milan); }

.nav-list a[aria-current="page"] .nav-num { color: var(--milan); }

.nav-list a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--milan);
}

/* ---- mobile toggle ---- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

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

.nav-toggle-bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 16px;
}

.nav-toggle-bars span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .22s var(--ease), opacity .18s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 13. Site footer ---------- */
.site-footer {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: #E8E1D5;
  margin-top: clamp(40px, 7vw, 96px);
}

.footer-line {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--milan) 0%, var(--ember) 38%, rgba(228, 87, 46, 0) 76%);
}

.footer-arc {
  position: absolute;
  right: -150px;
  top: -170px;
  width: 540px;
  height: 540px;
  border: 1px solid rgba(247, 243, 234, .10);
  border-radius: 50%;
  pointer-events: none;
}

.footer-arc::after {
  content: "";
  position: absolute;
  inset: 74px;
  border: 1px solid rgba(228, 87, 46, .22);
  border-radius: 50%;
}

.footer-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(46px, 7vw, 88px) var(--gutter) 30px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: clamp(24px, 3.4vw, 52px);
}

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

.footer-brand-link .brand-mark {
  width: 32px;
  height: 32px;
  color: var(--ember);
}

.footer-brand-name {
  font-family: var(--font-title);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: .01em;
  color: var(--cream);
}

.footer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
  margin-bottom: 22px;
}

.footer-tags li {
  padding: 5px 11px;
  border: 1px solid rgba(247, 243, 234, .18);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #B9AE9D;
}

.footer-col h3 {
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: #9A8F7D;
}

.footer-index,
.footer-links {
  display: grid;
  gap: 10px;
  font-size: 14.5px;
}

.footer-index li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 10px;
  align-items: baseline;
  color: #CFC6B6;
}

.footer-index .n {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: #7E7462;
}

.footer-links a {
  color: #E8E1D5;
  text-decoration: none;
  transition: color .18s var(--ease);
}

.footer-links a:hover { color: var(--ember); }

.footer-contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(212px, 1fr));
  gap: 20px 28px;
  margin-top: clamp(34px, 5vw, 56px);
  padding-top: 28px;
  border-top: 1px solid rgba(247, 243, 234, .14);
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.contact-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: #8B8070;
}

.contact-value {
  font-size: 14.5px;
  color: var(--cream);
  word-break: break-word;
}

.copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.copy-btn {
  padding: 4px 11px;
  border: 1px solid rgba(247, 243, 234, .22);
  border-radius: var(--radius-pill);
  background: transparent;
  color: #CFC6B6;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.copy-btn:hover { border-color: var(--ember); color: var(--ember); }

.copy-btn[data-copied] {
  border-color: var(--lime);
  color: var(--lime);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 26px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid rgba(247, 243, 234, .14);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: #8B8070;
}

.footer-copy,
.footer-icp { max-width: none; }

.legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.legal-links a {
  color: #B9AE9D;
  text-decoration: none;
  transition: color .18s var(--ease);
}

.legal-links a:hover { color: var(--cream); }

.site-footer :focus-visible { outline-color: var(--lime); }

/* ---------- 14. Reveal animation ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .38s var(--ease), transform .38s var(--ease);
}

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

/* ---------- 15. Responsive ---------- */
@media (max-width: 1080px) {
  .footer-top { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-col:last-child { grid-column: 2 / 4; }
}

@media (max-width: 1023px) {
  :root { --header-h: 74px; }

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

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 5;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 22px 44px -30px rgba(23, 19, 15, .7);
    transition: max-height .28s var(--ease), opacity .24s var(--ease), visibility .28s var(--ease);
  }

  .site-nav[data-open] {
    max-height: 620px;
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px;
    padding: 14px var(--gutter) 22px;
  }

  .nav-list a {
    background: rgba(23, 19, 15, .045);
    border-radius: var(--radius-sm);
    padding: 13px 12px;
    font-size: 15px;
  }

  .nav-list a[aria-current="page"]::after { display: none; }

  .nav-list a[aria-current="page"] {
    background: rgba(200, 16, 46, .09);
  }

  .footer-arc { display: none; }
}

@media (min-width: 1024px) {
  .site-header[data-collapsed] {
    background: var(--ink);
    border-bottom-color: var(--ink);
  }

  .site-header[data-collapsed] .header-inner { min-height: 52px; }

  .site-header[data-collapsed] .brand-name,
  .site-header[data-collapsed] .brand-sub { color: var(--cream); }

  .site-header[data-collapsed] .brand-mark { color: var(--ember); }

  .site-header[data-collapsed] .site-nav { display: none; }

  .site-header[data-collapsed] .header-current { display: flex; }
}

@media (max-width: 900px) {
  .grid--2,
  .grid--3,
  .grid--4,
  .grid--5-7,
  .grid--4-8 { grid-template-columns: minmax(0, 1fr); }

  .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
  .footer-col:last-child { grid-column: auto; }
}

@media (max-width: 560px) {
  body { font-size: 15.5px; }

  .index-strip { gap: 4px 14px; }

  .footer-top { grid-template-columns: minmax(0, 1fr); }

  .footer-legal {
    flex-direction: column;
    align-items: flex-start;
  }

  .brand-sub { display: none; }
}

/* ---------- 16. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }

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