/* ==========================================================================
   GOGO综合体育 · 共享外壳与基础组件  /assets/site.css
   夜场战术板：深蓝底 · 草绿斜切 · 荧光橙唯一强调 · 1px 精密网格
   ========================================================================== */

/* 1. Reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, ul, ol, li, figure, figcaption, blockquote, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; border-spacing: 0; }

/* 2. Tokens --------------------------------------------------------------- */
:root {
  --night: #0B1B2B;
  --night-2: #12293F;
  --grass: #1F6F4A;
  --grass-2: #2F8C60;
  --flare: #FF6A13;
  --chalk: #F4F7F5;
  --amber: #E0A33A;
  --cyan: #4FB3C9;
  --rose: #C8477E;
  --graphite: #6C7A85;
  --grid: #24405A;

  --ink: #F4F7F5;
  --ink-soft: rgba(244, 247, 245, .74);
  --ink-dim: rgba(244, 247, 245, .48);
  --hair: rgba(36, 64, 90, .85);

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

  --shell: 1320px;
  --rail: 104px;
  --pad: clamp(16px, 4vw, 36px);
  --gap: clamp(16px, 3vw, 40px);
  --dur: 240ms;
  --dur-slow: 400ms;
  --ease: cubic-bezier(.2, .7, .3, 1);
  --header-h: 176px;
}

/* 3. Base ----------------------------------------------------------------- */
body {
  background-color: var(--night);
  background-image:
    repeating-linear-gradient(96deg, rgba(31, 111, 74, .10) 0 44px, rgba(31, 111, 74, 0) 44px 88px),
    radial-gradient(1240px 540px at 84% -10%, rgba(255, 106, 19, .13), transparent 62%),
    radial-gradient(940px 660px at 6% 94%, rgba(47, 140, 96, .16), transparent 66%);
  background-attachment: fixed, fixed, fixed;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4 { line-height: 1.25; font-weight: 800; letter-spacing: .02em; }
h1 { font-size: clamp(28px, 4.4vw, 46px); letter-spacing: .01em; }
h2 { font-size: clamp(21px, 2.8vw, 30px); }
h3 { font-size: clamp(17px, 2vw, 21px); }
strong { color: var(--chalk); font-weight: 700; }
::selection { background: var(--flare); color: var(--night); }
:focus-visible { outline: 2px solid var(--flare); outline-offset: 3px; }

/* 4. Skip link ------------------------------------------------------------ */
.skip-link {
  position: absolute; left: 12px; top: -80px; z-index: 220;
  padding: 11px 20px;
  background: var(--flare); color: var(--night);
  font-weight: 700; font-size: 14px; letter-spacing: .06em;
  transition: top var(--dur) var(--ease);
}
.skip-link:focus { top: 12px; }

/* 5. Header --------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 90;
  background: rgba(11, 27, 43, .93);
  border-bottom: 1px solid var(--grid);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.header-topline {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  max-width: var(--shell); margin: 0 auto;
  padding: 8px var(--pad);
  border-bottom: 1px solid var(--hair);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em;
  color: var(--graphite);
}
.season-tag { display: flex; align-items: center; gap: 9px; color: var(--ink-soft); font-variant-numeric: tabular-nums; }
.season-dot {
  width: 7px; height: 7px; flex: none;
  background: var(--flare);
  animation: gg-pulse 2.6s var(--ease) infinite;
}
@keyframes gg-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(255, 106, 19, .45); }
  50% { opacity: .6; box-shadow: 0 0 0 6px rgba(255, 106, 19, 0); }
}
.header-region { color: var(--graphite); white-space: nowrap; }

.masthead {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 18px;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 16px var(--pad) 14px;
}
.masthead-side { display: flex; align-items: center; gap: 10px; }
.masthead-side--start { justify-self: start; }
.masthead-side--end { justify-self: end; }

.brand {
  position: relative;
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 3px 30px;
  text-align: center;
}
.brand::before, .brand::after {
  content: ""; position: absolute; top: 3px; bottom: 3px; width: 4px;
  background: var(--flare);
  transform: skewX(-14deg);
  transition: background var(--dur) var(--ease);
}
.brand::before { left: 0; }
.brand::after { right: 0; }
.brand:hover::before, .brand:hover::after { background: var(--grass-2); }
.brand-line {
  font-size: clamp(19px, 2.4vw, 27px);
  font-weight: 800; letter-spacing: .14em; line-height: 1.1;
  color: var(--chalk);
}
.brand-descriptor {
  font-family: var(--font-mono);
  font-size: 11.5px; letter-spacing: .14em;
  color: var(--graphite);
}

.site-nav {
  border-top: 1px solid var(--grid);
  background: linear-gradient(180deg, rgba(18, 41, 63, .6), rgba(11, 27, 43, 0));
}
.nav-list {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 2px;
  max-width: var(--shell); margin: 0 auto;
  padding: 0 var(--pad);
}
.nav-link {
  display: block;
  padding: 12px 18px;
  font-size: 15px; letter-spacing: .06em;
  color: var(--ink-soft);
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.nav-link:hover { color: var(--chalk); background: rgba(36, 64, 90, .5); }
.nav-link[aria-current="page"] {
  color: var(--chalk);
  background: rgba(18, 41, 63, .9);
  border-bottom-color: var(--flare);
}

.nav-toggle {
  display: none;
  align-items: center; gap: 9px;
  padding: 9px 14px;
  border: 1px solid var(--grid);
  background: rgba(18, 41, 63, .6);
  color: var(--chalk);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .14em;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.nav-toggle:hover { border-color: var(--grass-2); color: var(--flare); }
.nav-toggle-bars { position: relative; display: block; width: 18px; height: 2px; background: currentColor; transition: background var(--dur) var(--ease); }
.nav-toggle-bars::before, .nav-toggle-bars::after {
  content: ""; position: absolute; left: 0; width: 18px; height: 2px; background: currentColor;
  transition: transform var(--dur) var(--ease);
}
.nav-toggle-bars::before { top: -6px; }
.nav-toggle-bars::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after { transform: translateY(-6px) rotate(-45deg); }

/* 6. Buttons -------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--grid);
  background: transparent;
  color: var(--chalk);
  font-size: 14px; font-weight: 600; letter-spacing: .08em; line-height: 1;
  white-space: nowrap; cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.btn--flare { background: var(--flare); border-color: var(--flare); color: var(--night); }
.btn--flare:hover { background: #ff8038; border-color: #ff8038; }
.btn--ghost { border-color: rgba(244, 247, 245, .28); }
.btn--ghost:hover { border-color: var(--grass-2); background: rgba(47, 140, 96, .18); }
.btn--bare { border-color: transparent; padding-inline: 6px; color: var(--ink-soft); }
.btn--bare:hover { color: var(--flare); }

/* 7. Footer --------------------------------------------------------------- */
.site-footer {
  margin-top: clamp(40px, 7vw, 92px);
  border-top: 1px solid var(--grid);
  background: linear-gradient(180deg, rgba(11, 27, 43, .25), rgba(11, 27, 43, .96) 42%), var(--night);
}
.footer-band {
  position: relative; overflow: hidden;
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
  background: linear-gradient(100deg, var(--grass) 0 46%, rgba(18, 41, 63, .92) 46% 100%);
}
.footer-band::after {
  content: ""; position: absolute; right: -40px; top: -60px; width: 220px; height: 220px;
  background: rgba(255, 106, 19, .16);
  transform: skewX(-22deg);
  pointer-events: none;
}
.footer-band-inner {
  position: relative; z-index: 1;
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 14px;
  max-width: var(--shell); margin: 0 auto;
  padding: 26px var(--pad);
}
.footer-slogan { font-size: clamp(20px, 3vw, 30px); font-weight: 800; letter-spacing: .06em; color: var(--chalk); }
.footer-mark {
  font-family: var(--font-mono); font-weight: 700;
  font-size: clamp(28px, 6vw, 56px); letter-spacing: .2em;
  color: rgba(244, 247, 245, .22);
  line-height: 1;
}
.footer-body {
  display: grid;
  grid-template-columns: 1.4fr 1.5fr 1fr 1.7fr;
  gap: var(--gap);
  max-width: var(--shell); margin: 0 auto;
  padding: clamp(30px, 5vw, 54px) var(--pad);
}
.footer-brand-name { font-size: 19px; font-weight: 800; letter-spacing: .1em; color: var(--chalk); }
.footer-brand-desc { margin-top: 6px; font-size: 14px; color: var(--ink-soft); }
.footer-regional {
  margin-top: 14px; padding-top: 12px;
  border-top: 1px solid var(--hair);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em;
  color: var(--graphite);
}
.footer-heading {
  font-family: var(--font-mono);
  font-size: 12px; font-weight: 500; letter-spacing: .2em;
  color: var(--graphite);
  margin-bottom: 14px;
}
.footer-nav-list li, .footer-legal-list li { margin-bottom: 9px; }
.footer-link {
  font-size: 14.5px; color: var(--ink-soft);
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.footer-link:hover { color: var(--chalk); border-bottom-color: var(--grass-2); }
.footer-link[aria-current="page"] { color: var(--flare); }
.footer-legal-note { margin-top: 14px; font-size: 13px; line-height: 1.7; color: var(--graphite); }
.footer-contact-line {
  display: flex; gap: 10px;
  font-family: var(--font-mono); font-size: 13px; line-height: 1.9;
  color: var(--ink-soft);
  word-break: break-word;
}
.footer-contact-key { flex: none; width: 34px; color: var(--graphite); }
.footer-contact-note { margin-top: 10px; font-size: 13px; color: var(--graphite); }
.footer-base {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
  max-width: var(--shell); margin: 0 auto;
  padding: 16px var(--pad) 26px;
  border-top: 1px solid var(--grid);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em;
  color: var(--graphite);
}
.footer-copy { color: var(--ink-dim); }
.footer-icp { color: var(--graphite); }

/* 8. Layout --------------------------------------------------------------- */
.wrap { width: 100%; max-width: var(--shell); margin: 0 auto; padding: 0 var(--pad); }
.page-grid {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  gap: var(--gap);
  width: 100%; max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.rail {
  position: sticky;
  top: calc(var(--header-h) + 18px);
  align-self: start;
  display: flex; flex-direction: column; gap: 4px;
  padding: 22px 0 22px;
  border-right: 1px solid var(--grid);
}
.rail-station {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .26em;
  color: var(--graphite);
  padding-bottom: 14px;
}
.rail-list { display: flex; flex-direction: column; gap: 2px; }
.rail-link {
  display: grid; grid-template-columns: auto 1fr; gap: 8px; align-items: baseline;
  padding: 8px 12px 8px 10px;
  border-left: 2px solid transparent;
  font-size: 13px; color: var(--graphite);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.rail-link:hover { color: var(--chalk); border-left-color: var(--grass-2); }
.rail-link[aria-current="true"] {
  color: var(--chalk);
  border-left-color: var(--flare);
  background: rgba(255, 106, 19, .08);
}
.rail-num { font-family: var(--font-mono); font-size: 11px; opacity: .72; }

.breadcrumbs {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  padding: 18px 0 4px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em;
  color: var(--graphite);
}
.breadcrumbs a:hover { color: var(--chalk); }
.breadcrumbs [aria-current="page"] { color: var(--ink-soft); }
.crumb-sep { color: var(--grid); }

.section-head {
  display: grid; grid-template-columns: auto 1fr; gap: clamp(14px, 2.5vw, 28px);
  align-items: end;
  padding: 30px 0 14px;
  border-bottom: 1px solid var(--grid);
}
.section-num {
  font-family: var(--font-mono); font-variant-numeric: tabular-nums;
  font-size: clamp(46px, 9vw, 132px); font-weight: 700; line-height: .8;
  color: var(--grid);
}
.section-title { font-size: clamp(20px, 3vw, 30px); letter-spacing: .03em; }
.section-kicker {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .16em;
  color: var(--graphite);
}

.rule { height: 1px; border: 0; background: var(--grid); }

.prose { max-width: 38em; color: var(--ink-soft); }
.prose p { margin-bottom: 1.1em; }
.prose h2 { font-size: clamp(19px, 2.4vw, 24px); color: var(--chalk); margin: 1.7em 0 .6em; }
.prose h3 { font-size: 17px; color: var(--chalk); margin: 1.4em 0 .5em; }
.prose ul { margin: 0 0 1.2em; }
.prose li { position: relative; padding-left: 20px; margin-bottom: .5em; }
.prose li::before {
  content: ""; position: absolute; left: 0; top: .74em;
  width: 9px; height: 2px; background: var(--flare);
}
.prose a { color: var(--chalk); border-bottom: 1px solid var(--grass-2); }

/* 9. Data components ------------------------------------------------------ */
.band {
  position: relative;
  display: grid; gap: 10px;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid var(--grid);
  background:
    linear-gradient(112deg, rgba(31, 111, 74, .92) 0 36%, rgba(18, 41, 63, .88) 36% 100%);
}
.band-num {
  font-family: var(--font-mono); font-variant-numeric: tabular-nums;
  font-size: clamp(38px, 7.6vw, 86px); font-weight: 700; line-height: .95;
  color: var(--chalk);
}
.band-note { font-size: 15px; color: var(--ink-soft); max-width: 34em; }

.board {
  display: grid;
  border: 1px solid var(--grid);
  background: rgba(18, 41, 63, .42);
}
.board-head {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 14px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--grid);
}
.board-body { padding: 20px; }
.board-foot {
  display: flex; flex-wrap: wrap; gap: 10px;
  padding: 14px 20px;
  border-top: 1px solid var(--grid);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .05em;
  color: var(--graphite);
}

.stat { display: grid; gap: 4px; }
.stat-num {
  font-family: var(--font-mono); font-variant-numeric: tabular-nums;
  font-size: clamp(30px, 5vw, 54px); font-weight: 700; line-height: 1;
  color: var(--chalk);
}
.stat-label { font-size: 13px; letter-spacing: .04em; color: var(--graphite); }

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--grid);
  background: rgba(11, 27, 43, .62);
  -webkit-overflow-scrolling: touch;
}
.data-table { width: 100%; min-width: 640px; font-size: 14px; }
.data-table thead th {
  position: sticky; top: 0; z-index: 2;
  padding: 12px 14px;
  background: var(--night-2);
  border-bottom: 1px solid var(--grid);
  text-align: left;
  font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: .08em;
  color: var(--ink-soft);
  white-space: nowrap;
}
.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--hair);
  color: var(--ink-soft);
  vertical-align: middle;
}
.data-table tbody tr { transition: background var(--dur) var(--ease); }
.data-table tbody tr:hover { background: rgba(47, 140, 96, .12); }
.data-table tbody td:first-child {
  box-shadow: inset 4px 0 0 var(--tier, transparent);
  transition: box-shadow 200ms var(--ease);
}
.data-table tbody tr:hover td:first-child { box-shadow: inset 8px 0 0 var(--tier, transparent); }
.data-table .num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }

.tier-a { --tier: var(--amber); }
.tier-b { --tier: var(--cyan); }
.tier-c { --tier: var(--rose); }
.tier-d { --tier: var(--graphite); }

.legend {
  display: flex; flex-wrap: wrap; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em;
  color: var(--ink-soft);
}
.legend:hover .legend-item { opacity: .55; }
.legend:hover .legend-item:hover { opacity: 1; }
.legend-item {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 10px;
  border: 1px solid var(--grid);
  background: rgba(18, 41, 63, .5);
  transition: opacity var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.legend-item:hover { border-color: var(--tier, var(--grid)); }
.legend-swatch { width: 14px; height: 6px; background: var(--tier, var(--graphite)); }

.tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--grid);
  background: rgba(18, 41, 63, .5);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em;
  color: var(--ink-soft);
}
.tag--flare { border-color: rgba(255, 106, 19, .5); color: var(--flare); }

/* 10. Media --------------------------------------------------------------- */
.media-frame {
  position: relative; overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--grid);
  background: linear-gradient(124deg, var(--night-2) 0%, var(--night) 62%);
}
.media-frame img { width: 100%; height: 100%; object-fit: cover; }
.media-frame::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(148deg, rgba(31, 111, 74, .30) 0%, rgba(31, 111, 74, 0) 46%, rgba(255, 106, 19, .16) 100%);
}
.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--slot {
  background-image:
    repeating-linear-gradient(135deg, rgba(47, 140, 96, .18) 0 2px, rgba(11, 27, 43, 0) 2px 12px),
    linear-gradient(124deg, var(--night-2) 0%, var(--night) 62%);
}
.media-frame figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 1;
  padding: 26px 14px 10px;
  background: linear-gradient(0deg, rgba(11, 27, 43, .92), rgba(11, 27, 43, 0));
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em;
  color: var(--ink-soft);
}

/* 11. Motion utilities ---------------------------------------------------- */
[data-reveal] {
  opacity: 0; transform: translateY(14px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
[data-reveal].is-in { opacity: 1; transform: none; }

.scroll-progress {
  position: fixed; top: 0; left: 0; z-index: 210;
  height: 3px; width: var(--progress, 0%);
  background: linear-gradient(90deg, var(--grass-2), var(--flare));
  pointer-events: none;
  transition: width 90ms linear;
}
.back-to-top {
  position: fixed; right: clamp(14px, 3vw, 30px); bottom: 26px; z-index: 160;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 16px;
  border: 1px solid var(--grid);
  background: rgba(18, 41, 63, .94);
  color: var(--chalk);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em;
  cursor: pointer;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur) linear, border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.back-to-top:hover { border-color: var(--flare); color: var(--flare); }

/* 12. Responsive ---------------------------------------------------------- */
@media (max-width: 1100px) {
  .footer-body { grid-template-columns: 1.3fr 1.4fr 1.3fr; }
  .footer-contact { grid-column: 1 / -1; }
}
@media (max-width: 980px) {
  .page-grid { grid-template-columns: minmax(0, 1fr); }
  .rail {
    position: static;
    flex-direction: row; align-items: center; gap: 10px;
    overflow-x: auto;
    padding: 12px 0;
    border-right: 0;
    border-bottom: 1px solid var(--grid);
  }
  .rail-station { padding: 0 14px 0 0; white-space: nowrap; }
  .rail-list { flex-direction: row; gap: 6px; }
  .rail-link {
    grid-template-columns: auto auto; gap: 6px;
    padding: 8px 12px;
    border-left: 0;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
  }
  .rail-link:hover { border-left-color: transparent; border-bottom-color: var(--grass-2); }
  .rail-link[aria-current="true"] { border-left-color: transparent; border-bottom-color: var(--flare); background: rgba(255, 106, 19, .07); }
}
@media (max-width: 900px) {
  .masthead {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "brand toggle"
      "start end";
    gap: 10px 12px;
    padding: 14px var(--pad);
  }
  .brand { grid-area: brand; align-items: flex-start; text-align: left; padding: 2px 0 2px 15px; }
  .brand::after { display: none; }
  .brand-line { letter-spacing: .1em; }
  .masthead-side--start { grid-area: start; justify-self: start; }
  .masthead-side--end { grid-area: end; justify-self: end; }
  .nav-toggle { grid-area: toggle; display: inline-flex; justify-self: end; }
  .header-region { display: none; }
  .site-nav { display: none; }
  .site-nav[data-open="true"] { display: block; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0; padding: 8px var(--pad) 18px; }
  .nav-link {
    padding: 14px 0 14px 14px;
    border-bottom: 1px solid var(--hair);
    border-left: 3px solid transparent;
  }
  .nav-link:hover { background: rgba(36, 64, 90, .34); }
  .nav-link[aria-current="page"] {
    border-bottom-color: var(--hair);
    border-left-color: var(--flare);
    background: rgba(18, 41, 63, .8);
  }
}
@media (max-width: 760px) {
  .footer-body { grid-template-columns: 1fr; gap: 26px; }
  .footer-mark { display: none; }
  .band { background: linear-gradient(112deg, rgba(31, 111, 74, .92) 0 62%, rgba(18, 41, 63, .9) 62% 100%); }
}
@media (max-width: 520px) {
  .masthead-side .btn { padding: 9px 14px; font-size: 13px; letter-spacing: .06em; }
  .brand-descriptor { font-size: 10.5px; letter-spacing: .08em; }
  .section-head { grid-template-columns: 1fr; align-items: start; gap: 8px; }
  .page-grid, .wrap { padding-inline: 16px; }
}

/* 13. 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;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .season-dot { animation: none; box-shadow: none; }
  .scroll-progress { transition: none; }
}