/* =====================================================
   爱游戏(CHINA) · 全站共享样式
   File: /assets/site.css
   ===================================================== */

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

/* ---------- Design Tokens ---------- */
:root {
  --c-bg: #0B1B3A;
  --c-bg-deep: #10213D;
  --c-panel: #1F2A44;
  --c-accent: #00E5A0;
  --c-hot: #FF6B35;
  --c-warn: #FFD166;
  --c-text: #FFFFFF;
  --c-text-dim: #C0C8D0;
  --c-line: rgba(192, 200, 208, 0.16);

  --font-head: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
  --font-mono: "Space Mono", "SF Mono", Consolas, "Liberation Mono", monospace;

  --container: 1200px;
  --gutter: 24px;
  --shadow: 0 14px 36px rgba(3, 8, 22, 0.45);
  --shadow-hover: 0 22px 48px rgba(3, 8, 22, 0.6);
}

/* ---------- Base ---------- */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 0;
  scrollbar-color: var(--c-panel) var(--c-bg-deep);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text-dim);
  background-color: var(--c-bg);
  background-image: radial-gradient(rgba(255,255,255,0.028) 1px, transparent 1px);
  background-size: 6px 6px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.25;
  color: var(--c-text);
  letter-spacing: 0.01em;
  text-wrap: balance;
}

h1 { font-size: clamp(32px, 5vw, 52px); }
h2 { font-size: clamp(24px, 3.4vw, 36px); }
h3 { font-size: clamp(19px, 2vw, 24px); }
h4 { font-size: 18px; }

p { margin-bottom: 1em; }

a {
  color: var(--c-accent);
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, padding 0.2s ease, transform 0.2s ease;
}

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

ul, ol { padding-left: 1.2em; }

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

hr { border: 0; height: 1px; background: var(--c-line); margin: 24px 0; }

::selection { background: var(--c-accent); color: var(--c-bg); }

:focus-visible {
  outline: 2px solid var(--c-hot);
  outline-offset: 3px;
}

/* ---------- Main / Skip / Scroll ---------- */
#main-content {
  flex: 1 0 auto;
  min-width: 0;
  scroll-margin-top: 150px;
}

#main-content:focus { outline: none; }

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 10002;
  display: inline-block;
  padding: 10px 18px;
  background: var(--c-accent);
  color: var(--c-bg);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  line-height: 1;
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.skip-link:focus { top: 12px; color: var(--c-bg); }

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--c-accent), var(--c-hot));
  box-shadow: 0 0 10px rgba(0, 229, 160, 0.4);
  z-index: 10001;
  pointer-events: none;
}

/* ---------- Utility ---------- */
.font-mono { font-family: var(--font-mono); }
.no-skew { transform: none !important; }

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow { max-width: 880px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 27, 58, 0.97);
  border-bottom: 1px solid var(--c-line);
}

.site-header__beam {
  height: 3px;
  background: linear-gradient(90deg, var(--c-accent) 0%, rgba(0, 229, 160, 0.25) 55%, transparent 85%);
}

.site-header__top { min-height: 78px; }

.site-header__bar {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--c-text);
  line-height: 1.2;
}

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

.site-brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  background: var(--c-accent);
  color: var(--c-bg);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.02em;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.site-brand:hover .site-brand__mark {
  background: var(--c-hot);
  transform: rotate(-4deg);
}

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

.site-brand__name {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 19px;
  letter-spacing: 0.06em;
  color: var(--c-text);
  line-height: 1.2;
}

.site-brand__tagline {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
}

.site-header__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid rgba(0, 229, 160, 0.3);
  background: rgba(0, 229, 160, 0.06);
  color: var(--c-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.status-dot {
  width: 7px;
  height: 7px;
  background: var(--c-accent);
  box-shadow: 0 0 8px 2px rgba(0, 229, 160, 0.45);
  transform: rotate(45deg);
  flex: 0 0 auto;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: transparent;
  border: 1px solid var(--c-line);
  color: var(--c-text);
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.nav-toggle:hover {
  border-color: var(--c-accent);
  background: rgba(0, 229, 160, 0.06);
}

.nav-toggle__box {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 18px;
}

.nav-toggle__line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--c-accent);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle__text { font-size: 13px; }

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

.site-header__nav-band {
  background: rgba(16, 33, 61, 0.95);
  border-top: 1px solid rgba(192, 200, 208, 0.1);
}

.site-header__nav-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 52px;
}

.site-nav { display: flex; }

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  margin: 0;
}

.site-nav__item { margin: 0; }

.site-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 16px;
  color: var(--c-text-dim);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  border-bottom: 3px solid transparent;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.site-nav__link:hover {
  color: var(--c-text);
  background: rgba(0, 229, 160, 0.07);
}

.site-nav__link[aria-current="page"] {
  color: var(--c-text);
  border-bottom-color: var(--c-hot);
  background: rgba(0, 229, 160, 0.1);
}

.site-nav__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-accent);
  transition: color 0.2s ease;
}

.site-nav__link:hover .site-nav__num,
.site-nav__link[aria-current="page"] .site-nav__num { color: var(--c-hot); }

.site-nav__label { white-space: nowrap; letter-spacing: 0.04em; }

.site-header__meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-text-dim);
  white-space: nowrap;
  padding: 4px 0;
}

.site-header__meta-label { opacity: 0.6; }

.site-header__meta-value {
  padding: 3px 8px;
  background: rgba(255, 107, 53, 0.12);
  border-left: 2px solid var(--c-hot);
  color: var(--c-hot);
}

/* ---------- Footer ---------- */
.site-footer {
  flex-shrink: 0;
  margin-top: 80px;
  position: relative;
  background: var(--c-bg-deep);
  border-top: 1px solid var(--c-line);
}

.site-footer__beam {
  height: 3px;
  background: linear-gradient(90deg, var(--c-hot), var(--c-accent) 55%, rgba(0, 229, 160, 0.15) 80%, transparent);
}

.site-footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 40px;
  padding: 56px 0 44px;
}

.site-footer__brand { min-width: 0; }

.site-footer__statement {
  margin-top: 18px;
  padding-left: 16px;
  border-left: 3px solid var(--c-accent);
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-text-dim);
}

.site-footer__title {
  margin-bottom: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-accent);
  text-transform: uppercase;
}

.site-footer__list {
  list-style: none;
  display: grid;
  gap: 10px;
  padding-left: 0;
}

.site-footer__link {
  display: inline-block;
  color: var(--c-text-dim);
  font-size: 14px;
  line-height: 1.6;
  padding-left: 14px;
  position: relative;
}

.site-footer__link::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--c-accent);
  font-family: var(--font-mono);
  font-size: 14px;
}

.site-footer__link:hover {
  color: var(--c-accent);
  padding-left: 18px;
}

.site-footer__contact-list {
  list-style: none;
  display: grid;
  gap: 12px;
  padding-left: 0;
}

.site-footer__contact-item { display: grid; gap: 2px; }

.site-footer__contact-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-accent);
  opacity: 0.85;
}

.site-footer__contact-value {
  font-size: 13px;
  color: var(--c-text-dim);
  word-break: break-all;
}

.site-footer__note {
  margin-top: 18px;
  padding-left: 12px;
  border-left: 2px solid var(--c-hot);
  font-size: 12px;
  line-height: 1.7;
  color: rgba(192, 200, 208, 0.7);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding: 18px 0;
  border-top: 1px solid var(--c-line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-text-dim);
}

.site-footer__copyright { margin: 0; }
.site-footer__icp { margin: 0; letter-spacing: 0.06em; }

.site-brand--footer .site-brand__mark { background: var(--c-hot); }
.site-brand--footer .site-brand__tagline { color: var(--c-text-dim); }
.site-brand--footer:hover .site-brand__mark { background: var(--c-accent); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  line-height: 1;
  color: var(--c-text);
  background: transparent;
  border: 1px solid var(--c-accent);
  clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
  cursor: pointer;
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

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

.btn--primary {
  background: var(--c-accent);
  color: var(--c-bg);
  border-color: var(--c-accent);
}

.btn--primary:hover {
  background: var(--c-hot);
  border-color: var(--c-hot);
  color: var(--c-bg);
}

.btn--ghost {
  border-color: currentColor;
  color: var(--c-text-dim);
}

.btn--ghost:hover {
  border-color: var(--c-hot);
  color: var(--c-hot);
  background: transparent;
}

.btn--xs { padding: 8px 14px; font-size: 12px; }
.btn--sm { padding: 10px 18px; font-size: 13px; }
.btn--lg { padding: 16px 32px; font-size: 16px; }
.btn--block { width: 100%; }

/* ---------- Panels ---------- */
.panel {
  position: relative;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
}

.panel--cut {
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.panel--cut-bottom {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.panel--soil { background: var(--c-bg-deep); }
.panel--ink { background: var(--c-bg); }
.panel--pad { padding: 32px; }

.panel--hover { transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease; }
.panel--hover:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(0, 229, 160, 0.35);
  transform: translateY(-2px);
}

/* ---------- Sections ---------- */
.section { position: relative; padding-block: 64px; }
.section--tight { padding-block: 40px; }
.section--loose { padding-block: 96px; }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--c-line);
}

.section-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 6px;
}

.section-title { transform: skewX(-3deg); }

/* ---------- Page Hero ---------- */
.page-hero {
  position: relative;
  padding: 52px 0 48px;
  background: linear-gradient(180deg, var(--c-bg-deep) 0%, var(--c-bg) 100%);
  border-bottom: 1px solid var(--c-line);
}

.page-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-hot) 50%, transparent 90%);
}

.page-hero__meta {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-hot);
  margin-bottom: 10px;
}

.page-hero__title { margin-bottom: 12px; transform: skewX(-3deg); }

.page-hero__lead {
  max-width: 620px;
  color: var(--c-text-dim);
  font-size: 16px;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  font-size: 13px;
  color: var(--c-text-dim);
  padding: 14px 0;
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.breadcrumb__link { color: var(--c-text-dim); }
.breadcrumb__link:hover { color: var(--c-accent); }
.breadcrumb__sep { color: var(--c-hot); font-family: var(--font-mono); }
.breadcrumb [aria-current="page"] { color: var(--c-text); }

/* ---------- Grid ---------- */
.grid {
  display: grid;
  gap: 24px;
}

.grid > * { min-width: 0; }

.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--asym-1 { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); }
.grid--asym-2 { grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); }

/* ---------- Stat ---------- */
.stat {
  position: relative;
  padding: 22px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-accent);
  transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}

.stat:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-left-color: var(--c-hot);
}

.stat::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 42%;
  height: 3px;
  background: linear-gradient(270deg, var(--c-accent), transparent);
}

.stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 700;
  color: var(--c-accent);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.stat__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--c-text-dim);
  letter-spacing: 0.04em;
}

/* ---------- Tag ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-accent);
  border: 1px solid var(--c-accent);
  background: rgba(0, 229, 160, 0.08);
  clip-path: polygon(4px 0, 100% 0, calc(100% - 4px) 100%, 0 100%);
}

.tag--hot {
  color: var(--c-hot);
  border-color: var(--c-hot);
  background: rgba(255, 107, 53, 0.08);
}

.tag--warn {
  color: var(--c-warn);
  border-color: var(--c-warn);
  background: rgba(255, 209, 102, 0.08);
}

/* ---------- Image Frame ---------- */
.image-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  aspect-ratio: 16 / 9;
}

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

.image-frame--cut {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.image-frame__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding: 24px;
  text-align: center;
  background:
    radial-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(135deg, var(--c-bg-deep), var(--c-panel));
  background-size: 8px 8px, 100% 100%;
  color: var(--c-text-dim);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  line-height: 1.6;
}

/* ---------- Data Line ---------- */
.data-line {
  height: 2px;
  border: 0;
  background: linear-gradient(90deg, var(--c-accent), var(--c-hot), transparent);
}

.data-line--rev {
  background: linear-gradient(90deg, transparent, var(--c-hot), var(--c-accent));
}

/* ---------- Link More ---------- */
.link-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--c-accent);
  padding: 4px 0;
}

.link-more::after {
  content: "→";
  transition: transform 0.2s ease;
}

.link-more:hover { color: var(--c-hot); }
.link-more:hover::after { transform: translateX(4px); }

/* ---------- Prose ---------- */
.prose {
  color: var(--c-text-dim);
  font-size: 16px;
  line-height: 1.9;
}

.prose > * + * { margin-top: 1em; }
.prose h2, .prose h3 { color: var(--c-text); margin-top: 1.8em; }
.prose a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(0, 229, 160, 0.4); }
.prose a:hover { text-decoration-color: var(--c-hot); color: var(--c-hot); }
.prose ul, .prose ol { padding-left: 1.5em; }
.prose li + li { margin-top: 0.4em; }
.prose strong { color: var(--c-text); font-weight: 700; }
.prose blockquote {
  border-left: 3px solid var(--c-accent);
  padding-left: 16px;
  color: var(--c-text);
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .site-footer__top { gap: 28px; }
  .site-nav__link { padding-inline: 12px; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 880px) {
  #main-content { scroll-margin-top: 90px; }

  .nav-toggle { display: inline-flex; }
  .site-header__status { display: none; }
  .site-header__meta { display: none; }

  .site-header__nav-band {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    visibility: hidden;
    max-height: 0;
    overflow: hidden;
    background: var(--c-bg-deep);
    border-top: 1px solid var(--c-line);
    box-shadow: 0 28px 56px rgba(3, 8, 22, 0.65);
    transition: max-height 0.35s ease, visibility 0s 0.35s;
  }

  .site-header__nav-band[data-open="true"] {
    visibility: visible;
    max-height: 460px;
    transition: max-height 0.35s ease, visibility 0s;
  }

  .site-header__nav-flex {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    min-height: 0;
    gap: 0;
    padding: 12px 0 8px;
  }

  .site-nav { display: block; }

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

  .site-nav__item { border-bottom: 1px solid var(--c-line); }

  .site-nav__link {
    display: flex;
    align-items: center;
    padding: 14px 8px;
    border-bottom: none;
  }

  .site-nav__link[aria-current="page"] {
    box-shadow: inset 3px 0 0 var(--c-hot);
    background: rgba(0, 229, 160, 0.08);
  }

  .site-footer__top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 48px 0 40px;
  }

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

  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--asym-1, .grid--asym-2 { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .site-footer__top {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 40px 0 32px;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .grid--2 { grid-template-columns: 1fr; }
  .grid--3 { grid-template-columns: 1fr; }
  .grid--4 { grid-template-columns: 1fr; }
}

@media (max-width: 420px) {
  :root { --gutter: 18px; }
  .site-brand__tagline { font-size: 10px; }
  .site-brand__name { font-size: 17px; }
  .site-brand__mark { width: 40px; height: 40px; font-size: 16px; }
}

/* ---------- 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;
  }
}