/* ==========================================================================
   乐优看台 · 共享样式 /assets/site.css
   墨绿夜场 + 蓝图网格 + 战术板框架导航
   ========================================================================== */

:root {
  --ink: #061512;
  --stand: #0B211C;
  --board: #12332B;
  --lime: #C7FF3D;
  --lime-soft: #DFFF85;
  --orange: #FF7A3C;
  --orange-soft: #FFB38A;
  --fog: #E8F1EA;
  --gray: #8FA39A;
  --line: #2E4A42;
  --glass: rgba(232, 241, 234, 0.08);
  --rail: 72px;
  --topbar: 74px;
  --page-max: 1320px;
  --gutter: clamp(16px, 3vw, 44px);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --font-serif: "Noto Serif SC", "Songti SC", "Source Han Serif SC", "SimSun", serif;
  --font-sans: "Noto 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, monospace;
}

/* ---------- reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

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

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

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
address { font-style: normal; }

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

::selection {
  background: var(--lime);
  color: #07130f;
}

/* ---------- body / blueprint ---------- */
body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--fog);
  background-color: var(--ink);
  background-image:
    radial-gradient(900px 520px at 78% -10%, rgba(199, 255, 61, 0.09), transparent 62%),
    linear-gradient(to right, rgba(46, 74, 66, 0.22) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(46, 74, 66, 0.22) 1px, transparent 1px);
  background-size: auto, 64px 64px, 64px 64px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
}

@media (min-width: 1024px) {
  body {
    padding-left: var(--rail);
    background-attachment: fixed, fixed, fixed;
  }
}

body.nav-open { overflow: hidden; }

/* ---------- skip link ---------- */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 999;
  padding: 10px 16px;
  background: var(--lime);
  color: #07130f;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  border-radius: 2px;
  transform: translateY(-160%);
  transition: transform 0.2s var(--ease);
}

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

/* ---------- progress ---------- */
.progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 90;
  background: rgba(46, 74, 66, 0.55);
  pointer-events: none;
}

.progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--lime) 0%, var(--lime-soft) 55%, var(--orange) 100%);
  will-change: transform;
}

/* ---------- header frame ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
}

.masthead__bar {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  height: var(--topbar);
  padding: 0 var(--gutter);
  background: rgba(6, 21, 18, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.masthead__brand {
  margin-right: auto;
  min-width: 0;
}

/* ---------- brand mark ---------- */
.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark__glyph {
  position: relative;
  flex: none;
  width: 34px;
  height: 34px;
  border: 1px solid var(--lime);
  border-radius: 2px;
  background: linear-gradient(135deg, rgba(199, 255, 61, 0.18), transparent 62%);
}

.brand-mark__glyph::before {
  content: "";
  position: absolute;
  left: 6px;
  right: 6px;
  top: 50%;
  height: 1px;
  background: var(--lime);
  transform: rotate(-32deg);
}

.brand-mark__glyph::after {
  content: "";
  position: absolute;
  top: 5px;
  right: 5px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
}

.brand-mark__text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1.1;
  min-width: 0;
}

.brand-mark__name {
  font-family: var(--font-serif);
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--fog);
  white-space: nowrap;
}

.brand-mark__line {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--gray);
  white-space: nowrap;
}

.masthead__brand:hover .brand-mark__line { color: var(--lime-soft); }

/* ---------- utility ---------- */
.masthead__utility {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 22px);
}

.util-link {
  padding: 6px 2px;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--gray);
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.util-link:hover,
.util-link:focus-visible {
  color: var(--lime-soft);
  border-bottom-color: var(--lime);
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.72em 1.35em;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.2;
  white-space: nowrap;
  transition: background 0.22s var(--ease), color 0.22s var(--ease),
    border-color 0.22s var(--ease), transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.btn--signal {
  background: var(--lime);
  border-color: var(--lime);
  color: #07130f;
}

.btn--signal:hover,
.btn--signal:focus-visible {
  background: var(--lime-soft);
  border-color: var(--lime-soft);
  transform: translateY(-1px);
  box-shadow: 0 10px 26px -14px rgba(199, 255, 61, 0.95);
}

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

.btn--ghost:hover,
.btn--ghost:focus-visible {
  color: var(--lime);
  border-color: var(--lime);
}

/* ---------- nav toggle ---------- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--glass);
  color: var(--fog);
  transition: border-color 0.2s var(--ease);
}

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

.nav-toggle__bars {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 18px;
  height: 14px;
}

.nav-toggle__bars span {
  display: block;
  height: 2px;
  background: var(--lime);
  transition: transform 0.22s var(--ease), opacity 0.18s var(--ease);
}

.nav-toggle__label {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.2em;
  color: var(--gray);
}

.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);
}

/* ---------- site nav : desktop frame rail ---------- */
.site-nav {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 70;
  width: var(--rail);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: calc(var(--topbar) + 24px) 0 20px;
  background: linear-gradient(180deg, #081b17 0%, #061512 62%);
  border-right: 1px solid var(--line);
  visibility: visible;
}

.site-nav__head {
  display: flex;
  justify-content: center;
  padding-bottom: 18px;
}

.site-nav__kicker {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.32em;
  color: var(--gray);
  text-transform: uppercase;
}

.site-nav__list {
  display: flex;
  flex-direction: column;
  width: 100%;
  overflow-y: auto;
  scrollbar-width: none;
}

.site-nav__list::-webkit-scrollbar { width: 0; height: 0; }

.nav-item { width: 100%; }

.nav-link {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 13px 4px;
  color: var(--gray);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.nav-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  bottom: 9px;
  width: 2px;
  background: var(--lime);
  transform: scaleY(0);
  transform-origin: 50% 0;
  transition: transform 0.24s var(--ease);
}

.nav-link__index {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  color: var(--line);
  transition: color 0.2s var(--ease);
}

.nav-link__label {
  writing-mode: vertical-rl;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.18em;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--fog);
  background: rgba(199, 255, 61, 0.05);
}

.nav-link:hover .nav-link__index { color: var(--orange); }

.nav-link[aria-current="page"] { color: var(--lime); }
.nav-link[aria-current="page"] .nav-link__index { color: var(--lime); }
.nav-link[aria-current="page"]::before { transform: scaleY(1); }

.site-nav__meta {
  display: none;
  margin-top: auto;
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  line-height: 1.7;
  color: var(--gray);
}

/* ---------- scrim ---------- */
.scrim {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 65;
  background: rgba(3, 10, 9, 0.68);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.24s var(--ease), visibility 0.24s var(--ease);
}

.scrim.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

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

.section {
  position: relative;
  padding-block: clamp(56px, 8vw, 104px);
}

.section + .section {
  border-top: 1px solid rgba(46, 74, 66, 0.5);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 28px);
}

.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-7 { grid-column: span 7; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: 1 / -1; }

@media (max-width: 960px) {
  .span-4, .span-5, .span-6, .span-7, .span-8 { grid-column: 1 / -1; }
}

/* ---------- typography ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--lime);
  transition: color 0.3s var(--ease);
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  transition: width 0.4s var(--ease);
}

.display {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.6rem, 3vw, 2.6rem);
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--fog);
}

.display--xl {
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  line-height: 1.12;
  letter-spacing: 0.01em;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--gray);
}

.lead {
  max-width: 62ch;
  font-size: clamp(1rem, 1.3vw, 1.12rem);
  line-height: 1.85;
  color: #c2d2c9;
}

.rule {
  height: 1px;
  border: 0;
  margin-block: clamp(24px, 4vw, 44px);
  background: linear-gradient(90deg, var(--line), transparent);
}

/* ---------- cards / panels / tags ---------- */
.card {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--stand);
  border: 1px solid var(--line);
  border-radius: 3px;
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.card:hover { border-color: rgba(199, 255, 61, 0.5); }

.glass-panel {
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--glass);
  border: 1px solid rgba(232, 241, 234, 0.14);
  border-radius: 3px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray);
}

.tag--signal {
  color: var(--lime);
  border-color: rgba(199, 255, 61, 0.5);
  background: rgba(199, 255, 61, 0.08);
}

.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 0 rgba(199, 255, 61, 0.55);
  animation: status-pulse 2.8s var(--ease) infinite;
}

.status-dot--orange {
  background: var(--orange);
  box-shadow: 0 0 0 0 rgba(255, 122, 60, 0.55);
  animation-name: status-pulse-orange;
}

@keyframes status-pulse {
  0% { box-shadow: 0 0 0 0 rgba(199, 255, 61, 0.55); }
  70% { box-shadow: 0 0 0 9px rgba(199, 255, 61, 0); }
  100% { box-shadow: 0 0 0 0 rgba(199, 255, 61, 0); }
}

@keyframes status-pulse-orange {
  0% { box-shadow: 0 0 0 0 rgba(255, 122, 60, 0.55); }
  70% { box-shadow: 0 0 0 9px rgba(255, 122, 60, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 122, 60, 0); }
}

/* ---------- media containers ---------- */
.media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--board);
  border: 1px solid var(--line);
  border-radius: 2px;
}

.media--tall { aspect-ratio: 3 / 4; }

.media--slant {
  clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
}

.media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}

.media:hover .media__img { transform: scale(1.02); }

.media__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fog);
  background: linear-gradient(0deg, rgba(4, 16, 13, 0.92), transparent);
}

/* ---------- breadcrumb ---------- */
.breadcrumb {
  padding-block: 18px 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--gray);
}

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

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

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

.breadcrumb__link {
  color: var(--gray);
  transition: color 0.2s var(--ease);
}

.breadcrumb__link:hover,
.breadcrumb__link:focus-visible { color: var(--lime); }

.breadcrumb__current { color: var(--fog); }

/* ---------- drawer ---------- */
.drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 85;
  width: min(380px, 92vw);
  display: flex;
  flex-direction: column;
  background: rgba(11, 33, 28, 0.96);
  border-left: 1px solid var(--line);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transform: translateX(102%);
  transition: transform 0.24s var(--ease);
}

.drawer[data-open],
.drawer.is-open { transform: translateX(0); }

.drawer__panel {
  flex: 1;
  overflow-y: auto;
  padding: clamp(20px, 3vw, 30px);
}

/* ---------- scroll protocol ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

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

[data-spy] {
  scroll-margin-top: calc(var(--topbar) + 24px);
}

[data-spy].is-current .eyebrow { color: var(--lime-soft); }
[data-spy].is-current .eyebrow::before { width: 48px; }

/* ---------- footer ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(60px, 9vw, 120px);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, #071915 0%, #04100d 100%);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(46, 74, 66, 0.3) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(46, 74, 66, 0.16) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px;
  opacity: 0.55;
  pointer-events: none;
}

.site-footer .container {
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: clamp(24px, 3vw, 48px);
  padding-block: clamp(44px, 7vw, 84px) clamp(28px, 4vw, 48px);
}

.footer-brand__mark {
  display: inline-block;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-serif);
  font-size: 1.32rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--fog);
}

.footer-brand__mark span {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.24em;
  color: var(--lime);
}

.footer-brand__mark:hover { border-bottom-color: var(--lime); }

.footer-brand__summary {
  margin-top: 18px;
  max-width: 40ch;
  font-size: 0.9rem;
  line-height: 1.85;
  color: #a9bdb3;
}

.footer-status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--gray);
}

.footer-col__title {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gray);
}

.footer-links {
  display: grid;
  gap: 10px;
}

.footer-link {
  font-size: 0.9rem;
  line-height: 1.7;
  color: #c4d3cb;
  word-break: break-all;
  transition: color 0.2s var(--ease);
}

.footer-link:hover,
.footer-link:focus-visible { color: var(--lime); }

.footer-address {
  margin-top: 14px;
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--gray);
}

.footer-hours {
  padding-block: 18px;
  border-top: 1px solid rgba(46, 74, 66, 0.6);
  font-size: 0.78rem;
  line-height: 1.8;
  color: var(--gray);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 18px 30px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--gray);
}

.footer-legal__copy,
.footer-legal__icp { color: var(--gray); }

.footer-legal__icp { color: #6f8a80; }

/* ==========================================================================
   响应式：平板与手机
   ========================================================================== */
@media (max-width: 1023px) {
  .nav-toggle { display: inline-flex; }

  .masthead__bar { padding-inline: clamp(14px, 4vw, 22px); }

  .site-nav {
    top: calc(var(--topbar) + 3px);
    bottom: 0;
    left: 0;
    right: auto;
    width: min(86vw, 340px);
    align-items: stretch;
    padding: 22px clamp(16px, 4vw, 22px) 26px;
    background: rgba(9, 26, 22, 0.97);
    border-right: 1px solid var(--line);
    border-top: 1px solid var(--line);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    overflow-y: auto;
    z-index: 80;
    transform: translateX(-104%);
    visibility: hidden;
    transition: transform 0.28s var(--ease), visibility 0.28s var(--ease);
  }

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

  .site-nav__head {
    justify-content: flex-start;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(46, 74, 66, 0.7);
  }

  .site-nav__kicker {
    writing-mode: horizontal-tb;
    font-size: 0.62rem;
    letter-spacing: 0.28em;
    color: var(--lime);
  }

  .site-nav__list { overflow: visible; }

  .nav-item { border-bottom: 1px solid rgba(46, 74, 66, 0.55); }

  .nav-link {
    flex-direction: row;
    align-items: baseline;
    justify-content: flex-start;
    gap: 14px;
    padding: 15px 8px;
  }

  .nav-link::before {
    top: 0;
    bottom: 0;
    left: 0;
    width: 2px;
    transform: scaleY(0);
  }

  .nav-link__index { font-size: 0.64rem; color: var(--gray); }

  .nav-link__label {
    writing-mode: horizontal-tb;
    font-size: 0.96rem;
    letter-spacing: 0.1em;
  }

  .site-nav__meta {
    display: block;
    padding-top: 22px;
    border-top: 1px solid rgba(46, 74, 66, 0.55);
  }

  .scrim { display: block; }

  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .masthead__utility .util-link { display: none; }
  .masthead__utility { gap: 8px; }
  .btn { padding: 0.62em 1em; font-size: 0.76rem; letter-spacing: 0.06em; }
  .brand-mark__line { display: none; }
  .nav-toggle__label { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-legal { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 420px) {
  .brand-mark__name { font-size: 1rem; letter-spacing: 0.06em; }
  .brand-mark__glyph { width: 30px; height: 30px; }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

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