/* ============================================================
   凡国中心 — /assets/site.css
   共享外壳：reset / tokens / 中文排版 / 页头 / 页脚 / 基础组件
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 128px;
}

body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, li, figure, figcaption,
blockquote, dl, dt, dd { margin: 0; padding: 0; }

ul, ol { list-style: none; }

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

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

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

a { color: inherit; text-decoration: none; }

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

hr { border: 0; border-top: 1px solid var(--grid-line); }

/* ---------- 2. Tokens ---------- */
:root {
  --indigo: #16224A;
  --indigo-deep: #0C1430;
  --indigo-mid: #2C3E7A;

  --cream: #F5F0E6;
  --paper: #FBF8F2;

  --amber: #E08A32;
  --amber-soft: #F2B15E;

  --celadon: #2F7D6E;
  --celadon-soft: #7FBFAE;

  --ink: #221C18;
  --ink-soft: #6B6058;
  --grid-line: #C9C2B4;
  --grid-faint: rgba(201, 194, 180, 0.34);

  --alert: #C0472B;

  --line-cream: rgba(245, 240, 230, 0.18);
  --line-cream-strong: rgba(245, 240, 230, 0.32);

  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Source Han Sans SC", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas,
    "Liberation Mono", "Courier New", monospace;

  --wrap-max: 1280px;
  --gap: 24px;
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);

  --header-h: 96px;
}

/* ---------- 3. Base ---------- */
body {
  background-color: var(--cream);
  background-image:
    linear-gradient(to right, var(--grid-faint) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-faint) 1px, transparent 1px);
  background-size: 64px 64px;
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.85;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

@media (max-width: 899px) {
  body { background-size: 40px 40px; }
}

/* ---------- 4. Focus ---------- */
:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.site-header :focus-visible,
.site-footer :focus-visible,
.local-dock:focus-visible {
  outline: 2px solid var(--amber-soft);
  outline-offset: 2px;
}

/* ---------- 5. Utilities ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap-max);
  margin: 0 auto;
  padding: 0 20px;
}

@media (min-width: 768px) {
  .wrap { padding: 0 32px; }
}

@media (min-width: 1200px) {
  .wrap { padding: 0 40px; }
}

.section { padding: 52px 0; }

@media (min-width: 1024px) {
  .section { padding: 76px 0; }
}

.section--tight { padding: 32px 0; }

@media (min-width: 1024px) {
  .section--tight { padding: 44px 0; }
}

.section--dark {
  background-color: var(--indigo);
  background-image:
    linear-gradient(to right, rgba(245, 240, 230, 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(245, 240, 230, 0.055) 1px, transparent 1px);
  background-size: 48px 48px;
  color: var(--cream);
}

.section--dark .meta { color: var(--celadon-soft); }

.section--paper {
  background-color: var(--paper);
  border-top: 1px solid var(--grid-line);
  border-bottom: 1px solid var(--grid-line);
}

/* ---------- 6. Typography ---------- */
.display {
  font-size: clamp(44px, 7vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  font-weight: 600;
}

.section-title {
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 800;
}

.subtitle {
  font-size: 20px;
  line-height: 1.45;
  font-weight: 700;
}

.meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  line-height: 1.6;
}

.accent-amber { color: var(--amber); }
.accent-celadon { color: var(--celadon); }
.muted { color: var(--ink-soft); }

.section--dark .display,
.section--dark .section-title,
.section--dark .subtitle { color: var(--paper); }

.prose {
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink);
}

.prose p + p { margin-top: 1.1em; }

.prose h2 {
  margin: 2em 0 0.7em;
  font-size: 24px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.prose h3 {
  margin: 1.6em 0 0.5em;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
}

.prose ul,
.prose ol {
  margin: 1em 0;
  padding-left: 1.35em;
  list-style: disc;
}

.prose ol { list-style: decimal; }

.prose li { margin: 0.4em 0; }

.prose a {
  color: var(--celadon);
  border-bottom: 1px solid var(--celadon-soft);
}

.prose a:hover { color: var(--celadon-soft); }

.section--dark .prose { color: rgba(245, 240, 230, 0.86); }

/* ---------- 7. Grid ---------- */
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 640px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid { gap: var(--gap); }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

@media (min-width: 1024px) {
  .split {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 40px;
    align-items: start;
  }
}

/* ---------- 8. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
  border: 1px solid transparent;
  transition: background-color 0.18s var(--ease),
    color 0.18s var(--ease),
    border-color 0.18s var(--ease);
}

.btn--primary {
  background: var(--amber);
  color: var(--indigo-deep);
  border-color: var(--amber);
}

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

.btn--celadon {
  background: var(--celadon);
  color: var(--paper);
  border-color: var(--celadon);
}

.btn--celadon:hover {
  background: var(--celadon-soft);
  border-color: var(--celadon-soft);
  color: var(--indigo-deep);
}

.btn--outline {
  background: transparent;
  color: var(--indigo);
  border-color: var(--indigo);
}

.btn--outline:hover {
  background: var(--indigo);
  color: var(--paper);
}

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

.btn--ghost:hover {
  border-color: var(--amber-soft);
  color: var(--amber-soft);
}

.btn[aria-disabled="true"] {
  opacity: 0.45;
  pointer-events: none;
}

/* ---------- 9. Breadcrumb ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

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

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

.breadcrumb a {
  color: var(--ink-soft);
  transition: color 0.18s var(--ease);
}

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

.section--dark .breadcrumb,
.section--dark .breadcrumb a { color: rgba(245, 240, 230, 0.6); }

/* ---------- 10. Card / Tag / Stat ---------- */
.card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--grid-line);
  padding: 22px 20px;
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.card:hover {
  border-color: var(--amber);
  transform: translateY(-2px);
}

.card--celadon:hover { border-color: var(--celadon); }

.card__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--amber);
  display: block;
}

.card__title {
  margin: 8px 0 6px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
}

.card__text {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  line-height: 1.6;
  border: 1px solid currentColor;
}

.tag--amber { color: var(--amber); }
.tag--celadon { color: var(--celadon); }
.tag--alert { color: var(--alert); }

.tag--solid-amber {
  background: var(--amber);
  color: var(--indigo-deep);
  border-color: var(--amber);
}

.tag--solid-celadon {
  background: var(--celadon);
  color: var(--paper);
  border-color: var(--celadon);
}

.stat {
  background: var(--paper);
  border: 1px solid var(--grid-line);
  padding: 18px 16px;
}

.stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--indigo);
}

.stat__label {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}

/* ---------- 11. Timeline ---------- */
.tl {
  display: grid;
  border-top: 1px solid var(--grid-line);
}

.tl__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--grid-line);
  transition: background-color 0.18s var(--ease);
}

.tl__row:hover { background: var(--paper); }

@media (min-width: 768px) {
  .tl__row {
    grid-template-columns: 120px 110px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

.tl__date,
.tl__ver {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

.tl__ver { color: var(--celadon); }

.tl__text { font-size: 15.5px; line-height: 1.75; }

/* ---------- 12. Figure ---------- */
.figure {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--indigo-mid);
  border: 1px solid var(--grid-line);
  aspect-ratio: 16 / 9;
}

.figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.03);
}

.figure--square { aspect-ratio: 1 / 1; }
.figure--portrait { aspect-ratio: 3 / 4; }
.figure--tall { aspect-ratio: 2 / 3; }
.figure--wide { aspect-ratio: 21 / 9; }
.figure--plain { border: 0; }

.figure__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 11px;
  background: var(--indigo-deep);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.6;
}

.figure__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(245, 240, 230, 0.22) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(245, 240, 230, 0.22) 1px, transparent 1px);
  background-size: 32px 32px;
}

/* ---------- 13. Skip link ---------- */
.skip-link {
  position: absolute;
  top: -120px;
  left: 16px;
  z-index: 300;
  padding: 10px 18px;
  background: var(--amber);
  color: var(--indigo-deep);
  font-size: 14px;
  font-weight: 700;
  transition: top 0.18s var(--ease);
}

.skip-link:focus {
  top: 12px;
  outline: 2px solid var(--indigo);
  outline-offset: 2px;
}

/* ---------- 14. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  color: var(--cream);
  background-color: var(--indigo);
  background-image:
    linear-gradient(to right, rgba(245, 240, 230, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(245, 240, 230, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  border-bottom: 1px solid var(--line-cream);
}

.masthead {
  background: var(--indigo-deep);
  border-bottom: 1px solid var(--line-cream);
}

.masthead__inner {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 46px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  flex: 0 0 auto;
  padding: 10px 0;
}

.brand__mark {
  position: relative;
  padding-left: 15px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.brand__mark::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 7px;
  height: 7px;
  margin-top: -4px;
  background: var(--amber);
  transition: background-color 0.18s var(--ease);
}

.brand:hover .brand__mark::before { background: var(--amber-soft); }

.brand__sub {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--celadon-soft);
  transition: color 0.18s var(--ease);
}

.brand:hover .brand__sub { color: var(--paper); }

/* 状态读数条 */
.statusbar {
  display: none;
  align-items: center;
  margin-left: auto;
  max-width: 62%;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: rgba(245, 240, 230, 0.62);
}

.statusbar::-webkit-scrollbar { display: none; }

@media (min-width: 900px) {
  .statusbar { display: flex; }
}

.statusbar__item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 14px;
  white-space: nowrap;
  border-left: 1px solid var(--line-cream);
  line-height: 1.6;
}

.statusbar__item:first-child {
  border-left: 0;
  padding-left: 0;
}

.dot {
  display: inline-block;
  flex: none;
  width: 6px;
  height: 6px;
  background: var(--grid-line);
}

.statusbar__item--amber .dot { background: var(--amber); }
.statusbar__item--celadon .dot { background: var(--celadon-soft); }

/* 移动端导航按钮 */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-left: auto;
  margin-right: -2px;
  padding: 8px 13px;
  border: 1px solid rgba(245, 240, 230, 0.34);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  line-height: 1.6;
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.nav-toggle:hover {
  border-color: var(--amber-soft);
  background: var(--indigo-mid);
}

.nav-toggle__bars {
  display: grid;
  gap: 3px;
  width: 15px;
}

.nav-toggle__bars span {
  display: block;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.18s var(--ease), opacity 0.18s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) {
  transform: translateY(4.5px) 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(-4.5px) rotate(-45deg);
}

@media (min-width: 900px) {
  .nav-toggle { display: none; }
}

/* 主栏目带 */
.nav-band {
  display: none;
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  max-height: calc(100vh - 90px);
  overflow-y: auto;
  background-color: var(--indigo);
  border-top: 1px solid var(--line-cream);
  border-bottom: 1px solid var(--line-cream);
}

.nav-band[data-open] { display: block; }

.nav-list {
  display: flex;
  flex-direction: column;
}

.nav-list > li + li { border-top: 1px solid var(--line-cream); }

.nav-list a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 15px 20px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  color: rgba(245, 240, 230, 0.76);
  border-left: 3px solid transparent;
  transition: color 0.18s var(--ease),
    background-color 0.18s var(--ease),
    border-color 0.18s var(--ease);
}

.nav-list a:hover {
  color: var(--paper);
  background: var(--indigo-mid);
  border-left-color: var(--amber-soft);
}

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

.nav-list__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--amber-soft);
}

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

@media (min-width: 900px) {
  .nav-band {
    display: block;
    position: static;
    max-height: none;
    overflow: visible;
    border-top: 0;
    border-bottom: 0;
    background-image:
      linear-gradient(to right, rgba(245, 240, 230, 0.045) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(245, 240, 230, 0.045) 1px, transparent 1px);
    background-size: 48px 48px;
  }

  .nav-list {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .nav-list > li + li { border-top: 0; }

  .nav-list a {
    padding: 14px 17px 11px;
    border-left: 0;
    border-bottom: 3px solid transparent;
  }

  .nav-list a:hover {
    border-left-color: transparent;
    border-bottom-color: var(--amber-soft);
  }

  .nav-list a[aria-current="page"] {
    border-left-color: transparent;
    border-bottom-color: var(--amber);
  }
}

/* 滚动进度条 */
.rail {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 2px;
  background: var(--amber);
  pointer-events: none;
  transition: width 0.1s linear;
}

/* 本地专区悬浮入口 */
.local-dock {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 70;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 16px;
  background: var(--celadon);
  color: var(--paper);
  border: 1px solid var(--celadon-soft);
  line-height: 1.4;
  transition: background-color 0.18s var(--ease),
    color 0.18s var(--ease),
    border-color 0.18s var(--ease);
}

.local-dock__label {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.local-dock__meta {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  opacity: 0.85;
}

.local-dock:hover {
  background: var(--celadon-soft);
  color: var(--indigo-deep);
  border-color: var(--indigo);
}

@media (max-width: 899px) {
  body { padding-bottom: 46px; }

  .local-dock {
    left: 0;
    right: 0;
    bottom: 0;
    top: auto;
    flex-direction: row;
    justify-content: center;
    align-items: baseline;
    gap: 9px;
    padding: 11px 16px;
    border-left: 0;
    border-right: 0;
    border-bottom: 0;
  }
}

/* ---------- 15. Footer ---------- */
.site-footer {
  position: relative;
  background-color: var(--indigo-deep);
  background-image:
    linear-gradient(to right, rgba(245, 240, 230, 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(245, 240, 230, 0.055) 1px, transparent 1px);
  background-size: 48px 48px;
  color: rgba(245, 240, 230, 0.74);
  border-top: 1px solid var(--line-cream);
  padding: 52px 0 30px;
  font-size: 14.5px;
  line-height: 1.8;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px 26px;
}

@media (min-width: 640px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.55fr 1fr 1fr 1.25fr;
    gap: 26px;
  }
}

.footer-brand {
  position: relative;
  padding-left: 15px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.05em;
  line-height: 1.3;
  color: var(--paper);
}

.footer-brand::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 7px;
  height: 7px;
  background: var(--amber);
}

.footer-tagline {
  margin-top: 12px;
  max-width: 34ch;
  color: rgba(245, 240, 230, 0.66);
}

.footer-mark {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--celadon-soft);
}

.footer-head {
  margin-bottom: 13px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line-cream);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--amber-soft);
}

.footer-nav li { padding: 3px 0; }

.footer-nav a {
  display: inline-block;
  color: rgba(245, 240, 230, 0.74);
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: background-size 0.18s var(--ease), color 0.18s var(--ease);
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: var(--paper);
  background-size: 100% 1px;
}

.footer-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 10px;
  padding: 3px 0;
}

.footer-key {
  flex: 0 0 auto;
  min-width: 56px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--celadon-soft);
}

.footer-val {
  color: rgba(245, 240, 230, 0.86);
  word-break: break-all;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 6px 0 4px;
  padding: 5px 11px;
  border: 1px solid var(--line-cream-strong);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.6;
  color: var(--amber-soft);
  transition: border-color 0.18s var(--ease),
    background-color 0.18s var(--ease),
    color 0.18s var(--ease);
}

.copy-btn:hover {
  border-color: var(--amber);
  background: var(--amber);
  color: var(--indigo-deep);
}

.copy-btn[data-copied="true"] {
  border-color: var(--celadon-soft);
  background: transparent;
  color: var(--celadon-soft);
}

.footer-note {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(245, 240, 230, 0.52);
  max-width: 30ch;
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 26px;
  margin-top: 42px;
  padding-top: 18px;
  border-top: 1px solid var(--line-cream);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: rgba(245, 240, 230, 0.5);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-left: auto;
}

.footer-legal a {
  color: rgba(245, 240, 230, 0.66);
  transition: color 0.18s var(--ease);
}

.footer-legal a:hover { color: var(--amber-soft); }

/* ---------- 16. To top ---------- */
.to-top {
  position: fixed;
  right: 26px;
  bottom: 104px;
  z-index: 65;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 14px;
  background: var(--indigo);
  color: var(--cream);
  border: 1px solid var(--line-cream-strong);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.6;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.2s var(--ease),
    transform 0.2s var(--ease),
    visibility 0.2s,
    border-color 0.18s var(--ease),
    color 0.18s var(--ease);
}

.to-top[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.to-top:hover {
  border-color: var(--amber);
  color: var(--amber-soft);
}

@media (max-width: 899px) {
  .to-top { display: none; }
}

/* ---------- 17. Reveal ---------- */
.has-js [data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}

.has-js [data-reveal="shown"] {
  opacity: 1;
  transform: none;
}

/* ---------- 18. 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;
  }

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