/* ==========================================================================
   OceanAstra — site stylesheet
   Written with CSS logical properties throughout so that a single stylesheet
   serves both LTR (en, zh) and RTL (ar) without a separate RTL build.
   Never use left/right here — use inline-start/inline-end.
   ========================================================================== */

/* --------------------------------------------------------------- tokens -- */
:root {
  --ocean-950: #04121f;
  --ocean-900: #072033;
  --ocean-800: #0b2e4a;
  --ocean-700: #0f3f63;
  --ocean-600: #12557f;
  --ocean-500: #1a6fa3;
  --astra:     #4fc3d9;
  --astra-dim: #2b8ba3;
  --gold:      #d9a441;

  --ink:       #0c1b2a;
  --body:      #3d5163;
  --muted:     #64798c;
  --line:      #dde5ec;
  --line-soft: #eaf0f5;
  --mist:      #f5f8fa;
  --paper:     #ffffff;

  --radius:    14px;
  --radius-sm: 9px;
  --shadow:    0 1px 2px rgba(7, 32, 51, .05), 0 12px 32px -18px rgba(7, 32, 51, .35);
  --shadow-lg: 0 2px 4px rgba(7, 32, 51, .06), 0 26px 60px -28px rgba(7, 32, 51, .45);

  --wrap:      1180px;
  --gutter:    clamp(20px, 5vw, 44px);
  --section:   clamp(64px, 9vw, 112px);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

html[lang^="zh"] {
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
}

html[lang="ar"] {
  --font: "SF Arabic", "Geeza Pro", "Noto Naskh Arabic", "Segoe UI",
          Tahoma, "Traditional Arabic", sans-serif;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-block-start: 88px;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--body);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Arabic script sits lower and needs more leading to stay legible. */
html[lang="ar"] body { font-size: 17.5px; line-height: 1.85; }

img, svg { max-inline-size: 100%; block-size: auto; display: block; }

h1, h2, h3, h4 {
  color: var(--ink);
  line-height: 1.2;
  margin-block: 0 .5em;
  font-weight: 640;
  letter-spacing: -.015em;
}
html[lang="ar"] h1, html[lang="ar"] h2,
html[lang="ar"] h3, html[lang="ar"] h4 { letter-spacing: 0; line-height: 1.45; }

h1 { font-size: clamp(2.05rem, 1.35rem + 2.6vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 1.2rem + 1.5vw, 2.3rem); }
h3 { font-size: clamp(1.15rem, 1.02rem + .45vw, 1.35rem); }

p { margin-block: 0 1.1em; }
p:last-child { margin-block-end: 0; }

a { color: var(--ocean-600); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ocean-500); }

ul { margin-block: 0 1.1em; padding-inline-start: 1.25em; }
li { margin-block-end: .5em; }
li:last-child { margin-block-end: 0; }

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

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

.section { padding-block: var(--section); }
.section--mist { background: var(--mist); border-block: 1px solid var(--line-soft); }
.section--tight { padding-block: clamp(48px, 6vw, 76px); }

.skip-link {
  position: absolute;
  inset-block-start: -100px;
  inset-inline-start: var(--gutter);
  z-index: 100;
  background: var(--ocean-900);
  color: #fff;
  padding: 12px 20px;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  text-decoration: none;
}
.skip-link:focus { inset-block-start: 0; color: #fff; }

/* --------------------------------------------------------------- header -- */
.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-block-end: 1px solid var(--line-soft);
}
.site-header > .wrap { position: relative; }

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-block-size: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 660;
  font-size: 1.16rem;
  letter-spacing: -.02em;
  flex: none;
}
.brand:hover { color: var(--ocean-700); }
.brand svg { inline-size: 32px; block-size: 32px; flex: none; }
.brand-name { white-space: nowrap; }

.header-spacer { flex: 1 1 auto; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  display: inline-block;
  padding: 8px 13px;
  border-radius: var(--radius-sm);
  color: var(--body);
  text-decoration: none;
  font-size: .965rem;
  font-weight: 520;
  white-space: nowrap;
  transition: background-color .15s ease, color .15s ease;
}
.nav a:hover { background: var(--mist); color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ocean-600); font-weight: 620; }

/* language switch */
.lang {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  flex: none;
}
.lang a {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: .845rem;
  font-weight: 560;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .15s ease, color .15s ease;
}
.lang a:hover { color: var(--ink); background: var(--mist); }
.lang a[aria-current="true"] { background: var(--ocean-800); color: #fff; }

/* mobile menu toggle */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  inline-size: 42px;
  block-size: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
}
.nav-toggle svg { inline-size: 20px; block-size: 20px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }
.nav-toggle[aria-expanded="true"] .icon-open  { display: none; }

@media (max-width: 940px) {
  .header-spacer { display: none; }
  .header-inner {
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 10px;
    padding-block: 12px;
  }

  /* Baseline, no JavaScript: the nav simply sits below the brand and wraps.
     Every link stays reachable even if the script never loads. */
  .nav { inline-size: 100%; flex-wrap: wrap; gap: 2px; }
  .nav a { padding: 8px 11px; }
  .lang { margin-inline-start: auto; }

  /* Enhanced, once JS is confirmed: collapse into a disclosure menu. */
  html.js .nav-toggle { display: inline-flex; }
  html.js .nav {
    display: none;
    position: absolute;
    inset-block-start: 100%;
    inset-inline: 0;
    inline-size: auto;
    flex-direction: column;
    align-items: stretch;
    padding: 12px var(--gutter) 20px;
    background: var(--paper);
    border-block-end: 1px solid var(--line);
    box-shadow: var(--shadow);
  }
  html.js .nav[data-open="true"] { display: flex; }
  html.js .nav a { padding: 12px 14px; font-size: 1.02rem; }
  html.js .lang { align-self: flex-start; margin-block-start: 10px; margin-inline-start: 0; }
}

/* ----------------------------------------------------------------- hero -- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(900px 520px at 78% -10%, rgba(79, 195, 217, .26), transparent 62%),
    radial-gradient(680px 420px at 12% 108%, rgba(26, 111, 163, .34), transparent 60%),
    linear-gradient(168deg, var(--ocean-900) 0%, var(--ocean-950) 100%);
  color: #dce8f2;
  padding-block: clamp(72px, 11vw, 132px);
}

/* faint star field, drawn with layered radial gradients (no image request) */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 22%, rgba(255,255,255,.55), transparent),
    radial-gradient(1.2px 1.2px at 68% 14%, rgba(255,255,255,.42), transparent),
    radial-gradient(1.6px 1.6px at 84% 62%, rgba(255,255,255,.35), transparent),
    radial-gradient(1.1px 1.1px at 32% 74%, rgba(255,255,255,.40), transparent),
    radial-gradient(1.3px 1.3px at 52% 38%, rgba(255,255,255,.30), transparent),
    radial-gradient(1.1px 1.1px at 92% 28%, rgba(255,255,255,.34), transparent),
    radial-gradient(1.2px 1.2px at 22% 52%, rgba(255,255,255,.26), transparent);
  pointer-events: none;
}

.hero > .wrap { position: relative; }
.hero--page { padding-block: clamp(58px, 8vw, 92px); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-block-end: 20px;
  font-size: .8rem;
  font-weight: 620;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--astra);
}
html[lang="ar"] .eyebrow { letter-spacing: 0; text-transform: none; font-size: .875rem; }
.eyebrow::before {
  content: "";
  inline-size: 22px;
  block-size: 1px;
  background: var(--astra);
  opacity: .7;
  flex: none;
}

.hero h1 { color: #fff; max-inline-size: 19ch; margin-block-end: .55em; }
.hero--page h1 { max-inline-size: 22ch; }

.hero .lede {
  max-inline-size: 62ch;
  font-size: clamp(1.03rem, .98rem + .3vw, 1.2rem);
  color: #b9cede;
  margin-block-end: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-block-start: 36px;
}
/* Stacked buttons of differing label length look untidy at unequal widths. */
@media (max-width: 560px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { inline-size: 100%; }
}

/* credential strip under the hero */
.credentials {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 34px;
  margin-block-start: 48px;
  padding-block-start: 28px;
  border-block-start: 1px solid rgba(255, 255, 255, .14);
}
.credentials li {
  list-style: none;
  margin: 0;
  font-size: .93rem;
  color: #9fb8cb;
  display: flex;
  align-items: center;
  gap: 9px;
}
.credentials li::before {
  content: "";
  inline-size: 5px;
  block-size: 5px;
  border-radius: 50%;
  background: var(--astra);
  flex: none;
}
.credentials { padding-inline-start: 0; }

/* --------------------------------------------------------------- button -- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 24px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: .98rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: transform .14s ease, background-color .14s ease,
              border-color .14s ease, color .14s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary { background: var(--astra); color: var(--ocean-950); }
.btn--primary:hover { background: #66d2e6; color: var(--ocean-950); }

.btn--ghost {
  background: transparent;
  color: #dce8f2;
  border-color: rgba(255, 255, 255, .3);
}
.btn--ghost:hover { background: rgba(255, 255, 255, .09); color: #fff; border-color: rgba(255,255,255,.5); }

.btn--dark { background: var(--ocean-800); color: #fff; }
.btn--dark:hover { background: var(--ocean-700); color: #fff; }

.btn--outline { background: var(--paper); color: var(--ink); border-color: var(--line); }
.btn--outline:hover { border-color: var(--ocean-500); color: var(--ocean-600); }

/* ------------------------------------------------------- section header -- */
.section-head { max-inline-size: 64ch; margin-block-end: clamp(36px, 5vw, 56px); }
.section-head .eyebrow { color: var(--ocean-500); }
.section-head .eyebrow::before { background: var(--ocean-500); }
.section-head .lede { font-size: 1.08rem; color: var(--muted); margin-block-end: 0; }
.section-head h2 { margin-block-end: .45em; }

/* --------------------------------------------------------------- grids --- */
.grid { display: grid; gap: clamp(18px, 2.4vw, 26px); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1000px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------------- cards -- */
.card {
  display: flex;
  flex-direction: column;
  padding: clamp(24px, 2.6vw, 34px);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.card:hover { border-color: #c6d5e2; box-shadow: var(--shadow); transform: translateY(-2px); }

/* Number and status badge share one row, so the headings of sibling cards
   stay on the same baseline whether or not a card carries a badge. */
.card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin-block-end: 14px;
  min-block-size: 22px;
}
.card-number {
  font-size: .82rem;
  font-weight: 680;
  letter-spacing: .1em;
  color: var(--astra-dim);
  margin: 0;
}
.card h3 { margin-block-end: .5em; }
.card h3 a { color: inherit; text-decoration: none; }
.card h3 a:hover { color: var(--ocean-600); text-decoration: underline; }
.card .summary { color: var(--body); margin-block-end: 20px; }

.card-points { padding-inline-start: 0; margin-block: 0; list-style: none; }
.card-points li {
  position: relative;
  padding-inline-start: 22px;
  margin-block-end: 11px;
  font-size: .935rem;
  color: var(--muted);
  line-height: 1.55;
}
html[lang="ar"] .card-points li { line-height: 1.75; }
.card-points li::before {
  content: "";
  position: absolute;
  inset-inline-start: 4px;
  inset-block-start: .62em;
  inline-size: 5px;
  block-size: 5px;
  border-radius: 50%;
  background: var(--astra);
}

.badge {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: 7px;
  padding: 4px 11px;
  border-radius: 999px;
  background: rgba(217, 164, 65, .13);
  color: #97671a;
  font-size: .77rem;
  font-weight: 650;
  letter-spacing: .02em;
}
.badge::before {
  content: "";
  inline-size: 6px;
  block-size: 6px;
  border-radius: 50%;
  background: var(--gold);
  flex: none;
}

/* ---------------------------------------------------------------- steps -- */
.step { padding-block-start: 22px; border-block-start: 2px solid var(--line); }
.step-number {
  font-size: .8rem;
  font-weight: 680;
  letter-spacing: .1em;
  color: var(--ocean-500);
  margin-block-end: 10px;
}
.step h3 { font-size: 1.1rem; margin-block-end: .45em; }
.step p { font-size: .935rem; color: var(--muted); line-height: 1.6; }
html[lang="ar"] .step p { line-height: 1.8; }

/* ------------------------------------------------------ solution detail -- */
.detail { padding-block: clamp(52px, 6.5vw, 84px); border-block-start: 1px solid var(--line-soft); }
/* The enclosing .section already supplies the outer rhythm — don't double it. */
.detail:first-of-type { border-block-start: 0; padding-block-start: 0; }
.detail:last-of-type { padding-block-end: 0; }

.detail-head { max-inline-size: 68ch; margin-block-end: clamp(30px, 4vw, 44px); }
.detail-head .card-number { color: var(--ocean-500); }
.detail-head .card-meta { margin-block-end: 16px; }
.detail-head .lede {
  font-size: 1.1rem;
  color: var(--ink);
  font-weight: 520;
  margin-block-end: 1.1em;
}
.detail-head p { color: var(--muted); }

.detail-groups { display: grid; gap: clamp(18px, 2.4vw, 26px); grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1000px) { .detail-groups { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 680px)  { .detail-groups { grid-template-columns: 1fr; } }

/* A section with a single group spans the full width; its list then splits
   into two text columns so the line length stays readable. */
.detail-groups--single { grid-template-columns: 1fr; }
.detail-groups--single ul { columns: 2; column-gap: clamp(28px, 4vw, 56px); }
.detail-groups--single li { break-inside: avoid; }
@media (max-width: 680px) { .detail-groups--single ul { columns: 1; } }

.group {
  padding: clamp(22px, 2.4vw, 30px);
  background: var(--mist);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}
.group h3 {
  font-size: 1rem;
  margin-block-end: .9em;
  padding-block-end: .8em;
  border-block-end: 1px solid var(--line);
}
.group ul { padding-inline-start: 0; list-style: none; margin-block-end: 0; }
.group li {
  position: relative;
  padding-inline-start: 20px;
  margin-block-end: 11px;
  font-size: .92rem;
  color: var(--muted);
  line-height: 1.55;
}
html[lang="ar"] .group li { line-height: 1.78; }
.group li::before {
  content: "";
  position: absolute;
  inset-inline-start: 3px;
  inset-block-start: .6em;
  inline-size: 5px;
  block-size: 5px;
  border-radius: 50%;
  background: var(--ocean-500);
  opacity: .55;
}

.note {
  margin-block-start: 26px;
  padding: 16px 20px;
  border-inline-start: 3px solid var(--astra);
  background: var(--mist);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: .92rem;
  color: var(--muted);
}
html[dir="rtl"] .note { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }

/* ------------------------------------------------------------- prose ----- */
.prose { max-inline-size: 74ch; }
.prose .updated {
  display: inline-block;
  margin-block-end: 28px;
  padding: 5px 13px;
  border-radius: 999px;
  background: var(--mist);
  border: 1px solid var(--line);
  font-size: .85rem;
  color: var(--muted);
}
.prose .intro {
  font-size: 1.08rem;
  color: var(--ink);
  padding-block-end: 28px;
  margin-block-end: 8px;
  border-block-end: 1px solid var(--line);
}
.prose h2 {
  font-size: 1.22rem;
  margin-block: 2.2em .8em;
  padding-block-end: 0;
}
.prose h2:first-of-type { margin-block-start: 1.6em; }
.prose ul { padding-inline-start: 0; list-style: none; }
.prose ul li {
  position: relative;
  padding-inline-start: 22px;
  margin-block-end: .7em;
}
.prose ul li::before {
  content: "";
  position: absolute;
  inset-inline-start: 4px;
  inset-block-start: .68em;
  inline-size: 5px;
  block-size: 5px;
  border-radius: 50%;
  background: var(--ocean-500);
  opacity: .5;
}

/* ------------------------------------------------------------ fact list -- */
.facts { border-block-start: 1px solid var(--line); }
.fact {
  display: grid;
  grid-template-columns: minmax(180px, 260px) 1fr;
  gap: 8px 32px;
  padding-block: 17px;
  border-block-end: 1px solid var(--line);
}
.fact dt { font-size: .93rem; color: var(--muted); }
.fact dd { margin: 0; color: var(--ink); font-weight: 520; }
.fact dd a { font-weight: 520; }
@media (max-width: 640px) {
  .fact { grid-template-columns: 1fr; gap: 3px; padding-block: 15px; }
  .fact dt { font-size: .84rem; }
}

/* ------------------------------------------------------- contact cards -- */
.contact-card {
  display: flex;
  flex-direction: column;
  padding: clamp(24px, 2.6vw, 32px);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.contact-card h3 { font-size: 1.05rem; margin-block-end: .5em; }
.contact-card p { font-size: .93rem; color: var(--muted); margin-block-end: 18px; }
.contact-card .contact-link {
  margin-block: auto 0;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--ocean-600);
  text-decoration: none;
  overflow-wrap: anywhere;
}
.contact-card .contact-link:hover { text-decoration: underline; }

.office {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: clamp(22px, 3vw, 40px);
  padding: clamp(26px, 3vw, 40px);
  background: var(--mist);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}
.office-item h4 {
  font-size: .8rem;
  font-weight: 640;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--muted);
  margin-block-end: .8em;
}
html[lang="ar"] .office-item h4 { letter-spacing: 0; text-transform: none; font-size: .88rem; }
.office-item p, .office-item address {
  font-style: normal;
  color: var(--ink);
  font-size: .98rem;
  line-height: 1.7;
  margin: 0;
}
.office-item a { color: var(--ocean-600); text-decoration: none; overflow-wrap: anywhere; }
.office-item a:hover { text-decoration: underline; }

/* ------------------------------------------------------------ cta band --- */
.cta-band {
  position: relative;
  overflow: hidden;
  padding-block: clamp(56px, 7vw, 88px);
  background:
    radial-gradient(760px 380px at 84% -18%, rgba(79, 195, 217, .22), transparent 60%),
    linear-gradient(160deg, var(--ocean-800) 0%, var(--ocean-950) 100%);
  color: #b9cede;
}
.cta-band h2 { color: #fff; max-inline-size: 20ch; }
.cta-band p { max-inline-size: 58ch; margin-block-end: 30px; }

/* ------------------------------------------------------------- footer ---- */
.site-footer {
  background: var(--ocean-950);
  color: #8fa9be;
  padding-block: clamp(52px, 6vw, 76px) 0;
  font-size: .93rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: clamp(30px, 4vw, 52px);
  padding-block-end: clamp(38px, 4.5vw, 56px);
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-brand { display: inline-flex; align-items: center; gap: 11px; margin-block-end: 16px; }
.footer-brand svg { inline-size: 30px; block-size: 30px; }
.footer-brand span { color: #fff; font-weight: 640; font-size: 1.1rem; letter-spacing: -.02em; }
.footer-tagline { color: #7d97ac; max-inline-size: 34ch; margin-block-end: 20px; }

.footer-legal-name {
  color: #adc4d6;
  font-size: .88rem;
  line-height: 1.7;
  font-style: normal;
}
.footer-legal-name strong { color: #d7e5f0; font-weight: 600; display: block; }

.site-footer h4 {
  color: #fff;
  font-size: .8rem;
  font-weight: 640;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-block-end: 1.3em;
}
html[lang="ar"] .site-footer h4 { letter-spacing: 0; text-transform: none; font-size: .92rem; }

.site-footer ul { list-style: none; padding-inline-start: 0; margin: 0; }
.site-footer li { margin-block-end: .75em; }
.site-footer a { color: #8fa9be; text-decoration: none; transition: color .15s ease; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.site-footer address { font-style: normal; line-height: 1.75; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 26px;
  padding-block: 22px 30px;
  border-block-start: 1px solid rgba(255, 255, 255, .1);
  font-size: .85rem;
  color: #6f899e;
}
.footer-bottom .spacer { flex: 1 1 auto; }
.footer-bottom nav { display: flex; flex-wrap: wrap; gap: 10px 22px; }

/* --------------------------------------------------------------- 404 ----- */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-block-size: 62vh;
  padding-block: var(--section);
}
.error-page p { max-inline-size: 46ch; color: var(--muted); margin-block-end: 30px; }