:root {
  color-scheme: dark;
  --background: #0b0e0f;
  --surface: #121718;
  --surface-raised: #182021;
  --border: #2a3435;
  --text: #f4f7f6;
  --muted: #a7b2b0;
  --accent: #39d98a;
  --accent-strong: #1fc978;
  --accent-soft: #143527;
  --warning: #f0b35a;
  --max-width: 1120px;
  --reading-width: 760px;
  --radius: 8px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--background);
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

button,
a {
  font: inherit;
}

a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

a:hover {
  color: #70e7aa;
}

a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
  border-radius: 4px;
}

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

.shell {
  width: min(100% - 32px, var(--max-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  inset-block-start: 12px;
  inset-inline-start: 12px;
  z-index: 100;
  padding: 8px 12px;
  background: var(--accent);
  color: #07110c;
  font-weight: 700;
  transform: translateY(-160%);
}

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

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 20;
  border-block-end: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(11, 14, 15, 0.94);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.primary-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px 18px;
}

.primary-nav a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

.primary-nav a:hover {
  color: var(--text);
}

.primary-nav .language-switch {
  min-width: 76px;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  text-align: center;
}

.hero {
  min-height: min(720px, calc(100svh - 64px));
  display: grid;
  place-items: center;
  padding-block: 64px 72px;
  border-block-end: 1px solid var(--border);
  text-align: center;
}

.hero-content {
  max-width: 820px;
}

.hero-icon {
  width: 112px;
  height: 112px;
  margin: 0 auto 28px;
  border-radius: 24px;
  box-shadow: 0 20px 56px rgba(0, 0, 0, 0.42);
}

h1,
h2,
h3,
p {
  margin-block-start: 0;
}

h1 {
  margin-block-end: 16px;
  font-size: clamp(2.6rem, 10vw, 5.4rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 720px;
  margin: 0 auto 14px;
  color: var(--text);
  font-size: clamp(1.25rem, 4vw, 1.8rem);
  font-weight: 680;
  line-height: 1.35;
}

.hero-copy {
  max-width: 700px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 1.05rem;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-block-start: 28px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-raised);
  color: var(--text);
  font-weight: 720;
  text-decoration: none;
}

.button-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #07110c;
}

.release-note {
  margin-block: 20px 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.content-band {
  padding-block: 68px;
  border-block-end: 1px solid var(--border);
}

.section-heading {
  max-width: 720px;
  margin-block-end: 30px;
}

.section-heading h2 {
  margin-block-end: 10px;
  font-size: clamp(1.8rem, 5vw, 2.7rem);
  line-height: 1.18;
}

.section-heading p {
  margin: 0;
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.feature {
  min-height: 170px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.feature h3 {
  margin-block-end: 8px;
  font-size: 1.05rem;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.platform-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-block: 22px;
}

.platform-strip span {
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-weight: 650;
}

.notice {
  padding: 18px 20px;
  border-inline-start: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--accent-soft);
  color: #d9f7e8;
}

[dir="rtl"] .notice {
  border-radius: var(--radius) 0 0 var(--radius);
}

.document-header {
  padding-block: 64px 34px;
  border-block-end: 1px solid var(--border);
}

.reading-shell {
  width: min(100% - 32px, var(--reading-width));
  margin-inline: auto;
}

.document-header h1 {
  margin-block-end: 12px;
  font-size: clamp(2.1rem, 8vw, 3.7rem);
}

.document-summary {
  max-width: 680px;
  margin-block-end: 10px;
  color: var(--muted);
  font-size: 1.05rem;
}

.updated {
  margin: 0;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
}

.document-body {
  padding-block: 38px 72px;
}

.document-section {
  padding-block: 26px;
  border-block-end: 1px solid var(--border);
}

.document-section:first-child {
  padding-block-start: 0;
}

.document-section:last-child {
  border-block-end: 0;
}

.document-section h2 {
  margin-block-end: 10px;
  color: var(--text);
  font-size: 1.35rem;
  line-height: 1.35;
}

.document-section h3 {
  margin-block: 22px 8px;
  font-size: 1.05rem;
}

.document-section p,
.document-section li {
  color: #c6cecc;
}

.document-section p:last-child,
.document-section ul:last-child,
.document-section ol:last-child {
  margin-block-end: 0;
}

.document-section ul,
.document-section ol {
  padding-inline-start: 1.35rem;
}

.document-section li + li {
  margin-block-start: 7px;
}

.contact-panel {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.contact-email {
  display: inline-block;
  margin-block: 6px 16px;
  color: var(--text);
  font-size: clamp(1rem, 4vw, 1.2rem);
  font-weight: 760;
  overflow-wrap: anywhere;
}

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

.legal-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-weight: 680;
  text-decoration: none;
}

.legal-list a::after {
  content: "→";
  color: var(--accent);
}

[dir="rtl"] .legal-list a::after {
  content: "←";
}

.site-footer {
  padding-block: 34px;
  background: #080a0b;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 2fr auto;
  align-items: start;
  gap: 24px;
}

.footer-brand {
  display: grid;
  gap: 5px;
}

.footer-brand span {
  color: var(--muted);
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.footer-links a,
.footer-email {
  color: var(--muted);
  font-size: 0.88rem;
  text-decoration: none;
}

.footer-links a:hover,
.footer-email:hover {
  color: var(--text);
}

[dir="rtl"] body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Arabic", "Geeza Pro", "Segoe UI", sans-serif;
}

@media (max-width: 760px) {
  .header-inner {
    min-height: 58px;
  }

  .primary-nav > a:not(.language-switch) {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-block: 56px 60px;
  }

  .hero-icon {
    width: 92px;
    height: 92px;
    border-radius: 20px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature {
    min-height: 0;
  }

  .content-band {
    padding-block: 48px;
  }

  .document-header {
    padding-block: 48px 28px;
  }

  .document-body {
    padding-block: 30px 54px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

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