:root {
  color-scheme: light;
  --bg: #f7fafc;
  --bg-warm: #fffdf8;
  --surface: #ffffff;
  --surface-strong: #f2f7fb;
  --ink: #101828;
  --ink-soft: #24324a;
  --muted: #667085;
  --muted-strong: #475467;
  --line: #e4eaf2;
  --line-strong: #d5deea;
  --brand: #2457d6;
  --brand-dark: #173f9f;
  --brand-soft: #eaf1ff;
  --teal: #1ba99a;
  --teal-soft: #e7f8f5;
  --warning: #fff6df;
  --warning-line: #f4d48a;
  --warning-text: #73510b;
  --danger: #fff1f1;
  --danger-line: #ffc9c9;
  --danger-text: #b42318;
  --shadow: 0 18px 55px rgba(16, 24, 40, 0.08);
  --shadow-soft: 0 10px 30px rgba(16, 24, 40, 0.055);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Tahoma, Arial, sans-serif;
  background:
    radial-gradient(circle at top right, rgba(36, 87, 214, 0.11), transparent 32rem),
    linear-gradient(180deg, var(--bg-warm) 0%, var(--bg) 38%, #eef5f8 100%);
  color: var(--ink);
  line-height: 1.85;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(36, 87, 214, 0.28);
  outline-offset: 3px;
}

p {
  margin: 0 0 1rem;
}

ul,
ol {
  margin: 0;
  padding-inline-start: 1.25rem;
}

li {
  margin: 0.45rem 0;
}

h1,
h2,
h3 {
  color: var(--ink);
  line-height: 1.28;
  margin: 0 0 0.8rem;
}

h1 {
  font-size: clamp(2.3rem, 8vw, 5.1rem);
  letter-spacing: 0;
}

h2 {
  font-size: clamp(1.55rem, 3vw, 2.45rem);
}

h3 {
  font-size: 1.12rem;
}

.site-shell {
  min-height: 100vh;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(213, 222, 234, 0.76);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
}

.header-inner,
.section,
.footer-inner {
  width: min(var(--container), calc(100% - 32px));
  margin: 0 auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  padding: 0.9rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 900;
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 1rem;
  color: #ffffff;
  background: linear-gradient(135deg, var(--brand), var(--teal));
  box-shadow: 0 12px 25px rgba(36, 87, 214, 0.22);
  font-size: 1.45rem;
}

.brand-copy {
  display: grid;
  gap: 0.05rem;
}

.brand-title {
  font-size: 1.05rem;
}

.brand-subtitle {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.top-nav a,
.pill-link,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #ffffff;
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1.2;
  padding: 0.72rem 1rem;
  text-decoration: none;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.top-nav a:hover,
.pill-link:hover,
.button:hover {
  border-color: rgba(36, 87, 214, 0.32);
  background: var(--brand-soft);
  text-decoration: none;
  transform: translateY(-1px);
}

.button.primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  border-color: transparent;
  box-shadow: 0 16px 28px rgba(36, 87, 214, 0.24);
}

.button.secondary {
  color: var(--brand-dark);
  background: var(--brand-soft);
  border-color: rgba(36, 87, 214, 0.18);
}

.button.ghost {
  color: var(--muted-strong);
}

.page-main {
  padding: 2rem 0 4rem;
}

.hero {
  padding: clamp(2.2rem, 6vw, 5.8rem) 0 2.4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(310px, 0.72fr);
  align-items: center;
  gap: clamp(1.4rem, 4vw, 3rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  width: fit-content;
  margin-bottom: 1rem;
  border: 1px solid rgba(27, 169, 154, 0.26);
  border-radius: 999px;
  background: rgba(231, 248, 245, 0.82);
  color: #09786d;
  font-size: 0.86rem;
  font-weight: 900;
  padding: 0.42rem 0.8rem;
}

.lead {
  max-width: 790px;
  color: var(--muted-strong);
  font-size: clamp(1.05rem, 2.1vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.hero-panel {
  border: 1px solid rgba(213, 222, 234, 0.9);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(242, 247, 251, 0.96));
  box-shadow: var(--shadow);
  padding: clamp(1.25rem, 3vw, 2rem);
}

.hero-panel h2 {
  font-size: 1.35rem;
}

.signal-list {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

.signal {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #ffffff;
}

.signal-icon {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.75rem;
  background: var(--teal-soft);
  color: #08766b;
  font-weight: 900;
}

.notice,
.danger-notice {
  border-radius: var(--radius-md);
  padding: 1rem 1.1rem;
  margin: 1.1rem 0;
}

.notice {
  border: 1px solid var(--warning-line);
  background: var(--warning);
  color: var(--warning-text);
}

.danger-notice {
  border: 1px solid var(--danger-line);
  background: var(--danger);
  color: var(--danger-text);
}

.section {
  padding: 2.1rem 0;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 1.2rem;
}

.section-heading p {
  color: var(--muted-strong);
  font-size: 1.04rem;
}

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

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

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card,
.legal-card,
.link-card,
.summary-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-soft);
}

.card,
.legal-card,
.summary-card {
  padding: 1.25rem;
}

.card p,
.legal-card p,
.summary-card p {
  color: var(--muted-strong);
}

.card .icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 0.85rem;
  border-radius: 0.95rem;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-weight: 900;
}

.link-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 1.1rem;
  color: var(--ink);
  text-decoration: none;
}

.link-card:hover {
  border-color: rgba(36, 87, 214, 0.32);
  background: #ffffff;
  text-decoration: none;
}

.link-card strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 1rem;
}

.link-card span {
  color: var(--muted-strong);
  font-size: 0.92rem;
}

.download-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  border: 1px solid rgba(36, 87, 214, 0.18);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #ffffff, #eef5ff);
  box-shadow: var(--shadow);
  padding: clamp(1.25rem, 3vw, 2rem);
}

.store-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 8.8rem;
  border: 1px solid var(--line-strong);
  border-radius: 1rem;
  background: #ffffff;
  color: var(--muted-strong);
  font-weight: 900;
  padding: 0.8rem 1rem;
}

.legal-hero {
  border: 1px solid rgba(213, 222, 234, 0.9);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(234, 241, 255, 0.92));
  box-shadow: var(--shadow);
  padding: clamp(1.35rem, 4vw, 2.4rem);
  margin-bottom: 1.2rem;
}

.legal-hero h1 {
  font-size: clamp(2rem, 5vw, 3.8rem);
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.15rem;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #ffffff;
  color: var(--muted-strong);
  font-size: 0.86rem;
  font-weight: 800;
  padding: 0.48rem 0.78rem;
}

.legal-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 1rem;
  align-items: start;
}

.legal-stack {
  display: grid;
  gap: 1rem;
}

.legal-card h2 {
  font-size: 1.35rem;
}

.toc {
  position: sticky;
  top: 5.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-soft);
  padding: 1rem;
}

.toc h2 {
  font-size: 1rem;
}

.toc a {
  display: block;
  border-radius: 0.75rem;
  color: var(--muted-strong);
  font-size: 0.9rem;
  font-weight: 800;
  padding: 0.45rem 0.55rem;
}

.toc a:hover {
  background: var(--brand-soft);
  color: var(--brand-dark);
  text-decoration: none;
}

.inline-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  padding: 0;
  list-style: none;
}

.inline-list li {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-strong);
  color: var(--muted-strong);
  font-size: 0.9rem;
  font-weight: 800;
  padding: 0.45rem 0.75rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  padding: 2.3rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 2fr);
  gap: 1.5rem;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.55rem 1rem;
}

.footer-links a {
  color: var(--muted-strong);
  font-weight: 800;
}

.footer-note {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 1rem;
}

.support-email {
  direction: ltr;
  unicode-bidi: isolate;
  font-weight: 900;
}

@media (max-width: 980px) {
  .hero-grid,
  .legal-layout,
  .footer-grid,
  .download-panel {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
    order: -1;
  }

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

@media (max-width: 720px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-nav {
    justify-content: flex-start;
    width: 100%;
  }

  .top-nav a {
    flex: 1 1 auto;
  }

  .grid,
  .grid.two,
  .grid.four,
  .footer-links {
    grid-template-columns: 1fr;
  }

  .page-main {
    padding-top: 1rem;
  }

  .hero {
    padding-top: 1.4rem;
  }

  .section {
    padding: 1.35rem 0;
  }

  .card,
  .legal-card,
  .summary-card,
  .link-card {
    border-radius: 18px;
  }
}