* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text-body);
  background:
    radial-gradient(circle at top right, rgba(0, 74, 173, 0.08), transparent 28%),
    linear-gradient(180deg, #f9fbff 0%, #f3f6fb 100%);
  -webkit-font-smoothing: antialiased;
}

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

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

code {
  font-family: var(--font-mono);
  font-size: 0.95em;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--border-default);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 76px;
}

.brand img {
  height: 42px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.nav a {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-muted);
}

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

.hero {
  padding: 56px 0 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 28px;
  align-items: stretch;
}

.hero-copy,
.hero-card,
.feature-card,
.step-card,
.download-card,
.release-card,
.donation-panel {
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-sm);
}

.hero-copy {
  padding: 36px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--blue-20);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.hero h1,
.section-head h2,
.donation-panel h2 {
  margin: 18px 0 0;
  color: var(--text-strong);
  font-family: var(--font-display);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
}

.hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.8rem);
}

.lead,
.section-head p,
.callout p,
.donation-panel p,
.feature-card p,
.step-card p,
.download-card p,
.release-card p,
.metric span,
.footer-grid p,
.footer-grid span {
  color: var(--text-muted);
  line-height: var(--leading-normal);
}

.lead {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: var(--text-md);
}

.hero-actions,
.donation-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--control-h-md);
  padding: 0 18px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  transition: all var(--dur) var(--ease);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-primary);
}

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

.btn-secondary {
  border-color: var(--border-default);
  background: #fff;
  color: var(--color-primary);
}

.btn-secondary:hover {
  border-color: var(--border-strong);
  background: var(--surface-50);
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
}

.btn-accent:hover {
  background: var(--color-accent-hover);
}

.btn-disabled,
.btn[aria-disabled="true"] {
  pointer-events: none;
  opacity: 0.55;
}

.hero-points {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.hero-points li {
  position: relative;
  padding-left: 18px;
  color: var(--text-body);
}

.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--color-accent);
}

.hero-panel {
  display: flex;
}

.hero-card {
  padding: 24px;
  width: 100%;
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.mark {
  width: 78px;
  height: 78px;
  object-fit: contain;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(242, 152, 42, 0.14);
  color: #b16512;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
}

.metric-grid,
.feature-grid,
.step-grid,
.download-grid,
.release-list,
.footer-grid {
  display: grid;
  gap: 18px;
}

.metric-grid {
  grid-template-columns: 1fr;
  margin-top: 22px;
}

.metric {
  padding: 16px;
  border-radius: var(--radius-md);
  background: var(--surface-50);
}

.metric strong,
.feature-card h3,
.step-card h3,
.download-card h3,
.release-card h3,
.footer-grid h3,
.callout strong {
  display: block;
  color: var(--text-strong);
}

.metric span {
  display: block;
  margin-top: 6px;
  font-size: var(--text-sm);
}

.callout {
  margin-top: 22px;
  padding: 18px;
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(0, 74, 173, 0.06), rgba(0, 74, 173, 0.02));
  border: 1px solid rgba(0, 74, 173, 0.12);
}

.callout p {
  margin: 8px 0 0;
}

.section {
  padding: 32px 0 72px;
}

.section-alt {
  background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(0,74,173,0.03) 100%);
}

.section-head {
  margin-bottom: 28px;
}

.section-head h2 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.section-head p {
  margin: 14px 0 0;
  max-width: 70ch;
}

.section-head.narrow {
  max-width: 760px;
}

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

.feature-card,
.step-card,
.download-card,
.release-card {
  padding: 22px;
}

.feature-card h3,
.step-card h3,
.download-card h3,
.release-card h3 {
  margin: 0 0 10px;
  font-size: var(--text-lg);
}

.feature-card p,
.step-card p,
.download-card p,
.release-card p {
  margin: 0;
  font-size: var(--text-sm);
}

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

.step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: var(--color-primary);
  color: #fff;
  font-weight: var(--weight-semibold);
  margin-bottom: 14px;
}

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

.download-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.download-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  background: var(--surface-50);
  color: var(--text-body);
}

.pill-ready {
  background: rgba(0, 74, 173, 0.12);
  color: var(--color-primary);
}

.pill-placeholder {
  background: rgba(242, 152, 42, 0.14);
  color: #b16512;
}

.release-list {
  grid-template-columns: 1fr;
}

.release-card {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 18px;
}

.release-version {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.release-version strong {
  font-size: var(--text-xl);
  color: var(--color-primary);
}

.release-version span {
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.release-items {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.release-items li {
  color: var(--text-body);
  line-height: var(--leading-normal);
}

.donation-panel {
  padding: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.placeholder-note {
  margin: 8px 0 0;
  font-size: var(--text-xs);
}

.site-footer {
  padding: 40px 0 28px;
  background: #08172f;
  color: #dce4f3;
}

.footer-grid {
  grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(0, 1fr));
}

.footer-logo {
  height: 42px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer-grid h3 {
  margin: 0 0 12px;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: #fff;
}

.footer-grid p,
.footer-grid a,
.footer-grid span {
  display: block;
  font-size: var(--text-sm);
  color: #c6cfdf;
  margin: 0 0 10px;
}

.footer-grid a:hover {
  color: #fff;
}

.footer-base {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: var(--text-xs);
  color: #9fb0ca;
}

@media (max-width: 1080px) {
  .hero-grid,
  .feature-grid,
  .step-grid,
  .download-grid,
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .donation-panel,
  .release-card {
    grid-template-columns: 1fr;
    display: grid;
  }
}

@media (max-width: 760px) {
  .topbar,
  .nav,
  .hero-actions,
  .donation-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-grid,
  .feature-grid,
  .step-grid,
  .download-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .hero-card,
  .feature-card,
  .step-card,
  .download-card,
  .release-card,
  .donation-panel {
    padding: 20px;
  }

  .card-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .brand img {
    height: 36px;
  }

  .container {
    width: min(1180px, calc(100% - 24px));
  }
}