:root {
  --bg: #0a0a0a;
  --bg-alt: #141414;
  --bg-elev: #1c1c1c;
  --border: #2a2a2a;
  --text: #f0f0f0;
  --text-muted: #9a9a9a;
  --accent: #e32105;
  --accent-hover: #ff3d1a;
  --accent-deep: #b81800;
  --accent-soft: rgba(227, 33, 5, 0.12);
  --code-bg: #050505;
  --radius: 8px;
  --max-w: 880px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { line-height: 1.25; margin: 0 0 0.5em; }

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0.5em 0 0.25em;
}

h2 {
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 0.5em;
}

p { margin: 0 0 1em; }

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { color: var(--accent-hover); text-decoration: underline; }

/* ========== Top nav ========== */
.topnav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--text);
}
.brand:hover { color: var(--text); text-decoration: none; }
.brand img {
  border-radius: 4px;
}
.nav-links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}
.nav-links a {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
}
.nav-links a:hover {
  color: var(--accent);
  text-decoration: none;
}

/* ========== Hero ========== */
.hero {
  text-align: center;
  padding: 100px 0 80px;
  background:
    radial-gradient(ellipse at top, var(--accent-soft) 0%, transparent 65%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
}
.hero-logo {
  width: 128px;
  height: 128px;
  margin-bottom: 1.25rem;
  filter: drop-shadow(0 4px 16px var(--accent-soft));
}
.hero .tagline {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 2rem;
}
.cta-row {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}
.cta {
  display: inline-block;
  background: var(--accent);
  color: #ffffff;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1.05rem;
  transition: background 0.15s ease;
  border: none;
  cursor: pointer;
}
.cta:hover {
  background: var(--accent-hover);
  color: #ffffff;
  text-decoration: none;
}
.cta-secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.cta-secondary:hover {
  background: var(--accent-soft);
  color: var(--accent-hover);
  border-color: var(--accent-hover);
}
.version-line {
  margin-top: 1.5rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ========== Sections ========== */
section {
  padding: 64px 0;
  border-top: 1px solid var(--border);
}
section .container > p { color: var(--text-muted); }

/* ========== Identity section ========== */
.identity-section {
  text-align: center;
  background:
    linear-gradient(180deg, var(--bg-alt) 0%, var(--bg) 100%);
}
.wordmark {
  display: block;
  margin: 0 auto 1.25rem;
  width: 100%;
  max-width: 640px;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}
.identity-caption {
  max-width: 560px;
  margin: 0 auto;
  font-size: 0.95rem;
  font-style: italic;
  color: var(--text-muted);
}
@media (prefers-color-scheme: light) {
  .wordmark {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
  }
}

/* ========== Features ========== */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}
/* Seed-list grid: cards carry the long I2P base32 addresses (60 chars),
   so each card needs more horizontal room than a typical feature card.
   360px min keeps 3-across on wide desktop and stacks to single column
   on tablet/phone so the addresses wrap cleanly. */
.features.features-seeds {
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
}
.feature {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.feature:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.feature h3 { color: var(--text); }
.feature p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.97rem;
}
.feature-icon {
  font-size: 1.6rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

/* ========== Download ========== */
.download-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  margin: 1.5rem 0 1rem;
}
.download-card-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.5rem;
}
.download-card-header h3 { margin: 0; }
.download-size {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
.download-card p {
  color: var(--text-muted);
  margin: 0 0 1.25rem;
}
.btn {
  display: inline-block;
  background: var(--accent);
  color: #ffffff;
  padding: 11px 22px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  transition: background 0.15s ease;
}
.btn:hover {
  background: var(--accent-hover);
  color: #ffffff;
  text-decoration: none;
}
.btn-large {
  padding: 16px 32px;
  font-size: 1.1rem;
}
.hash-block {
  margin-top: 1.25rem;
  padding: 0.75rem 1rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.hash-block summary {
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.92rem;
  user-select: none;
}
.hash-block summary:hover { color: var(--text); }
.hash-block code {
  display: block;
  margin-top: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.82rem;
  word-break: break-all;
  color: var(--accent);
}
.copy-btn {
  margin-top: 0.5rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.15s ease;
}
.copy-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}
.hash-hint {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.hash-hint code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  background: var(--bg-elev);
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 0.85rem;
}
.other-downloads {
  margin-top: 1.5rem;
  text-align: center;
  color: var(--text-muted);
}

/* ========== Staking section ========== */
.staking-section {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
}
.staking-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0;
}
.staking-stat {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  text-align: center;
}
.staking-stat .stat-value {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.1;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  margin-bottom: 0.25rem;
}
.staking-stat .stat-label {
  font-size: 0.88rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ========== Explorer section ========== */
.explorer-section {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
  text-align: center;
}
.explorer-section p {
  max-width: 600px;
  margin: 0 auto 2rem;
}

/* ========== FAQ ========== */
.faq-item {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  margin: 0 0 0.75rem;
  transition: border-color 0.15s ease;
}
.faq-item[open] {
  border-color: var(--accent);
}
.faq-item summary {
  cursor: pointer;
  padding: 1rem 1.25rem;
  font-weight: 600;
  color: var(--text);
  user-select: none;
  list-style: none;
  position: relative;
  padding-right: 2.5rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--accent);
  line-height: 1;
}
.faq-item[open] summary::after {
  content: '−';
}
.faq-item summary:hover { color: var(--accent); }
.faq-item > p {
  padding: 0 1.25rem 1.25rem;
  margin: 0;
  color: var(--text-muted);
}

/* ========== Contact ========== */
.contact-section {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
}
.contact-lead {
  max-width: 640px;
  margin: 0 auto 2rem;
  font-size: 1.05rem;
  color: var(--text-muted);
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0 2rem;
}
.contact-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.15s ease;
}
.contact-card:hover {
  border-color: var(--accent);
}
.contact-card h3 { color: var(--text); margin-top: 0.5rem; }
.contact-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}
.contact-icon {
  font-size: 1.6rem;
  color: var(--accent);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
.contact-note {
  padding: 1.25rem 1.5rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0;
}

/* ========== Links list ========== */
.links {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}
.links li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}
.links li:last-child { border-bottom: none; }
.links strong {
  display: inline-block;
  min-width: 140px;
  color: var(--text);
  font-weight: 600;
}

/* ========== Footer ========== */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}
footer p { margin: 0 0 0.5em; }
footer p:last-child { margin-bottom: 0; }
.footer-tagline {
  font-size: 0.92rem;
  color: var(--text);
}
.footer-meta {
  color: var(--text-muted);
}
.footer-tagline a {
  margin-left: 0.25rem;
}
.footer-meta {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-top: 0.25rem;
}
.rss-link {
  display: inline-flex;
  align-items: center;
  color: var(--text-muted);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.88rem;
  transition: color 0.15s ease;
}
.rss-link:hover {
  color: var(--accent);
  text-decoration: none;
}
.rss-link svg {
  fill: currentColor;
}

/* ========== Mobile ========== */
@media (max-width: 700px) {
  .hero { padding: 64px 0 56px; }
  .hero-logo { width: 96px; height: 96px; }
  section { padding: 48px 0; }
  .nav-links { gap: 0.9rem; font-size: 0.85rem; }
  .brand span { display: none; }
  .download-card-header {
    flex-direction: column;
    gap: 0.25rem;
    align-items: flex-start;
  }
  .links strong { display: block; min-width: 0; margin-bottom: 0.2rem; }
}

/* ========== Light mode respect ========== */
@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --bg-alt: #fafafa;
    --bg-elev: #f0f0f0;
    --border: #e0e0e0;
    --text: #1a1a1a;
    --text-muted: #666666;
    --accent: #e32105;
    --accent-hover: #ff3d1a;
    --accent-deep: #b81800;
    --accent-soft: rgba(227, 33, 5, 0.08);
    --code-bg: #fafafa;
  }
  .topnav {
    background: rgba(255, 255, 255, 0.85);
  }
}
/* ===== Dev contact address block (added 2026-06-23) ===== */
.dev-address-block {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(227, 33, 5, 0.2);
  text-align: left;
}
.dev-address-label,
.dev-proof-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #888;
  margin-bottom: 0.25rem;
  margin-top: 0.5rem;
}
.dev-address {
  display: block;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.8rem;
  word-break: break-all;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(227, 33, 5, 0.3);
  border-radius: 4px;
  padding: 0.5rem 0.75rem;
  color: #e32105;
}
.dev-proof-details {
  margin-top: 0.75rem;
  font-size: 0.85rem;
}
.dev-proof-details summary {
  cursor: pointer;
  color: #e32105;
  user-select: none;
}
.dev-proof {
  margin-top: 0.5rem;
  padding: 0.75rem;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 4px;
}
.dev-proof-text,
.dev-signature {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.75rem;
  word-break: break-all;
  white-space: pre-wrap;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(227, 33, 5, 0.2);
  border-radius: 4px;
  padding: 0.5rem 0.75rem;
  margin: 0 0 0.5rem 0;
  color: inherit;
  display: block;
}
.dev-proof-verify {
  font-size: 0.75rem;
  color: #888;
  margin-top: 0.5rem;
}
.dev-proof-verify code {
  font-size: 0.7rem;
  word-break: break-all;
}

/* Live block counter — animated when blocks arrive */
.live-stat .stat-value {
  transition: color 0.4s ease, text-shadow 0.4s ease;
  font-variant-numeric: tabular-nums;
}

/* Long unbreakable strings (I2P base32, hashes) must wrap inside any
   container — not just .hash-hint. Generic rule plus a feature-card
   override so the seed-list I2P addresses never get clipped. */
code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92em;
  word-break: break-all;
  overflow-wrap: anywhere;
}
.feature p code,
.feature code {
  display: inline-block;
  max-width: 100%;
  word-break: break-all;
  overflow-wrap: anywhere;
}
.live-stat .stat-value.flash {
  color: #4ade80;
  text-shadow: 0 0 12px rgba(74, 222, 128, 0.6);
}
.live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-left: 6px;
  border-radius: 50%;
  background: #4ade80;
  vertical-align: middle;
  box-shadow: 0 0 8px rgba(74, 222, 128, 0.7);
  animation: live-pulse 1.6s ease-in-out infinite;
}
@keyframes live-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.85); }
}

/* ========== Install via package manager ========== */
.install-via-heading {
  margin-top: 2.5rem;
  margin-bottom: 0.25rem;
  font-size: 1.35rem;
}
.install-via-lead {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}
.install-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  margin: 1rem 0 1.5rem;
}
.install-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.25rem 1rem;
}
.install-card-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.install-card-header h4 {
  margin: 0;
  font-size: 1.05rem;
}
.install-status {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  white-space: nowrap;
}
.status-live {
  background: rgba(0, 180, 90, 0.12);
  color: #0a9b4f;
  border: 1px solid rgba(0, 180, 90, 0.35);
}
.status-personal {
  background: rgba(180, 140, 0, 0.12);
  color: #b08000;
  border: 1px solid rgba(180, 140, 0, 0.35);
}
.install-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0 0 0.75rem;
}
.install-meta {
  margin-top: 0.75rem !important;
  font-size: 0.82rem !important;
  color: var(--text-muted);
}
.install-meta a { color: var(--accent); }

@media (max-width: 720px) {
  .install-grid { grid-template-columns: 1fr; }
}