/* KE8YGW Logger — site stylesheet */

:root {
  --bg: #ffffff;
  --bg-alt: #f6f7fa;
  --bg-navy: #101827;
  --text: #131826;
  --text-muted: #5b6472;
  --text-on-navy: #e7eaf1;
  --text-on-navy-muted: #9aa4b8;
  --accent: #ee9c2b;
  --accent-dark: #d1841a;
  --accent-soft: #fdf1de;
  --border: #e6e8ee;
  --border-navy: #24304a;
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 18px;
  --shadow: 0 1px 2px rgba(16, 24, 39, 0.04), 0 8px 24px -12px rgba(16, 24, 39, 0.12);
  --max-width: 1120px;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

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

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
}

h1 { font-size: clamp(2.2rem, 4vw + 1rem, 3.4rem); }
h2 { font-size: clamp(1.6rem, 2vw + 1rem, 2.2rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 16px; color: var(--text-muted); }

.lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 640px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-dark);
  background: var(--accent-soft);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.section {
  padding: 72px 0;
  border-bottom: 1px solid var(--border);
}

.section.alt { background: var(--bg-alt); }
.section.navy {
  background: var(--bg-navy);
  color: var(--text-on-navy);
  border-bottom: none;
}
.section.navy p { color: var(--text-on-navy-muted); }
.section.navy h2 { color: #fff; }
.section:last-of-type { border-bottom: none; }

.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease, border-color 0.12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}

.btn-primary {
  background: var(--accent);
  color: #1a1305;
  box-shadow: 0 6px 16px -6px rgba(238, 156, 43, 0.55);
}
.btn-primary:hover { background: var(--accent-dark); }

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--text); }

.btn-outline-light {
  background: transparent;
  border-color: var(--border-navy);
  color: var(--text-on-navy);
}
.btn-outline-light:hover { border-color: var(--text-on-navy); }

.btn-sm { padding: 8px 16px; font-size: 0.85rem; }

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

/* Header / nav */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--bg-navy);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.brand-mark svg { width: 19px; height: 19px; }

.brand-text .callsign {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 4px 0;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.nav-actions { display: flex; align-items: center; gap: 12px; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle svg { width: 20px; height: 20px; }

/* Hero */
.hero {
  padding: 88px 0 64px;
  background:
    radial-gradient(700px 320px at 85% -10%, rgba(238, 156, 43, 0.14), transparent 60%),
    var(--bg);
}
.hero-inner { max-width: 720px; }

.hero .lead { font-size: 1.2rem; }

/* Feature grid */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
}
.card h3 { margin-bottom: 8px; }
.card p { margin-bottom: 0; font-size: 0.95rem; }

.icon-badge {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.icon-badge svg { width: 20px; height: 20px; }

.section.navy .card {
  background: #161f33;
  border-color: var(--border-navy);
  box-shadow: none;
}
.section.navy .icon-badge { background: rgba(238, 156, 43, 0.12); }

/* Pill / tag list (operating modes) */
.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.pill {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 999px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text);
}

/* Feature list rows (features page) */
.feature-block {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 36px;
  padding: 40px 0;
  border-top: 1px solid var(--border);
}
.feature-block:first-of-type { border-top: none; padding-top: 0; }
.feature-block h3 { margin-bottom: 6px; }
.feature-block .tagline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-dark);
  margin-bottom: 10px;
  display: block;
}

.check-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.check-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--text);
  font-size: 0.98rem;
}
.check-list svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--accent-dark);
}

/* Roadmap timeline */
.timeline { display: grid; gap: 0; }
.phase {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 32px;
  padding: 34px 0;
  border-top: 1px solid var(--border);
}
.phase:first-of-type { border-top: none; padding-top: 0; }

.phase-label { display: flex; flex-direction: column; gap: 10px; }
.phase-label .num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 5px 11px;
  border-radius: 999px;
  width: fit-content;
}
.status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; }
.status.in-progress { background: var(--accent-soft); color: var(--accent-dark); }
.status.in-progress::before { background: var(--accent); }
.status.planned { background: var(--bg-alt); color: var(--text-muted); }
.status.planned::before { background: #b7bfcc; }

/* Code block */
.code-block {
  background: var(--bg-navy);
  color: #dbe4f3;
  border-radius: var(--radius);
  padding: 22px 24px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  overflow-x: auto;
  line-height: 1.7;
}
.code-block .muted { color: #7684a0; }
.code-block .accent { color: var(--accent); }

.step-list { list-style: none; margin: 0; padding: 0; counter-reset: step; display: grid; gap: 22px; }
.step-list li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 16px;
}
.step-list li::before {
  content: counter(step);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--bg-navy);
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step-list h4 { margin-bottom: 4px; }
.step-list p { margin-bottom: 0; }

/* Link cards (footer links, about page) */
.link-card {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--shadow);
  transition: border-color 0.12s ease, transform 0.12s ease;
}
.link-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.link-card .arrow { color: var(--accent-dark); flex-shrink: 0; margin-top: 4px; }
.link-card .arrow svg { width: 18px; height: 18px; }
.link-card h3 { margin-bottom: 4px; }
.link-card p { margin-bottom: 0; font-size: 0.88rem; }

/* Two column layout */
.two-col {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

/* Footer */
footer.site-footer {
  background: var(--bg-navy);
  color: var(--text-on-navy-muted);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
}
.footer-grid h4 {
  color: var(--text-on-navy);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-grid a { font-size: 0.92rem; color: var(--text-on-navy-muted); }
.footer-grid a:hover { color: #fff; }
.footer-brand p { color: var(--text-on-navy-muted); font-size: 0.92rem; max-width: 280px; }

.footer-bottom {
  border-top: 1px solid var(--border-navy);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  font-size: 0.82rem;
}

/* Utility */
.mt-0 { margin-top: 0; }
.text-center { text-align: center; }
.center-head { margin-left: auto; margin-right: auto; text-align: center; }

/* Responsive */
@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .feature-block, .phase { grid-template-columns: 1fr; gap: 14px; }
  .two-col { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 40px; }
  .section { padding: 56px 0; }
}

body.nav-open .nav-links {
  display: flex;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px 20px;
}
body.nav-open .nav-links a { padding: 10px 0; width: 100%; }