/* Northbridge Aurora — site.css */

:root {
  --color-bg: #fafbfc;
  --color-surface: #ffffff;
  --color-text: #1a1d23;
  --color-text-muted: #5a6170;
  --color-primary: #1b2e4a;
  --color-accent: #4caf82;
  --color-accent-light: #e8f5ee;
  --color-border: #e2e5ea;
  --color-code-bg: #f0f2f5;
  --font-sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;
  --max-width: 72rem;
  --nav-height: 3.75rem;
}

/* ── Reset ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover,
a:focus-visible {
  color: #3a9b6e;
  text-decoration: underline;
}

/* ── Focus ── */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ── Skip link ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--color-primary);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 0 0 0.25rem 0.25rem;
  z-index: 1000;
  font-size: 0.875rem;
}

.skip-link:focus {
  top: 0;
}

/* ── Navigation ── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-primary);
  color: #fff;
  height: var(--nav-height);
}

.site-nav .nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  height: 100%;
  gap: 2rem;
}

.site-nav .brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: #fff;
  letter-spacing: -0.01em;
  white-space: nowrap;
  text-decoration: none;
}

.site-nav .brand:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.25rem;
  margin-left: auto;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  border-radius: 0.25rem;
  transition: background 0.15s, color 0.15s;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  text-decoration: none;
}

.nav-links a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  margin-left: auto;
  padding: 0.25rem;
}

/* ── Main ── */
main {
  flex: 1;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

/* ── Hero ── */
.hero {
  padding: 3rem 0 2rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--color-primary);
}

.hero .subhead {
  font-size: clamp(1.1rem, 2.5vw, 1.45rem);
  color: var(--color-text-muted);
  margin-top: 0.75rem;
  font-weight: 400;
}

/* ── Typography ── */
h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
}

ul, ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.35rem;
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-code-bg);
  padding: 0.15em 0.4em;
  border-radius: 0.2rem;
}

/* ── Cards ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  padding: 1.75rem;
  transition: box-shadow 0.2s ease;
}

.card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

.card p {
  color: var(--color-text-muted);
  font-size: 0.925rem;
  margin-bottom: 0;
}

/* ── Staff cards ── */
.staff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.staff-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  padding: 1.75rem;
}

.staff-card .name {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-primary);
}

.staff-card .role {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.staff-card .email {
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.staff-card .note {
  font-size: 0.9rem;
  font-style: italic;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* ── Callout ── */
.callout {
  background: var(--color-accent-light);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 0.375rem 0.375rem 0;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

.callout p {
  margin-bottom: 0;
}

/* ── Links list (press, etc.) ── */
.links-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

.links-list li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
}

.links-list li:last-child {
  border-bottom: none;
}

.links-list .desc {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* ── Blog list ── */
.post-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

.post-list li {
  margin-bottom: 1rem;
}

.post-list a {
  font-size: 1.1rem;
  font-weight: 600;
}

/* ── Trail / logbook ── */
.logbook {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  padding: 2rem;
  margin: 1.5rem 0;
  max-width: 40rem;
}

.logbook blockquote {
  font-style: italic;
  color: var(--color-text-muted);
  border-left: 3px solid var(--color-accent);
  padding-left: 1rem;
  margin-bottom: 1.25rem;
}

.logbook .badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  background: var(--color-primary);
  color: #fff;
  padding: 0.3rem 0.75rem;
  border-radius: 0.25rem;
  margin-bottom: 0.75rem;
}

.logbook .flag {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-accent);
  word-break: break-all;
}

/* ── Noise / small print ── */
.small-print {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

/* ── Contact list ── */
.contact-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

.contact-list li {
  padding: 0.6rem 0;
  font-size: 1rem;
}

.contact-list .label {
  font-weight: 600;
  color: var(--color-primary);
  min-width: 7rem;
  display: inline-block;
}

/* ── Section ── */
.section {
  margin-top: 3rem;
}

/* ── Footer ── */
.site-footer {
  margin-top: auto;
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.8rem;
  text-align: center;
  padding: 1.5rem;
  line-height: 1.6;
}

.site-footer strong {
  color: #fff;
  font-weight: 600;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.85);
}

/* ── 404 ── */
.error-page {
  text-align: center;
  padding: 5rem 1.5rem;
}

.error-page h1 {
  font-size: 6rem;
  color: var(--color-border);
  margin-bottom: 0.5rem;
}

.error-page p {
  font-size: 1.1rem;
  color: var(--color-text-muted);
}

/* ── Decoy notice ── */
.decoy-notice {
  background: #fff8e1;
  border-left: 4px solid #ffc107;
  padding: 1.25rem 1.5rem;
  border-radius: 0 0.375rem 0.375rem 0;
  margin: 1.5rem 0;
  font-size: 0.95rem;
  color: #6d5a00;
}

/* ── Meta string ── */
.meta-string {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-top: 2rem;
}

/* ── Responsive ── */
@media (max-width: 48rem) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-primary);
    flex-direction: column;
    padding: 0.5rem 1rem 1rem;
    gap: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 0.6rem 0.75rem;
    display: block;
  }

  main {
    padding: 2rem 1rem;
  }

  .hero {
    padding: 1.5rem 0 1rem;
  }

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

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