/* ==========================================================================
   SITE.CSS — Basecamp site-specific layer on top of basecamp.css
   Bridges legacy CSS variable names → new tokens, and provides
   site-specific component classes not in the design system.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Variable bridge — maps old names to new basecamp.css tokens
   Also overrides basecamp.css defaults to match site preferences.
   -------------------------------------------------------------------------- */
:root {
  --red:              var(--accent);
  --red-dark:         var(--accent-deep);
  --cream:            var(--paper);
  --border:           var(--hairline);
  --font-header:      var(--font-display);
  --font-header-page: var(--font-display);
  --font-body:        var(--font-text);

  /* Site-specific overrides */
  --accent:           #0f291d;   /* original dark green */
  --accent-deep:      #0a1e14;   /* hover — slightly deeper */
  --font-mono:        "Vollkorn", Georgia, serif;
}

/* Headings in dark green */
h1, h2, h3, h4, h5, h6 {
  color: #0f291d;
}

/* --------------------------------------------------------------------------
   Layout — override basecamp.css's centered 68rem column with full-width
   -------------------------------------------------------------------------- */
body {
  max-width: none;
  padding-top: 0;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

@media (max-width: 640px) {
  body {
    padding-left: var(--space-4);  /* 16px on mobile */
    padding-right: var(--space-4);
  }
  .site-header {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
    margin-left: calc(-1 * var(--space-4));
    margin-right: calc(-1 * var(--space-4));
  }
}

/* --------------------------------------------------------------------------
   Wordmark — bold display weight
   -------------------------------------------------------------------------- */
.wordmark {
  font-size: var(--text-3xl);   /* 52px — same as h1 */
  font-weight: 700;
  margin-bottom: var(--space-3);
}

/* --------------------------------------------------------------------------
   Nav links — larger for legibility; thicker separator line
   -------------------------------------------------------------------------- */
nav a {
  font-size: 0.875rem;   /* 14px — up from 12px */
}

nav {
  border-bottom-width: 2px;
}

/* --------------------------------------------------------------------------
   Site header (used via siteheader.njk)
   -------------------------------------------------------------------------- */
.site-header {
  margin-bottom: var(--space-6);   /* 40px — more visual separation from page heading */
}

.site-header-top {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

/* Hamburger button — hidden on desktop */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
  flex-shrink: 0;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #0f291d;
  transition: all 0.2s ease;
  transform-origin: center;
}

/* Animate to X when open */
.nav-toggle-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle-open span:nth-child(2) { opacity: 0; }
.nav-toggle-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   Mobile nav — hamburger dropdown
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
    align-self: center;
    margin-bottom: var(--space-3);
  }

  #site-nav {
    display: none;
    flex-direction: column;
    border-top: 1px solid var(--hairline);
    border-bottom: none;
    padding: var(--space-3) 0 var(--space-4);
    margin-bottom: var(--space-4);
  }

  #site-nav.nav-open {
    display: flex;
  }

  #site-nav a {
    font-size: 1rem;
    letter-spacing: 0.04em;
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--hairline);
    border-bottom-color: transparent;
  }

  #site-nav a:not(:last-child) {
    border-bottom-color: var(--hairline);
  }
}

/* --------------------------------------------------------------------------
   Content containers
   -------------------------------------------------------------------------- */
.content-wrap,
.content-wrap-wide {
  padding-bottom: var(--space-7);
}

/* --------------------------------------------------------------------------
   Page headers (legacy .page-header / .page-title classes)
   The h1 inside is already styled by basecamp.css. This just spaces it.
   -------------------------------------------------------------------------- */
.page-header {
  margin-bottom: var(--space-6);
}

/* --------------------------------------------------------------------------
   Entry items (Links, etc.)
   -------------------------------------------------------------------------- */
.entry-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 3fr);
  gap: 0 40px;
  padding: 24px 0;
  border-bottom: 1px solid var(--hairline);
  min-width: 0;
}
.entry-item:first-child { border-top: 1px solid var(--hairline); }

.entry-meta { min-width: 0; }

.entry-name {
  font-family: var(--font-mono);
  font-size: 0.875rem;   /* 14px — up from 12px */
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  word-break: break-word;
  margin-bottom: 4px;
}
.entry-name a {
  color: var(--accent);
  text-decoration: none;
}
.entry-name a:hover { text-decoration: underline; }

.entry-url {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
  word-break: break-all;
  overflow-wrap: anywhere;
  margin-bottom: 6px;
}

.entry-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.entry-explanation {
  font-family: var(--font-text);
  font-size: 1.05rem;   /* ~17px — up from 0.9rem */
  line-height: 1.75;
  color: var(--ink);
  word-break: break-word;
  overflow-wrap: break-word;
  min-width: 0;
}

/* --------------------------------------------------------------------------
   Tag filter buttons (Links, Books)
   -------------------------------------------------------------------------- */
.tag-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--space-6);
}

.tag-btn {
  background: none;
  border: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding: 5px 14px;
  cursor: pointer;
  transition: all 0.15s;
}
.tag-btn.active,
.tag-btn:hover {
  background: var(--accent);
  color: var(--paper);
  border-color: var(--accent);
}

/* --------------------------------------------------------------------------
   Generic submit button
   -------------------------------------------------------------------------- */
.btn-submit {
  background: var(--accent);
  color: var(--paper);
  border: none;
  padding: 10px 28px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s;
  margin-top: 8px;
}
.btn-submit:hover { background: var(--accent-deep); }

/* --------------------------------------------------------------------------
   Lightbox
   -------------------------------------------------------------------------- */
.lightbox-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}
.lightbox-overlay.active { display: flex; }
.lightbox-overlay img {
  max-width: 95vw;
  max-height: 95vh;
  object-fit: contain;
}
.lightbox-close {
  position: fixed;
  top: 20px;
  right: 24px;
  color: var(--paper);
  font-size: 2rem;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 2001;
  line-height: 1;
}

/* --------------------------------------------------------------------------
   Topo marks
   -------------------------------------------------------------------------- */
.topo-mark {
  stroke: var(--accent);
  stroke-linejoin: round;
  fill: none;
  display: block;
  overflow: visible;
}

/* --------------------------------------------------------------------------
   Empty state
   -------------------------------------------------------------------------- */
.empty-state {
  text-align: center;
  padding: var(--space-8) 0;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   Responsive overrides
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .entry-item {
    grid-template-columns: 1fr;
    padding: 18px 0;
    gap: 6px;
  }
  .tag-filter-bar {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
  }
  .tag-btn {
    white-space: nowrap;
    flex-shrink: 0;
    min-height: 36px;
  }
}

/* ==========================================================================
   MASTHEAD + PAGE IDENTITY REFACTOR
   ========================================================================== */

/* ---------- Tokens ---------- */
:root {
  --spruce:      #0F291D;
  --spruce-soft: #2E5240;
  --font-chrome: "Courier Prime", "Courier New", monospace;
}

/* ---------- Masthead ---------- */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding-top: var(--space-1);
  padding-bottom: 0.85rem;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
  margin-left: calc(-1 * var(--space-6));
  margin-right: calc(-1 * var(--space-6));
  border-bottom: 1px solid rgba(15, 41, 29, 0.22);
  margin-bottom: var(--space-6);
  position: sticky;
  top: 0;
  z-index: 10;
  background: transparent;
}

/* Reset the bare nav border that basecamp.css adds — border lives on .site-header now */
.site-nav {
  border: none;
  padding-bottom: 0;
}

.site-title {
  font-family: var(--font-chrome);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--spruce);
  text-decoration: none;
  white-space: nowrap;
}
.site-title:hover { color: var(--spruce-soft); }

/* ---------- Active-nav state ---------- */
.site-nav a {
  font-family: "Instrument Sans", system-ui, sans-serif;
  font-weight: 300;
  letter-spacing: 0.04em;
  text-transform: none;
  text-decoration: none;
  padding-bottom: 3px;
}
.site-nav a:hover { border-bottom: 2px solid var(--spruce-soft); }
.site-nav a[aria-current="page"] { border-bottom: 2px solid var(--spruce); }

/* ---------- Page identity — eyebrow, display title, dek ---------- */
.page-eyebrow {
  font-family: var(--font-chrome);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--spruce);
  margin: 3.5rem 0 0.5rem;
}

.page-title {
  font-family: "Fraunces", serif;
  font-size: clamp(2.75rem, 6vw, 4.5rem);
  line-height: 1.02;
  margin: 0;
  font-variation-settings: "opsz" 144;
}

.page-dek {
  font-family: "Newsreader", serif;
  font-style: italic;
  font-size: 1rem;
  color: var(--ink-soft, #6B675A);
  max-width: 42ch;
  margin-top: 0.75rem;
}

/* Mobile: stack nav below title + hamburger when open */
@media (max-width: 768px) {
  .site-header { flex-wrap: wrap; align-items: center; }
  #site-nav { flex-basis: 100%; }
}

/* ---------- Page bullseye — B1 concentric rings ---------- */
@keyframes bs-outer { from { stroke-dashoffset: 230 } to { stroke-dashoffset: 0 } }
@keyframes bs-mid   { from { stroke-dashoffset: 155 } to { stroke-dashoffset: 0 } }
@keyframes bs-inner { from { stroke-dashoffset: 90  } to { stroke-dashoffset: 0 } }
@keyframes bs-dot   { from { fill-opacity: 0 }        to { fill-opacity: 1 } }

.page-title-group {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-top: 1rem;
  margin-bottom: var(--space-6);
}
.page-eyebrow + .page-title-group { margin-top: 0; }

.page-bullseye {
  flex-shrink: 0;
  width: clamp(52px, 7vw, 72px);
  height: clamp(52px, 7vw, 72px);
}
.page-bullseye .ring-outer { animation: bs-outer 0.65s cubic-bezier(.4,0,.2,1) 0.10s both; }
.page-bullseye .ring-mid   { animation: bs-mid   0.55s cubic-bezier(.4,0,.2,1) 0.60s both; }
.page-bullseye .ring-inner { animation: bs-inner 0.45s cubic-bezier(.4,0,.2,1) 1.00s both; }
.page-bullseye .ring-dot   { animation: bs-dot   0.25s ease                    1.40s both; }

@media (prefers-reduced-motion: reduce) {
  .page-bullseye .ring-outer,
  .page-bullseye .ring-mid,
  .page-bullseye .ring-inner { animation: none; stroke-dashoffset: 0; }
  .page-bullseye .ring-dot   { animation: none; fill-opacity: 1; }
}