/* Bizarre Dockyard — Layout */

/* --- Container --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  transition: background-color var(--transition-slow), border-color var(--transition-slow);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-amber);
  animation: pulse 2s ease-in-out infinite;
}

.site-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 900;
  font-style: italic;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.site-tagline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: var(--space-xs);
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

/* --- Navigation --- */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: var(--space-sm) var(--space-sm);
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  right: 50%;
  height: 2px;
  background-color: var(--accent-green);
  transition: left var(--transition-base), right var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  left: 0;
  right: 0;
}

/* --- Theme Toggle --- */
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.theme-toggle:hover {
  border-color: var(--accent-green);
  color: var(--text-primary);
}

/* --- Focus Toggle (concept #17) --- */
.focus-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color var(--transition-fast),
              color var(--transition-fast),
              background-color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.focus-toggle:hover {
  border-color: var(--accent-amber);
  color: var(--text-primary);
}

.focus-toggle--on {
  background-color: var(--accent-amber);
  border-color: var(--accent-amber);
  color: var(--bg-primary);
}

.focus-toggle--on:hover {
  background-color: var(--accent-amber);
  color: var(--bg-primary);
}

/* --- Focus Mode body state --- */
body.focus-mode .site-header {
  opacity: 0.2;
  transition: opacity var(--transition-base);
}

body.focus-mode .site-header:hover,
body.focus-mode .site-header:focus-within {
  opacity: 1;
}

body.focus-mode .site-footer,
body.focus-mode .toc-rail,
body.focus-mode .reading-gauge,
body.focus-mode .reading-progress {
  display: none !important;
}

body.focus-mode .content-narrow {
  max-width: min(72ch, 820px);
}

body.focus-mode .post-content {
  font-size: 1.15rem;
  line-height: 1.85;
}

body.focus-mode {
  background-color: var(--bg-focus, var(--bg-primary));
  transition: background-color var(--transition-slow);
}

/* Slight bg shift — warmer in light, darker in dark */
:root {
  --bg-focus: #faf4e6;
}
[data-theme="dark"] {
  --bg-focus: #0b0e13;
}

@media (max-width: 767px) {
  .focus-toggle-label {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  body.focus-mode,
  body.focus-mode .site-header {
    transition: none;
  }
}

/* --- Mobile Nav --- */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  cursor: pointer;
}

/* --- Main Content --- */
.site-main {
  margin-top: var(--header-height);
  min-height: calc(100vh - var(--header-height) - 60px);
  padding: var(--space-2xl) 0;
}

/* --- Post Grid --- */
.post-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

/* --- Content Width (for post reading) --- */
.content-narrow {
  max-width: var(--content-width);
  margin: 0 auto;
}

/* --- Footer (System Status Footer, concept #13) --- */
.site-footer {
  border-top: 1px solid var(--accent-green);
  padding: var(--space-xl) 0 var(--space-md);
  margin-top: var(--space-2xl, var(--space-xl));
  background-color: var(--bg-secondary);
  transition: border-color var(--transition-slow), background-color var(--transition-slow);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1.4fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px dashed var(--border);
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-col-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-amber);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-xs);
}

.footer-callsign {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer-brand {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.footer-tagline {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.footer-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--accent-green);
}

.footer-readout {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-readout-row {
  display: grid;
  grid-template-columns: 70px 1fr;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.footer-readout-row dt {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer-readout-row dd {
  color: var(--text-primary);
  margin: 0;
}

.footer-swatches {
  display: flex;
  gap: 6px;
  margin-top: var(--space-sm);
}

.swatch {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  border: 1px solid var(--border);
  display: inline-block;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-bottom-right {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.status-dot--small {
  width: 6px;
  height: 6px;
}

/* Legacy footer-meta / footer-links shims (in case any partial still uses them) */
.footer-links {
  display: flex;
  gap: var(--space-md);
}

.footer-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* --- Reading Progress Bar --- */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-amber));
  z-index: 200;
  width: 0%;
  transition: width 0.1s linear;
}

/* --- Reading Gauge (concept #5) --- */
.reading-gauge {
  --gauge-marker-color: var(--accent-amber);
  position: fixed;
  top: calc(var(--header-height, 60px) + 24px);
  right: 24px;
  bottom: 24px;
  width: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  z-index: 150;
  pointer-events: none;
}

.reading-gauge[data-category="rust"]       { --gauge-marker-color: var(--accent-green); }
.reading-gauge[data-category="kubernetes"] { --gauge-marker-color: var(--accent-cyan); }
.reading-gauge[data-category="book-reviews"] { --gauge-marker-color: var(--accent-red); }
.reading-gauge[data-category="poetry"]     { --gauge-marker-color: var(--accent-amber); }
.reading-gauge[data-category="writing"]    { --gauge-marker-color: var(--accent-cyan); }
.reading-gauge[data-category="essays"]     { --gauge-marker-color: var(--accent-green); }

.reading-gauge-track {
  position: relative;
  flex: 1;
  width: 6px;
  background-color: var(--border);
  border-radius: 3px;
  overflow: visible;
}

.reading-gauge-fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: linear-gradient(
    to bottom,
    var(--accent-amber),
    var(--accent-green),
    var(--gauge-marker-color, var(--accent-amber))
  );
  border-radius: 3px;
  transition: height 0.1s linear;
}

.reading-gauge-marker {
  position: absolute;
  top: 0;
  left: 50%;
  width: 16px;
  height: 16px;
  transform: translateX(-50%) rotate(45deg);
  background-color: var(--gauge-marker-color);
  border: 1px solid var(--bg-primary);
  border-radius: 2px;
  box-shadow: 0 0 8px -2px var(--gauge-marker-color);
  transition: top 0.1s linear;
}

.reading-gauge-label {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.3em;
  color: var(--text-muted);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  margin-top: var(--space-xs);
}

/* Hide gauge on narrow viewports — top bar handles it */
@media (max-width: 899px) {
  .reading-gauge {
    display: none;
  }
}

/* When gauge is visible (>=900px), hide the top bar to avoid duplicates */
@media (min-width: 900px) {
  .reading-progress {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reading-gauge-fill,
  .reading-gauge-marker {
    transition: none;
  }
}

/* --- Responsive --- */
@media (max-width: 1023px) {
  .post-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .post-grid {
    grid-template-columns: 1fr;
  }

  .site-tagline {
    display: none;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: var(--space-md);
    gap: 0;
  }

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

  .nav-link {
    padding: var(--space-sm) var(--space-md);
    width: 100%;
  }

  .nav-link::after {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .header-right {
    gap: var(--space-sm);
  }

  .footer-inner {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 479px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Floating TOC Rail (concept #10) --- */
.toc-rail {
  position: fixed;
  top: 50%;
  right: 64px;
  transform: translateY(-50%);
  z-index: 140;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  max-height: 70vh;
}

.toc-rail-label {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.3em;
  color: var(--text-muted);
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

.toc-rail-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--space-xs) 0;
  overflow-y: auto;
}

.toc-rail-dot {
  position: relative;
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--border);
  border: 1px solid transparent;
  transition: background-color var(--transition-fast),
              transform var(--transition-fast),
              border-color var(--transition-fast);
}

.toc-rail-dot--h3 {
  width: 6px;
  height: 6px;
  margin-left: 8px;
  opacity: 0.7;
}

.toc-rail-dot:hover {
  background-color: var(--accent-amber);
  transform: scale(1.3);
}

.toc-rail-dot--active {
  background-color: var(--accent-amber);
  border-color: var(--accent-amber);
  transform: scale(1.4);
  box-shadow: 0 0 10px -1px var(--accent-amber);
}

.toc-rail-dot-label {
  position: absolute;
  right: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 4px 8px;
  border-radius: var(--border-radius);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.toc-rail-dot:hover .toc-rail-dot-label,
.toc-rail-dot--active .toc-rail-dot-label {
  opacity: 1;
}

.toc-rail-toggle {
  display: none;
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--accent-amber);
  color: var(--accent-amber);
  font-size: 1.3rem;
  cursor: pointer;
  z-index: 160;
  box-shadow: var(--card-shadow-hover);
}

/* Mobile collapse */
@media (max-width: 899px) {
  .toc-rail {
    right: 0;
    top: auto;
    bottom: 70px;
    transform: none;
    max-height: none;
  }

  .toc-rail-label {
    display: none;
  }

  .toc-rail-list {
    display: none;
    position: fixed;
    right: 16px;
    bottom: 70px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: var(--space-md);
    max-height: 60vh;
    overflow-y: auto;
    flex-direction: column;
    gap: var(--space-xs);
    align-items: stretch;
  }

  .toc-rail--expanded .toc-rail-list {
    display: flex;
  }

  .toc-rail-dot {
    width: auto;
    height: auto;
    background-color: transparent !important;
    border: none !important;
    border-left: 2px solid var(--border) !important;
    border-radius: 0;
    padding: 4px 8px;
    text-align: left;
    transform: none !important;
    box-shadow: none !important;
  }

  .toc-rail-dot--h3 {
    margin-left: 16px;
    opacity: 1;
  }

  .toc-rail-dot:hover {
    border-left-color: var(--accent-amber) !important;
  }

  .toc-rail-dot--active {
    border-left-color: var(--accent-amber) !important;
  }

  .toc-rail-dot-label {
    position: static;
    transform: none;
    opacity: 1 !important;
    background: none;
    border: none;
    padding: 0;
    color: var(--text-primary);
    white-space: normal;
    max-width: 240px;
  }

  .toc-rail-dot--active .toc-rail-dot-label {
    color: var(--accent-amber);
  }

  .toc-rail-toggle {
    display: block;
  }
}

@media (prefers-reduced-motion: reduce) {
  .toc-rail-dot {
    transition: none;
  }
}