/* =============================================
   The Pilot's Way — Airman Theme
   Aviation cockpit aesthetic
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@300;400;500;600;700&family=Crimson+Pro:ital,wght@0,300;0,400;0,600;1,300;1,400&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Dark theme (default) ───────────────────── */
:root,
[data-theme="dark"] {
  --sky-deep:    #070d1a;
  --sky-mid:     #0d1b35;
  --sky-panel:   #111f3d;
  --sky-card:    #152445;
  --sky-border:  #1e3360;
  --amber:       #f59e0b;
  --amber-dim:   #b07308;
  --amber-glow:  rgba(245,158,11,0.12);
  --horizon:     #38bdf8;
  --horizon-dim: #1e7da8;
  --text-main:   #e2eaf8;
  --text-muted:  #7a94be;
  --text-dim:    #3d5480;
  --white:       #ffffff;
  --red-warn:    #ef4444;
  --green-ok:    #22c55e;
  --hero-plane-opacity: 0.025;
  --scanline-opacity: 0.03;
  --bg-gradient-1: rgba(56,189,248,0.04);
  --bg-gradient-2: rgba(245,158,11,0.03);
}

/* ── Light theme ────────────────────────────── */
[data-theme="light"] {
  --sky-deep:    #f0f4fc;
  --sky-mid:     #e2e9f8;
  --sky-panel:   #ffffff;
  --sky-card:    #f8faff;
  --sky-border:  #c5d0e8;
  --amber:       #c47900;
  --amber-dim:   #9a5f00;
  --amber-glow:  rgba(196,121,0,0.10);
  --horizon:     #0369a1;
  --horizon-dim: #024e7a;
  --text-main:   #1a2540;
  --text-muted:  #4a5d82;
  --text-dim:    #8da0c0;
  --white:       #1a2540;
  --red-warn:    #dc2626;
  --green-ok:    #16a34a;
  --hero-plane-opacity: 0.04;
  --scanline-opacity: 0;
  --bg-gradient-1: rgba(3,105,161,0.03);
  --bg-gradient-2: rgba(196,121,0,0.02);
}

/* Respect OS preference if no manual choice saved */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --sky-deep:    #f0f4fc;
    --sky-mid:     #e2e9f8;
    --sky-panel:   #ffffff;
    --sky-card:    #f8faff;
    --sky-border:  #c5d0e8;
    --amber:       #c47900;
    --amber-dim:   #9a5f00;
    --amber-glow:  rgba(196,121,0,0.10);
    --horizon:     #0369a1;
    --horizon-dim: #024e7a;
    --text-main:   #1a2540;
    --text-muted:  #4a5d82;
    --text-dim:    #8da0c0;
    --white:       #1a2540;
    --red-warn:    #dc2626;
    --green-ok:    #16a34a;
    --hero-plane-opacity: 0.04;
    --scanline-opacity: 0;
    --bg-gradient-1: rgba(3,105,161,0.03);
    --bg-gradient-2: rgba(196,121,0,0.02);
  }
}

:root {
  --font-head:   'Rajdhani', sans-serif;
  --font-body:   'Crimson Pro', Georgia, serif;
  --font-mono:   'JetBrains Mono', monospace;
  --radius:      4px;
  --radius-lg:   8px;
  --transition:  0.2s ease;
  --sidebar-w:   280px;
  --content-max: 760px;
}

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

html { scroll-behavior: smooth; font-size: 18px; }

body {
  background: var(--sky-deep);
  color: var(--text-main);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.75;
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(56,189,248,0.04) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 100%, rgba(245,158,11,0.03) 0%, transparent 60%);
}

/* ── Subtle scanline texture ────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,var(--scanline-opacity, 0.03)) 2px,
    rgba(0,0,0,var(--scanline-opacity, 0.03)) 4px
  );
  pointer-events: none;
  z-index: 0;
  transition: opacity 0.3s ease;
}

/* ── Layout ─────────────────────────────────── */
.site-wrapper {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
}

.content-area {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-w);
  gap: 2rem;
  max-width: 1180px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  width: 100%;
}

.main-content { min-width: 0; }
.sidebar { min-width: 0; }

/* ── Header ─────────────────────────────────── */
.site-header {
  background: linear-gradient(180deg, var(--sky-deep) 0%, var(--sky-mid) 100%);
  border-bottom: 1px solid var(--sky-border);
  position: relative;
  overflow: hidden;
}

.site-header::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
  opacity: 0.4;
}

.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.2rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-branding { text-decoration: none; flex-shrink: 0; }

.site-title {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white);
  line-height: 1;
  margin-bottom: 0.2rem;
}

.site-title span {
  color: var(--amber);
}

.site-tagline {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* ── Nav ─────────────────────────────────────── */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.site-nav a {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--amber);
  border-color: var(--sky-border);
  background: var(--amber-glow);
}

.lang-switch {
  font-family: var(--font-mono) !important;
  font-size: 0.7rem !important;
  letter-spacing: 0.1em !important;
  color: var(--horizon) !important;
  border-color: var(--sky-border) !important;
  margin-left: 0.5rem;
}

.lang-switch:hover {
  background: rgba(56,189,248,0.08) !important;
  border-color: var(--horizon) !important;
  color: var(--horizon) !important;
}

/* ── Hero strip (homepage) ───────────────────── */
.hero {
  background: linear-gradient(135deg, var(--sky-mid) 0%, var(--sky-panel) 100%);
  border-bottom: 1px solid var(--sky-border);
  padding: 3rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '✈';
  position: absolute;
  font-size: 20rem;
  opacity: var(--hero-plane-opacity, 0.025);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-15deg);
  pointer-events: none;
  color: var(--horizon);
}

.hero-title {
  font-family: var(--font-head);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.hero-title span { color: var(--amber); }

.hero-sub {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--horizon);
  text-transform: uppercase;
}

/* ── Post list ───────────────────────────────── */
.post-list { display: flex; flex-direction: column; gap: 1.5rem; }

.post-card {
  background: var(--sky-panel);
  border: 1px solid var(--sky-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: grid;
  grid-template-columns: 1fr;
}

.post-card:hover {
  border-color: var(--amber-dim);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4), 0 0 0 1px var(--amber-glow);
}

.post-card.has-image {
  grid-template-columns: 200px 1fr;
}

.post-card-image {
  overflow: hidden;
  background: var(--sky-mid);
}

.post-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
  opacity: 0.85;
}

.post-card:hover .post-card-image img {
  transform: scale(1.05);
  opacity: 1;
}

.post-card-body {
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.post-date {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}

.post-category {
  font-family: var(--font-head);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--amber);
  background: var(--amber-glow);
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
  text-decoration: none;
}

.post-title {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.post-title a {
  color: var(--text-main);
  text-decoration: none;
  transition: color var(--transition);
}

.post-title a:hover { color: var(--amber); }

.post-excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-readmore {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--horizon);
  text-decoration: none;
  margin-top: auto;
  align-self: flex-start;
  text-transform: uppercase;
}

.post-readmore:hover { color: var(--amber); }

/* ── Single post ─────────────────────────────── */
.post-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--sky-border);
}

.post-header .post-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  margin-bottom: 0.75rem;
  color: var(--white);
}

.post-header .post-title a { color: var(--white); }

.post-featured-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 2rem;
  border: 1px solid var(--sky-border);
}

.post-featured-image img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  display: block;
}

/* ── Post body content ───────────────────────── */
.post-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-main);
}

.post-content h1, .post-content h2, .post-content h3,
.post-content h4, .post-content h5, .post-content h6 {
  font-family: var(--font-head);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--white);
  margin: 2rem 0 0.75rem;
  line-height: 1.2;
}

.post-content h2 {
  font-size: 1.5rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--sky-border);
}

.post-content h3 { font-size: 1.2rem; color: var(--amber); }

.post-content p { margin-bottom: 1.25rem; }

.post-content a {
  color: var(--horizon);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition);
}

.post-content a:hover { color: var(--amber); }

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--sky-border);
  display: block;
  margin: 1.5rem auto;
}

.post-content blockquote {
  border-left: 3px solid var(--amber);
  background: var(--sky-panel);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  color: var(--text-muted);
  font-style: italic;
}

.post-content pre, .post-content code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.post-content pre {
  background: var(--sky-mid);
  border: 1px solid var(--sky-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.post-content code {
  background: var(--sky-panel);
  padding: 0.1em 0.35em;
  border-radius: 3px;
  color: var(--amber);
  font-size: 0.85em;
}

.post-content pre code {
  background: none;
  padding: 0;
  color: var(--text-main);
}

.post-content ul, .post-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

.post-content li { margin-bottom: 0.35rem; }

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.post-content th {
  background: var(--sky-panel);
  font-family: var(--font-head);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--amber);
  padding: 0.6rem 1rem;
  border: 1px solid var(--sky-border);
  text-align: left;
}

.post-content td {
  padding: 0.5rem 1rem;
  border: 1px solid var(--sky-border);
  vertical-align: top;
}

.post-content tr:nth-child(even) td {
  background: rgba(13,27,53,0.5);
}

/* Video embeds */
.post-content iframe {
  max-width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--sky-border);
  display: block;
  margin: 1.5rem auto;
}

/* ── Post tags ───────────────────────────────── */
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--sky-border);
}

.tag-pill {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: var(--sky-panel);
  border: 1px solid var(--sky-border);
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
  text-decoration: none;
  transition: all var(--transition);
}

.tag-pill:hover {
  color: var(--amber);
  border-color: var(--amber-dim);
  background: var(--amber-glow);
}

/* ── Back link ───────────────────────────────── */
.back-link {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  margin-bottom: 1.5rem;
  transition: color var(--transition);
}

.back-link:hover { color: var(--amber); }

/* ── Pagination ──────────────────────────────── */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--sky-border);
}

.pagination a {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--horizon);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border: 1px solid var(--sky-border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.pagination a:hover {
  color: var(--amber);
  border-color: var(--amber-dim);
  background: var(--amber-glow);
}

.pagination-info {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}

/* ── Sidebar ─────────────────────────────────── */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sidebar-widget {
  background: var(--sky-panel);
  border: 1px solid var(--sky-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.widget-header {
  background: var(--sky-mid);
  border-bottom: 1px solid var(--sky-border);
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.widget-header-icon {
  color: var(--amber);
  font-size: 0.8rem;
}

.widget-title {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.widget-body { padding: 1rem; }

/* Timeline widget */
.timeline-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  max-height: 340px;
  overflow-y: auto;
}

.timeline-list::-webkit-scrollbar { width: 4px; }
.timeline-list::-webkit-scrollbar-track { background: var(--sky-mid); }
.timeline-list::-webkit-scrollbar-thumb { background: var(--sky-border); }

.timeline-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(30,51,96,0.5);
  font-size: 0.78rem;
}

.timeline-item:last-child { border-bottom: none; }

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--amber);
  white-space: nowrap;
  padding-top: 0.1rem;
  letter-spacing: 0.04em;
}

.timeline-text {
  color: var(--text-muted);
  line-height: 1.4;
}

/* Tags cloud widget */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.tag-cloud a {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  background: var(--sky-mid);
  border: 1px solid var(--sky-border);
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
  text-decoration: none;
  transition: all var(--transition);
}

.tag-cloud a:hover {
  color: var(--amber);
  border-color: var(--amber-dim);
  background: var(--amber-glow);
}

/* Recent posts widget */
.recent-posts-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.recent-post-item {
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(30,51,96,0.5);
}

.recent-post-item:last-child { border-bottom: none; }

.recent-post-item a {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-decoration: none;
  line-height: 1.4;
  transition: color var(--transition);
  display: block;
  margin-bottom: 0.2rem;
}

.recent-post-item a:hover { color: var(--amber); }

.recent-post-date {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}

/* ── Page content ────────────────────────────── */
.page-header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--sky-border);
}

.page-title {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--white);
}

/* ── Taxonomy pages ──────────────────────────── */
.taxonomy-header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--sky-border);
}

.taxonomy-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.taxonomy-name {
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--amber);
}

/* ── Footer ──────────────────────────────────── */
.site-footer {
  background: var(--sky-mid);
  border-top: 1px solid var(--sky-border);
  padding: 1.5rem;
  text-align: center;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
  opacity: 0.3;
}

.footer-text {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  text-transform: uppercase;
}

.footer-text a {
  color: var(--horizon);
  text-decoration: none;
}

.footer-text a:hover { color: var(--amber); }

/* ── Instrument panel divider ────────────────── */
.instrument-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.5rem 0;
  color: var(--text-dim);
}

.instrument-divider::before,
.instrument-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--sky-border);
}

.instrument-divider span {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* ── Theme toggle button ─────────────────────── */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--sky-border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all var(--transition);
  flex-shrink: 0;
  padding: 0;
  line-height: 1;
}

.theme-toggle:hover {
  color: var(--amber);
  border-color: var(--amber-dim);
  background: var(--amber-glow);
}

.theme-toggle .icon-dark  { display: inline; }
.theme-toggle .icon-light { display: none;   }

[data-theme="light"] .theme-toggle .icon-dark  { display: none;   }
[data-theme="light"] .theme-toggle .icon-light { display: inline; }

/* smooth all colour transitions on theme change */
body, .site-header, .post-card, .sidebar-widget,
.site-nav a, .tag-pill, .post-content a, .pagination a {
  transition: background-color 0.25s ease, color 0.25s ease,
              border-color 0.25s ease;
}

/* ── Responsive ──────────────────────────────── */
@media (max-width: 900px) {
  .content-area {
    grid-template-columns: 1fr;
  }
  .sidebar { order: -1; }
  .post-card.has-image {
    grid-template-columns: 1fr;
  }
  .post-card-image { height: 160px; }
}

@media (max-width: 600px) {
  html { font-size: 16px; }
  .header-inner { flex-direction: column; align-items: flex-start; }
  .hero-title { font-size: 1.8rem; }
  .post-header .post-title { font-size: 1.5rem; }
}

/* ── Utility ─────────────────────────────────── */
.text-amber  { color: var(--amber); }
.text-horizon { color: var(--horizon); }
.text-muted  { color: var(--text-muted); }
.font-mono   { font-family: var(--font-mono); font-size: 0.8rem; }

.reading-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--amber), var(--horizon));
  z-index: 1000;
  transition: width 0.1s linear;
}