/* ============================================================
   BLOG.CSS — Secret Diary of a Guitarist
   Obsidian-style dark blog for robertobarlocci.com
   Used by: blog/index.html · blog/*.html · blog/de/*.html
   ============================================================ */

/* ── Custom properties (extend landing.css) ────────────────── */
:root {
  --blog-purple:     #9d8cfc;
  --blog-purple-dim: rgba(157, 140, 252, 0.12);
  --blog-purple-glow:rgba(157, 140, 252, 0.25);
  --blog-gold:       var(--accent);               /* #c8a04e */
  --blog-gold-dim:   var(--accent-dim);
  --blog-radius:     8px;
  --blog-max:        720px;
  --conn-out-border: var(--blog-gold);
  --conn-back-border:var(--blog-purple);
}

/* ── Navbar layout on blog pages ────────────────────────────── */
/* Keep brand left, push nav-links + lang-toggle to the right,
   matching the two-item layout on landing/discography pages.
   Without this, `justify-content: space-between` in landing.css
   would center the nav-links between brand and lang-toggle. */
.site-nav .nav-links {
  margin-left: auto;
}

/* ── Mobile navigation (blog) ───────────────────────────────── */
/* On mobile, match the music/landing pages exactly: landing.css already
   makes .nav-links a fullscreen overlay with plain <a> items. The blog's
   extra EN/DE toggle would otherwise sit outside the drawer, so the
   generator emits two bonus <a class="mobile-lang-link"> items inside
   .nav-links that are hidden on desktop and shown on mobile in place of
   the outer .lang-toggle. No drawer rebuild needed. */
.mobile-lang-link { display: none; }

@media (max-width: 768px) {
  .site-nav .nav-links     { margin-left: 0; }
  .site-nav > .lang-toggle { display: none; }

  /* .site-nav.scrolled has backdrop-filter, which in WebKit promotes it to
     the containing block for `position: fixed` descendants. That makes
     `inset: 0` on .nav-links resolve against the ~60px nav bar instead of
     the viewport, so most drawer items end up above the visible area.
     Force an explicit viewport height to bypass that. */
  .site-nav .nav-links {
    height:     100vh;
    height:     100dvh;
    overflow-y: auto;
  }

  .site-nav .mobile-lang-link {
    display:        block;
    font-family:    var(--font-heading);
    font-weight:    700;
    letter-spacing: 0.15em;
    font-size:      0.85rem;
    color:          var(--blog-purple);
    text-decoration:none;
  }
  .site-nav .mobile-lang-link[aria-current="true"] { opacity: 0.5; }
}

/* ── Language toggle ────────────────────────────────────────── */
.lang-toggle {
  display:     flex;
  align-items: center;
  gap:         0.25rem;
  margin-left: 1.2rem;
  flex-shrink: 0;
}

.lang-btn {
  font-family:    var(--font-heading);
  font-size:      0.7rem;
  font-weight:    700;
  letter-spacing: 0.08em;
  padding:        0.25rem 0.45rem;
  border-radius:  4px;
  color:          var(--text-muted);
  text-transform: uppercase;
  transition:     color 0.2s, background 0.2s;
  text-decoration:none;
  line-height:    1;
}

.lang-btn:hover {
  color: var(--text);
}

.lang-btn.active {
  background: var(--blog-purple-dim);
  color:      var(--blog-purple);
}

.lang-sep {
  color:     var(--text-subtle);
  font-size: 0.65rem;
  line-height: 1;
}

/* ── Blog index: page header ────────────────────────────────── */
.blog-page-header {
  padding: 7rem 0 2.5rem;
  text-align: center;
}

.blog-header-inner { max-width: 600px; margin: 0 auto; }

/* The generic .section-label in landing.css adds a trailing bar via ::after,
   which looks odd in a centred blog header. Render it as a simple centred
   tagline instead. */
.blog-page-header .section-label {
  display:         inline-flex;
  justify-content: center;
  gap:             0;
}
.blog-page-header .section-label::after { content: none; }

.blog-index-desc {
  font-size:   0.95rem;
  color:       var(--text-muted);
  max-width:   520px;
  margin:      0.75rem auto 0;
  line-height: 1.75;
}

/* ── Category filter bar ────────────────────────────────────── */
.cat-filter-bar {
  display:         flex;
  flex-wrap:       wrap;
  justify-content: center;
  gap:             0.5rem;
  margin:          0 auto 2.5rem;
  max-width:       860px;
  padding:         0 0.5rem;
}

.cat-filter {
  font-family:    var(--font-heading);
  font-size:      0.72rem;
  font-weight:    700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color:          var(--text-muted);
  background:     transparent;
  border:         1px solid var(--border);
  border-radius:  999px;
  padding:        0.5rem 1rem;
  cursor:         pointer;
  transition:     color 0.2s, border-color 0.2s, background 0.2s;
  line-height:    1;
}

.cat-filter:hover {
  color:        var(--text);
  border-color: var(--blog-purple);
}

.cat-filter.active {
  color:       var(--blog-purple);
  background:  var(--blog-purple-dim);
  border-color:var(--blog-purple);
}

.cat-filter:focus-visible {
  outline:        2px solid var(--blog-purple);
  outline-offset: 2px;
}

.no-results {
  text-align: center;
  color:      var(--text-muted);
  font-size:  0.9rem;
  margin:     1.5rem 0 2.5rem;
}

/* ── Blog index: post grid ──────────────────────────────────── */
.blog-index-section {
  padding: 2rem 0 6rem;
}

.post-grid {
  display:               grid;
  grid-template-columns: repeat(3, 1fr);
  gap:                   1.5rem;
}

@media (max-width: 960px) {
  .post-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 580px) {
  .post-grid { grid-template-columns: 1fr; }
}

/* ── Post card ──────────────────────────────────────────────── */
.post-card {
  display:          flex;
  flex-direction:   column;
  background:       var(--bg-card);
  border:           1px solid var(--border);
  border-radius:    var(--blog-radius);
  overflow:         hidden;
  text-decoration:  none;
  color:            inherit;
  transition:       transform 0.25s var(--ease-out),
                    border-color 0.25s,
                    box-shadow 0.25s;
}

/* The [hidden] attribute defaults to `display: none`, but the rule above sets
   display: flex, which would win and keep filtered cards visible. Force it. */
.post-card[hidden] { display: none !important; }

.post-card.visible {
  opacity:   1;
  transform: translateY(0);
  transition: opacity 0.45s var(--ease-out), transform 0.45s var(--ease-out),
              border-color 0.25s, box-shadow 0.25s;
}

.post-card:hover {
  border-color: var(--blog-gold);
  box-shadow:   0 6px 28px rgba(200, 160, 78, 0.12);
  transform:    translateY(-4px);
}

.post-card-thumb {
  width:        100%;
  aspect-ratio: 16 / 9;
  overflow:     hidden;
  background:   #0a0a0a;
}

.post-card-thumb img {
  width:      100%;
  height:     100%;
  object-fit: cover;
  transition: transform 0.4s var(--ease-out);
}

.post-card:hover .post-card-thumb img {
  transform: scale(1.04);
}

/* ── Thumb placeholder (posts with no downloadable image) ───── */
.post-card-thumb-placeholder {
  display:         flex;
  flex-direction:  column;
  align-items:     center;
  justify-content: center;
  gap:             0.5rem;
  background:
    radial-gradient(circle at 30% 20%, rgba(157, 140, 252, 0.18), transparent 55%),
    radial-gradient(circle at 70% 80%, rgba(200, 160, 78, 0.14), transparent 60%),
    linear-gradient(135deg, #0f0f14 0%, #1a1520 100%);
  color:           var(--blog-purple);
  position:        relative;
  transition:      filter 0.3s;
}
/* Subtle per-category tint */
.post-card-thumb-placeholder[data-cat="technique"] { color: #8fb8ff; }
.post-card-thumb-placeholder[data-cat="technik"]   { color: #8fb8ff; }
.post-card-thumb-placeholder[data-cat="jazz"]      { color: var(--blog-gold); }
.post-card-thumb-placeholder[data-cat="improvisation"] { color: #ff9ec4; }
.post-card-thumb-placeholder[data-cat="songwriting"]   { color: #9aeac3; }
.post-card-thumb-placeholder[data-cat="gear"]          { color: #d8cfa8; }
.post-card-thumb-placeholder[data-cat="equipment"]     { color: #d8cfa8; }
.post-card-thumb-placeholder[data-cat="theory"]        { color: var(--blog-purple); }
.post-card-thumb-placeholder[data-cat="musiktheorie"]  { color: var(--blog-purple); }

.placeholder-glyph {
  font-size:    3rem;
  line-height:  1;
  opacity:      0.55;
}

.placeholder-cat {
  font-family:    var(--font-heading);
  font-size:      0.7rem;
  font-weight:    700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity:        0.9;
}

.post-card:hover .post-card-thumb-placeholder {
  filter: brightness(1.1);
}

.post-card-body {
  display:        flex;
  flex-direction: column;
  padding:        1.1rem 1.2rem 1.3rem;
  flex:           1;
}

.post-card-meta {
  display:     flex;
  align-items: center;
  gap:         0.75rem;
  margin-bottom: 0.4rem;
}

.post-card-date {
  font-size:      0.72rem;
  color:          var(--blog-gold);
  font-weight:    600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-family:    var(--font-heading);
}

.post-card-rt {
  font-size:  0.7rem;
  color:      var(--text-muted);
  font-family:var(--font-heading);
}

.post-card-cats {
  display:     flex;
  flex-wrap:   wrap;
  gap:         0.3rem;
  margin-bottom: 0.5rem;
}

.post-card-title {
  font-family:   var(--font-heading);
  font-weight:   800;
  font-size:     clamp(0.95rem, 1.5vw, 1.05rem);
  line-height:   1.35;
  color:         var(--text);
  margin-bottom: 0.55rem;
  flex:          1;
}

.post-card-excerpt {
  font-size:     0.82rem;
  color:         var(--text-muted);
  line-height:   1.65;
  margin-bottom: 0.9rem;
  /* clamp to 3 lines */
  display:            -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow:           hidden;
}

.post-card-cta {
  display:        inline-block;
  font-size:      0.75rem;
  font-family:    var(--font-heading);
  font-weight:    700;
  color:          var(--blog-purple);
  letter-spacing: 0.06em;
  margin-top:     auto;
  transition:     color 0.2s;
}

.post-card:hover .post-card-cta {
  color: var(--blog-gold);
}

/* ── Category chip ──────────────────────────────────────────── */
.cat-chip {
  display:        inline-block;
  font-size:      0.65rem;
  font-family:    var(--font-heading);
  font-weight:    700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color:          var(--blog-purple);
  background:     var(--blog-purple-dim);
  padding:        0.18rem 0.55rem;
  border-radius:  4px;
  line-height:    1.6;
  white-space:    nowrap;
}

/* ── Post page: layout ──────────────────────────────────────── */
.post-main {
  max-width:    var(--blog-max);
  margin:       0 auto;
  padding:      7rem 1.5rem 4rem;
}

.post-article {
  margin-bottom: 3rem;
}

/* ── Post header ────────────────────────────────────────────── */
.post-breadcrumb {
  display:       flex;
  align-items:   center;
  gap:           0.4rem;
  flex-wrap:     wrap;
  font-size:     0.75rem;
  color:         var(--text-muted);
  margin-bottom: 1.4rem;
  font-family:   var(--font-heading);
}

.post-breadcrumb a {
  color:       var(--text-muted);
  text-decoration: none;
  transition:  color 0.2s;
}
.post-breadcrumb a:hover { color: var(--blog-gold); }

.bc-sep {
  color:     var(--text-subtle);
  font-size: 0.7rem;
}

.post-header-cats {
  display:     flex;
  flex-wrap:   wrap;
  gap:         0.35rem;
  margin-bottom: 0.85rem;
}

.post-title {
  font-family:   var(--font-heading);
  font-weight:   800;
  font-size:     clamp(1.8rem, 4.5vw, 2.6rem);
  line-height:   1.2;
  color:         var(--text);
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}

.post-subtitle {
  font-size:     1.05rem;
  color:         var(--text-muted);
  line-height:   1.7;
  margin-bottom: 0.9rem;
  font-weight:   400;
  border-left:   3px solid var(--blog-gold);
  padding-left:  0.85rem;
  font-style:    italic;
}

.post-meta {
  display:     flex;
  align-items: center;
  gap:         1rem;
  margin:      0.8rem 0 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.post-date {
  font-size:      0.78rem;
  font-family:    var(--font-heading);
  font-weight:    700;
  color:          var(--blog-gold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.post-read-time {
  font-size:  0.75rem;
  color:      var(--text-muted);
  font-family:var(--font-heading);
}

/* ── Blog body typography ───────────────────────────────────── */
.blog-body {
  font-size:   1rem;
  line-height: 1.8;
  color:       var(--text);
}

.blog-body > * + * {
  margin-top: 1.4rem;
}

.blog-body h2 {
  font-family:   var(--font-heading);
  font-weight:   800;
  font-size:     clamp(1.25rem, 2.5vw, 1.55rem);
  color:         var(--text);
  margin-top:    2.4rem;
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}

.blog-body h3 {
  font-family:   var(--font-heading);
  font-weight:   700;
  font-size:     clamp(1.05rem, 2vw, 1.25rem);
  color:         var(--text);
  margin-top:    2rem;
  margin-bottom: 0.5rem;
}

.blog-body h4 {
  font-family:  var(--font-heading);
  font-weight:  700;
  font-size:    1rem;
  color:        var(--text-muted);
  margin-top:   1.5rem;
  margin-bottom:0.4rem;
  letter-spacing:0.04em;
  text-transform:uppercase;
}

.blog-body p {
  margin-top: 1.1rem;
}

.blog-body ul,
.blog-body ol {
  list-style: disc;
  padding-left: 1.4rem;
  margin-top:   1.1rem;
}

.blog-body ol { list-style: decimal; }

.blog-body li {
  margin-bottom: 0.4rem;
  line-height: 1.75;
}

.blog-body strong { color: var(--text); font-weight: 700; }
.blog-body em     { color: var(--text-muted); font-style: italic; }

/* Internal blog links → purple (obsidian style) */
.blog-body a[href$=".html"]:not([href^="http"]) {
  color:           var(--blog-purple);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition:      color 0.2s;
}
.blog-body a[href$=".html"]:not([href^="http"]):hover {
  color: var(--blog-gold);
}

/* External links → gold */
.blog-body a[href^="http"] {
  color:           var(--blog-gold);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition:      color 0.2s;
}
.blog-body a[href^="http"]:hover {
  color: var(--text);
}

.blog-body blockquote {
  border-left:  3px solid var(--blog-purple);
  padding:      0.6rem 0 0.6rem 1.1rem;
  margin:       1.5rem 0;
  color:        var(--text-muted);
  font-style:   italic;
}

.blog-body pre {
  background:    #111;
  border:        1px solid var(--border);
  border-radius: var(--blog-radius);
  padding:       1rem 1.2rem;
  overflow-x:    auto;
  font-size:     0.85rem;
  line-height:   1.6;
}

.blog-body code {
  background:    rgba(157, 140, 252, 0.08);
  border-radius: 3px;
  padding:       0.1em 0.35em;
  font-size:     0.87em;
  color:         var(--blog-purple);
  font-family:   'SF Mono', 'Fira Code', 'Consolas', monospace;
}

.blog-body pre code {
  background: none;
  padding:    0;
  color:      var(--text);
  font-size:  inherit;
}

.blog-body figure {
  margin: 1.8rem 0;
  text-align: center;
}

.blog-body figure img {
  max-width:    100%;
  border-radius:var(--blog-radius);
  border:       1px solid var(--border);
  box-shadow:   0 4px 20px rgba(0,0,0,0.4);
}

/* Responsive YouTube / video embeds */
.video-wrapper {
  position:     relative;
  width:        100%;
  padding-top:  56.25%; /* 16:9 */
  margin:       2rem 0;
  border-radius:var(--blog-radius);
  overflow:     hidden;
  background:   #000;
  box-shadow:   0 4px 24px rgba(0,0,0,0.5);
}
.video-wrapper iframe {
  position: absolute;
  inset:    0;
  width:    100%;
  height:   100%;
  border:   0;
}

.blog-body figcaption {
  font-size:  0.77rem;
  color:      var(--text-muted);
  margin-top: 0.5rem;
  font-style: italic;
}

/* Standalone images not in figure */
.blog-body img {
  display:       block;
  max-width:     100%;
  height:        auto;
  border-radius: var(--blog-radius);
  margin:        1.4rem auto;
  border:        1px solid var(--border);
  box-shadow:    0 4px 20px rgba(0,0,0,0.35);
}

/* ── Connections section (obsidian backlinks) ───────────────── */
.post-connections {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap:     1.2rem;
  margin:  2.5rem 0 2rem;
  padding-top: 1.5rem;
  border-top:  1px solid var(--border);
}

@media (max-width: 600px) {
  .post-connections { grid-template-columns: 1fr; }
}

.conn-panel {
  background:    var(--bg-card);
  border:        1px solid var(--border);
  border-radius: var(--blog-radius);
  padding:       1rem 1.1rem 1.1rem;
}

.conn-outgoing  { border-left: 3px solid var(--conn-out-border);  }
.conn-backlinks { border-left: 3px solid var(--conn-back-border); }

.conn-title {
  font-family:   var(--font-heading);
  font-size:     0.72rem;
  font-weight:   700;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:         var(--text-muted);
  margin-bottom: 0.65rem;
  display:       flex;
  align-items:   center;
  gap:           0.4rem;
}

.conn-icon {
  font-size: 0.8rem;
  color:     inherit;
}

.conn-count {
  margin-left:  auto;
  background:   var(--border);
  border-radius:99px;
  padding:      0.05rem 0.45rem;
  font-size:    0.65rem;
  color:        var(--text-muted);
}

.conn-list {
  display:        flex;
  flex-direction: column;
  gap:            0.35rem;
}

.conn-item {
  display:         flex;
  align-items:     flex-start;
  gap:             0.5rem;
  font-size:       0.8rem;
  color:           var(--text);
  text-decoration: none;
  padding:         0.3rem 0.4rem;
  border-radius:   5px;
  transition:      background 0.2s, color 0.2s;
  line-height:     1.5;
}

.conn-item:hover {
  background: var(--blog-purple-dim);
  color:      var(--blog-purple);
}

.conn-outgoing  .conn-item { color: var(--blog-gold); }
.conn-backlinks .conn-item { color: var(--blog-purple); }

.conn-outgoing  .conn-item:hover { background: var(--blog-gold-dim); color: var(--blog-gold); }
.conn-backlinks .conn-item:hover { background: var(--blog-purple-dim); }

.conn-arrow {
  flex-shrink: 0;
  opacity:     0.5;
  font-size:   0.75rem;
  margin-top:  0.05rem;
}

.conn-empty {
  font-size:  0.78rem;
  color:      var(--text-subtle);
  font-style: italic;
}

/* ── Post navigation (prev / next) ──────────────────────────── */
.post-nav {
  display:         flex;
  justify-content: space-between;
  gap:             1rem;
  margin-top:      1rem;
  padding-top:     1.5rem;
  border-top:      1px solid var(--border);
}

.post-nav-link {
  display:        flex;
  flex-direction: column;
  gap:            0.3rem;
  max-width:      48%;
  text-decoration:none;
  padding:        0.75rem 0.9rem;
  border:         1px solid var(--border);
  border-radius:  var(--blog-radius);
  background:     var(--bg-card);
  transition:     border-color 0.2s, box-shadow 0.2s;
}

.post-nav-link:hover {
  border-color: var(--blog-purple);
  box-shadow:   0 2px 14px var(--blog-purple-glow);
}

.post-nav-prev { align-items: flex-start; }
.post-nav-next { align-items: flex-end;   margin-left: auto; }

.post-nav-label {
  font-family:    var(--font-heading);
  font-size:      0.65rem;
  font-weight:    700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color:          var(--blog-purple);
}

.post-nav-title {
  font-size:   0.82rem;
  font-family: var(--font-heading);
  font-weight: 600;
  color:       var(--text);
  line-height: 1.4;
}

/* ── Reveal animation (index cards) ────────────────────────── */
/* `.js` is added by the inline bootstrap script as soon as JS runs, so the
   animation only hides content when we actually have a way to un-hide it.
   If JS is blocked or fails, the content stays visible instead of disappearing. */
.js .reveal {
  opacity:    0;
  transform:  translateY(18px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
}
.js .reveal.visible {
  opacity:   1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
}

/* ── Responsive tweaks ──────────────────────────────────────── */
@media (max-width: 960px) {
  .cat-filter-bar {
    gap: 0.4rem;
    margin-bottom: 1.75rem;
  }
  .cat-filter {
    font-size: 0.68rem;
    padding: 0.42rem 0.85rem;
  }
}

@media (max-width: 720px) {
  .post-main {
    padding: 5.5rem 1.1rem 3rem;
  }

  .post-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
  }

  .post-subtitle {
    font-size:   0.95rem;
    padding-left: 0.7rem;
  }

  .blog-page-header {
    padding: 5.5rem 1rem 2rem;
  }

  .blog-index-section {
    padding: 1rem 0 4rem;
  }

  .post-grid { gap: 1.1rem; }

  .post-card-body { padding: 0.95rem 1rem 1.1rem; }

  .post-card-title  { font-size: 0.98rem; }
  .post-card-excerpt{ font-size: 0.8rem; -webkit-line-clamp: 2; }

  .cat-filter-bar {
    /* Horizontal scroll on very small screens so tags never wrap into a tall
       vertical stack that pushes the grid down. */
    flex-wrap:      nowrap;
    overflow-x:     auto;
    justify-content:flex-start;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding:        0 1rem 0.5rem;
    margin-bottom:  1.5rem;
    scrollbar-width:none;
  }
  .cat-filter-bar::-webkit-scrollbar { display: none; }
  .cat-filter { scroll-snap-align: start; flex-shrink: 0; }

  .post-breadcrumb { font-size: 0.7rem; }

  .post-meta {
    flex-wrap:     wrap;
    gap:           0.6rem;
    margin-bottom: 1.5rem;
    padding-bottom:1rem;
  }

  .post-nav {
    flex-direction: column;
    gap: 0.8rem;
  }
  .post-nav-link {
    max-width: 100%;
  }
  .post-nav-next {
    align-items: flex-start;
    margin-left: 0;
  }

  .post-connections {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .video-wrapper iframe { border-radius: 4px; }

  .lang-toggle   { margin-left: 0.75rem; }
  .lang-btn      { padding: 0.3rem 0.55rem; }
}

@media (max-width: 460px) {
  .blog-page-header {
    padding: 4.5rem 1rem 1.5rem;
  }
  .blog-page-header .section-label { font-size: 0.6rem; letter-spacing: 0.28em; }
  .blog-index-desc { font-size: 0.88rem; }

  .post-card-thumb-placeholder .placeholder-glyph { font-size: 2.5rem; }

  .lang-toggle { margin-left: 0.5rem; }
}