/* ============================================================
   Photoblog — clintmcmahon.com
   Minimal editorial design
   ============================================================ */

*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: #fff;
  color: #111;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
               Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---- Fixed header ----------------------------------------- */

.pb-header {
  padding: 1.4rem 2.5rem;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1rem;
}

.pb-site-name {
  font-size: 0.69rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #111;
  text-decoration: none;
  transition: color 0.2s;
}
.pb-site-name:hover { color: #999; }

.pb-header-byline {
  font-size: 0.69rem;
  color: #777;
  letter-spacing: 0.04em;
  text-align: center;
  white-space: nowrap;
}

.pb-header-byline-link {
  color: #555;
  text-decoration: none;
  transition: color 0.2s;
}
.pb-header-byline-link:hover { color: #111; }

.pb-date-above {
  font-size: 0.69rem;
  color: #333;
  letter-spacing: 0.07em;
  font-variant-numeric: tabular-nums;
  width: 100%;
  max-width: min(92vw, 1000px);
  margin: 0 0 0.6rem 0;
}

/* ---- Main layout ------------------------------------------ */

.pb-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem 2.5rem 4rem;
}

/* ---- Image rows ------------------------------------------- */

.pb-rows {
  width: 100%;
  max-width: min(92vw, 1000px);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* Each row is a horizontal strip — one or more images side by side */
.pb-row {
  display: flex;
  gap: 4px;
  width: 100%;
}

.pb-image {
  flex: 1;
  min-width: 0;
  display: block;
  width: 0;        /* forces equal flex distribution regardless of natural size */
  height: auto;
  opacity: 0;
  transition: opacity 0.55s ease;
}
.pb-image.is-loaded { opacity: 1; }

/* ---- Metadata row below image ----------------------------- */

.pb-meta {
  width: 100%;
  max-width: min(92vw, 1000px);
  margin-top: 1.4rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
}

.pb-caption-area {
  flex: 1;
  min-width: 0;
}

.pb-title {
  font-size: 0.82rem;
  font-weight: 500;
  color: #111;
  margin: 0 0 0.4rem;
}

.pb-caption {
  font-size: 0.8rem;
  color: #222;
  line-height: 1.7;
  margin: 0;
}
.pb-caption p { margin: 0 0 0.5em; }

.pb-detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.75rem;
}

/* ---- Navigation ------------------------------------------- */

.pb-nav {
  display: flex;
  justify-content: space-between;
  flex-shrink: 0;
  padding-top: 0.1rem;
}

.pb-nav-next {
  margin-left: auto;
}

.pb-nav a {
  font-size: 0.69rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #666;
  text-decoration: none;
  transition: color 0.18s;
}
.pb-nav a:hover { color: #111; }

.pb-nav--top {
  width: 100%;
  max-width: min(92vw, 1000px);
  margin-bottom: 0.75rem;
}

/* ---- Comments --------------------------------------------- */

.pb-comments {
  width: 100%;
  max-width: min(92vw, 1000px);
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid #ebebeb;
}

.pb-comments-heading {
  font-size: 0.69rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #555;
  margin: 0 0 1.75rem;
}

.pb-comment-list {
  list-style: none;
  margin: 0 0 2.5rem;
  padding: 0;
}

.pb-comment-item {
  padding: 0.9rem 0;
  border-bottom: 1px solid #f2f2f2;
}

.pb-comment-meta {
  font-size: 0.75rem;
  margin-bottom: 0.3rem;
}

.pb-comment-author {
  font-weight: 500;
  color: #111;
}

.pb-comment-time {
  color: #888;
  margin-left: 0.5rem;
}

.pb-comment-body {
  font-size: 0.8rem;
  color: #555;
  line-height: 1.65;
}

.pb-no-comments {
  font-size: 0.8rem;
  color: #666;
  margin: 0 0 2rem;
}

/* ---- Comment form ----------------------------------------- */

.pb-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 420px;
}

.pb-input,
.pb-textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid #e0e0e0;
  padding: 0.45rem 0;
  font-size: 0.8rem;
  font-family: inherit;
  color: #111;
  outline: none;
  resize: none;
  transition: border-color 0.2s;
}
.pb-input:focus,
.pb-textarea:focus {
  border-color: #111;
}
.pb-input::placeholder,
.pb-textarea::placeholder {
  color: #ccc;
}

.pb-textarea {
  min-height: 80px;
}

.pb-submit {
  align-self: flex-start;
  background: none;
  border: 1px solid #ddd;
  padding: 0.45rem 1.4rem;
  font-size: 0.69rem;
  font-family: inherit;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #666;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}
.pb-submit:hover {
  border-color: #111;
  color: #111;
}

/* ---- Footer nav ------------------------------------------- */

.pb-footer {
  width: 100%;
  max-width: min(92vw, 1000px);
  margin-top: 3rem;
  padding: 1.75rem 0 3rem;
  display: flex;
  justify-content: center;
}

.pb-footer-nav {
  display: flex;
  gap: 2rem;
}

.pb-footer-link {
  font-size: 0.69rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #666;
  text-decoration: none;
  transition: color 0.18s;
}
.pb-footer-link:hover { color: #111; }

/* ---- Header nav link (about page back arrow) -------------- */

.pb-header-nav {
  font-size: 0.69rem;
  color: #666;
  letter-spacing: 0.07em;
  text-align: right;
  text-decoration: none;
  transition: color 0.2s;
}
.pb-header-nav:hover { color: #111; }

/* ---- About page ------------------------------------------- */

.pb-about {
  width: 100%;
  max-width: 600px;
  padding-top: 0.5rem;
}

.pb-about-heading {
  font-size: 0.69rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #555;
  margin: 0 0 2.5rem;
}

.pb-about-body {
  font-size: 0.9rem;
  line-height: 1.8;
  color: #333;
}

.pb-about-body p {
  margin: 0 0 1.4em;
}

.pb-about-body a {
  color: #111;
  text-decoration-color: #ddd;
  text-underline-offset: 3px;
  transition: text-decoration-color 0.2s;
}
.pb-about-body a:hover { text-decoration-color: #111; }

/* ---- Keyboard hint ---------------------------------------- */

.pb-keys {
  position: fixed;
  bottom: 1.75rem;
  right: 2.5rem;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: #ddd;
  pointer-events: none;
  user-select: none;
}

/* ---- Responsive ------------------------------------------- */

@media (max-width: 640px) {
  .pb-header {
    padding: 1.1rem 1.25rem;
    grid-template-columns: 1fr 1fr;
  }
  .pb-header-byline { display: none; }
  .pb-main {
    padding: 0.5rem 1.25rem 3rem;
  }
  .pb-meta {
    flex-direction: column;
    gap: 0.75rem;
  }
  .pb-nav {
    order: -1;
    gap: 1.25rem;
  }
  .pb-keys { display: none; }
}

/* ================================================================
   Archive grid + tag pages
   ================================================================ */

/* ---- Sticky archive nav ------------------------------------ */

.pb-archive-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid #ebebeb;
}

.pb-year-nav {
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  padding: 0 2.5rem;
  scrollbar-width: none;
}
.pb-year-nav::-webkit-scrollbar { display: none; }

.pb-year-nav-total {
  font-size: 0.62rem;
  color: #aaa;
  letter-spacing: 0.08em;
  white-space: nowrap;
  margin-right: 1rem;
  padding: 0.75rem 0;
  flex-shrink: 0;
}

.pb-year-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.75rem 0.85rem;
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #888;
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  margin-bottom: -1px;
  flex-shrink: 0;
}
.pb-year-link:hover { color: #333; }
.pb-year-link.is-active { color: #111; border-bottom-color: #111; }

.pb-year-count {
  font-size: 0.58rem;
  font-weight: 400;
  color: #ccc;
  transition: color 0.15s;
}
.pb-year-link:hover .pb-year-count,
.pb-year-link.is-active .pb-year-count { color: #999; }

/* ---- Tag strip -------------------------------------------- */

.pb-tag-strip {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.55rem 2.5rem;
  overflow-x: auto;
  border-top: 1px solid #f2f2f2;
  scrollbar-width: none;
}
.pb-tag-strip::-webkit-scrollbar { display: none; }

.pb-tag-strip--standalone {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid #ebebeb;
  border-top: none;
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
}

.pb-tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.22rem 0.65rem;
  border-radius: 100px;
  border: 1px solid #e0e0e0;
  font-size: 0.63rem;
  letter-spacing: 0.04em;
  color: #666;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.pb-tag-pill:hover { border-color: #333; color: #111; }
.pb-tag-pill.is-active { background: #111; border-color: #111; color: #fff; }

.pb-tag-pill-count {
  font-size: 0.58rem;
  color: #bbb;
  transition: color 0.15s;
}
.pb-tag-pill.is-active .pb-tag-pill-count { color: rgba(255,255,255,0.5); }
.pb-tag-pill:hover .pb-tag-pill-count { color: #888; }

/* ---- Archive main ----------------------------------------- */

.pb-archive-main {
  padding-bottom: 5rem;
}

.pb-year-section {
  margin-bottom: 0.5rem;
}

.pb-year-heading {
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #333;
  padding: 1.75rem 2.5rem 0.65rem;
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.pb-year-total {
  font-size: 0.6rem;
  font-weight: 400;
  color: #bbb;
  letter-spacing: 0.06em;
}

/* ---- Photo grid ------------------------------------------- */

.pb-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3px;
}

.pb-grid-item {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #f0f0f0;
  display: block;
  text-decoration: none;
  cursor: pointer;
}

.pb-grid-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0;
  transition: opacity 0.35s ease, transform 0.45s ease;
  will-change: transform, opacity;
}
.pb-grid-img.is-loaded { opacity: 1; }
.pb-grid-item:hover .pb-grid-img { transform: scale(1.05); }

.pb-grid-item--error { background: #e8e8e8; }

.pb-grid-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.72) 0%,
    rgba(0, 0, 0, 0.18) 45%,
    transparent 100%
  );
  opacity: 0;
  transition: opacity 0.22s ease;
  display: flex;
  align-items: flex-end;
  padding: 0.65rem 0.75rem;
}
.pb-grid-item:hover .pb-grid-overlay { opacity: 1; }

.pb-grid-overlay-inner {
  width: 100%;
}

.pb-grid-date {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.07em;
  font-variant-numeric: tabular-nums;
  color: rgba(255, 255, 255, 0.92);
  font-weight: 500;
  line-height: 1.4;
}

.pb-grid-tag {
  display: block;
  font-size: 0.58rem;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 0.15rem;
  text-transform: lowercase;
}

/* ---- Tag page header -------------------------------------- */

.pb-tag-page-header {
  padding: 1.75rem 2.5rem 0.25rem;
}

.pb-tag-page-back {
  font-size: 0.63rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #888;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.6rem;
  transition: color 0.15s;
}
.pb-tag-page-back:hover { color: #111; }

.pb-tag-page-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #111;
  margin: 0 0 0.2rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.pb-tag-page-count {
  font-size: 0.75rem;
  color: #888;
  margin: 0 0 0.5rem;
}

/* ---- Archive responsive ----------------------------------- */

@media (max-width: 960px) {
  .pb-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 640px) {
  .pb-year-nav { padding: 0 1.25rem; }
  .pb-tag-strip { padding: 0.5rem 1.25rem; }
  .pb-year-heading { padding: 1.25rem 1.25rem 0.5rem; }
  .pb-grid { grid-template-columns: repeat(2, 1fr); gap: 2px; }
  .pb-tag-page-header { padding: 1.25rem 1.25rem 0; }
  .pb-tag-page-title { font-size: 1.2rem; }
}