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

:root {
  --bg:        #f9f9f7;
  --surface:   #ffffff;
  --border:    #e2e2dc;
  --text:      #1a1a1a;
  --muted:     #6b7280;
  --accent:    #2563eb;
  --accent-h:  #1d4ed8;
  --danger:    #dc2626;
  --radius:    8px;
  --max-w:     1200px;
}

/* ── Dark mode (system preference) ───────────────────────── */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:      #0f1117;
    --surface: #1a1d27;
    --border:  #2e3244;
    --text:    #e8eaf0;
    --muted:   #8b92a5;
  }
}

/* ── Dark mode (manual toggle) ───────────────────────────── */
[data-theme="dark"] {
  --bg:      #0f1117;
  --surface: #1a1d27;
  --border:  #2e3244;
  --text:    #e8eaf0;
  --muted:   #8b92a5;
}

[data-theme="light"] {
  --bg:        #f9f9f7;
  --surface:   #ffffff;
  --border:    #e2e2dc;
  --text:      #1a1a1a;
  --muted:     #6b7280;
}

/* ── Theme toggle button ──────────────────────────────────── */
#theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  cursor: pointer;
  font-size: 1rem;
  padding: 0.25rem 0.55rem;
  line-height: 1;
  transition: color 0.15s, border-color 0.15s;
}
#theme-toggle:hover { color: var(--text); border-color: var(--muted); }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout ───────────────────────────────────────────────── */
header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  gap: 1rem;
}

.site-title { font-weight: 700; font-size: 1.15rem; color: var(--text); }
.site-title:hover { text-decoration: none; }

nav { display: flex; gap: 1.25rem; }
nav a { font-size: 0.9rem; color: var(--muted); }
nav a:hover, nav a.active { color: var(--accent); text-decoration: none; }
[data-theme="dark"] nav a { color: #c9cdd8; }
[data-theme="dark"] nav a:hover,
[data-theme="dark"] nav a.active { color: #93c5fd; }
[data-theme="dark"] .site-title { color: #f1f3f8; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) nav a { color: #c9cdd8; }
  :root:not([data-theme="light"]) nav a:hover,
  :root:not([data-theme="light"]) nav a.active { color: #93c5fd; }
  :root:not([data-theme="light"]) .site-title { color: #f1f3f8; }
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* ── Search bar ───────────────────────────────────────────── */
.search-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.search-row input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  background: var(--surface);
}

.search-row input:focus { outline: none; border-color: var(--accent); }

.search-row button {
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.9rem;
  white-space: nowrap;
}
.search-row button:hover { opacity: 0.85; }

/* ── Tag chips ────────────────────────────────────────────── */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.tag {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 500;
  background: #e0e7ff;
  color: #3730a3;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background 0.15s;
}

.tag:hover { background: #c7d2fe; }
.tag.active { border-color: var(--accent); }
.tag.all { background: #f3f4f6; color: var(--muted); }
.tag.all.active { background: var(--accent); color: #fff; border-color: var(--accent); }
[data-theme="dark"] .tag { background: #1e2a5e; color: #93c5fd; }
[data-theme="dark"] .tag:hover { background: #253370; }
[data-theme="dark"] .tag.all { background: var(--border); color: var(--muted); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .tag { background: #1e2a5e; color: #93c5fd; }
  :root:not([data-theme="light"]) .tag:hover { background: #253370; }
  :root:not([data-theme="light"]) .tag.all { background: var(--border); color: var(--muted); }
}

/* ── Post card ────────────────────────────────────────────── */
.post-list { display: flex; flex-direction: column; gap: 1.25rem; }

.post-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  transition: box-shadow 0.15s;
}

.post-card:hover { box-shadow: 0 2px 12px rgba(0,0,0,0.07); }

.post-card h2 { font-size: 1.15rem; margin-bottom: 0.3rem; }
.post-card .meta { font-size: 0.82rem; color: var(--muted); margin-bottom: 0.6rem; }
.post-card .excerpt { font-size: 0.93rem; color: var(--text); margin-bottom: 0.75rem; }
.post-card .card-footer { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; }
.post-card .draft-badge { font-size: 0.75rem; background: #fef3c7; color: #92400e; padding: 0.15rem 0.5rem; border-radius: 4px; }

/* ── Pagination ───────────────────────────────────────────── */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-top: 2rem;
}

.pagination button {
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  cursor: pointer;
  font-size: 0.9rem;
}

.pagination button:disabled { opacity: 0.4; cursor: default; }
.pagination button.current { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ── Single post ──────────────────────────────────────────── */
.post-header { margin-bottom: 1.5rem; }
.post-header h1 { font-size: 1.85rem; line-height: 1.3; margin-bottom: 0.4rem; }
.post-header .meta { font-size: 0.85rem; color: var(--muted); }

.post-body { font-size: 1rem; }
.post-body h1,.post-body h2,.post-body h3 { margin: 1.5rem 0 0.5rem; }
.post-body p  { margin-bottom: 1rem; }
.post-body ul,.post-body ol { padding-left: 1.5rem; margin-bottom: 1rem; }
.post-body blockquote { border-left: 4px solid var(--border); padding-left: 1rem; color: var(--muted); margin: 1rem 0; }
.post-body code { background: var(--border); padding: 0.1rem 0.35rem; border-radius: 4px; font-size: 0.9em; }
.post-body pre { background: #1e1e1e; color: #d4d4d4; padding: 1rem; border-radius: var(--radius); overflow-x: auto; margin-bottom: 1rem; }
.post-body pre code { background: none; padding: 0; }
.post-body img { display: block; max-width: 100%; margin: 1.5rem auto; border-radius: var(--radius); }

/* Multiple images on consecutive lines render side-by-side */
.post-body .img-row { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; align-items: flex-start; margin: 1.5rem 0; }
.post-body .img-row img { flex: 0 0 auto; max-width: 100%; margin: 0; }

/* ── Admin form ───────────────────────────────────────────── */
.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.form-group { display: flex; flex-direction: column; gap: 0.35rem; margin-bottom: 1.25rem; }
.form-group label { font-size: 0.88rem; font-weight: 600; }

.form-group input[type="text"],
.form-group input[type="password"],
.form-group textarea,
.form-group select {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--bg);
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus { outline: none; border-color: var(--accent); background: var(--surface); }

.form-group textarea.code-area { font-family: "Cascadia Code", "Fira Code", monospace; font-size: 0.88rem; min-height: 280px; }

.checkbox-row { display: flex; align-items: center; gap: 0.5rem; }
.checkbox-row input { width: 1rem; height: 1rem; cursor: pointer; }

.tag-checkboxes { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag-checkbox-label {
  display: flex; align-items: center; gap: 0.3rem;
  padding: 0.25rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.82rem;
  background: var(--bg);
  transition: background 0.12s;
}
.tag-checkbox-label:hover { background: var(--border); }
.tag-checkbox-label input { display: none; }
.tag-checkbox-label.checked { background: #e0e7ff; border-color: var(--accent); color: #3730a3; font-weight: 600; }
[data-theme="dark"] .tag-checkbox-label.checked { background: #1e2a5e; color: #93c5fd; }

.btn-row { display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; }

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
  text-decoration: none;
}

.btn-primary   { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-h); text-decoration: none; }
.btn-secondary { background: var(--border); color: var(--text); }
.btn-secondary:hover { background: #d1d5db; text-decoration: none; }
.btn-danger    { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.88; text-decoration: none; }
.btn:disabled  { opacity: 0.5; cursor: default; }

/* ── Admin post list table ────────────────────────────────── */
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.admin-table th { text-align: left; padding: 0.6rem 0.75rem; border-bottom: 2px solid var(--border); color: var(--muted); font-weight: 600; }
.admin-table td { padding: 0.65rem 0.75rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
.admin-table tr:last-child td { border-bottom: none; }
.admin-table .actions { display: flex; gap: 0.5rem; }
.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 5px; }
.status-dot.pub { background: #22c55e; }
.status-dot.draft { background: #f59e0b; }

/* ── Utility ──────────────────────────────────────────────── */
.page-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 1.5rem; }
.empty-state { text-align: center; color: var(--muted); padding: 3rem 0; font-size: 0.95rem; }
.toast {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  background: #1e1e1e; color: #fff;
  padding: 0.65rem 1.1rem;
  border-radius: var(--radius);
  font-size: 0.88rem;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
  z-index: 100;
}
.toast.show { opacity: 1; }

#loading { display: none; text-align: center; color: var(--muted); padding: 2rem 0; }

/* ── Role badges ──────────────────────────────────────────── */
.role-badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: capitalize;
}
.role-admin       { background: #ede9fe; color: #6d28d9; }
.role-contributor { background: #dbeafe; color: #1d4ed8; }
[data-theme="dark"] .role-admin       { background: #2e1a5e; color: #c4b5fd; }
[data-theme="dark"] .role-contributor { background: #1e2a5e; color: #93c5fd; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .role-admin       { background: #2e1a5e; color: #c4b5fd; }
  :root:not([data-theme="light"]) .role-contributor { background: #1e2a5e; color: #93c5fd; }
}

/* ── Image gallery ────────────────────────────────────────── */
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}

.image-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.15s;
}
.image-card:hover { box-shadow: 0 2px 12px rgba(0,0,0,0.1); }

.image-thumb-wrap {
  aspect-ratio: 1;
  overflow: hidden;
  cursor: pointer;
  background: var(--border);
}
.image-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.2s;
  display: block;
}
.image-thumb-wrap:hover .image-thumb { transform: scale(1.06); }

.image-card-info { padding: 0.6rem 0.75rem; }

.image-name {
  font-size: 0.82rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.2rem;
  font-weight: 500;
}

.image-card-actions { display: flex; gap: 0.4rem; margin-top: 0.5rem; }

/* ── Lightbox ─────────────────────────────────────────────── */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 2rem;
}
.lightbox-close {
  position: fixed;
  top: 1rem;
  right: 1.25rem;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.75rem;
  cursor: pointer;
  opacity: 0.7;
  line-height: 1;
}
.lightbox-close:hover { opacity: 1; }
.lightbox-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 92vw;
  max-height: 92vh;
}
.lightbox-inner img {
  max-width: 100%;
  max-height: 82vh;
  object-fit: contain;
  border-radius: var(--radius);
}
.lightbox-caption {
  color: #d0d0d0;
  font-size: 0.88rem;
  margin-top: 0.75rem;
  text-align: center;
}

/* ── Responsive ───────────────────────────────────────────── */

/* Tablet (≤ 1024px) */
@media (max-width: 1024px) {
  :root { --max-w: 90vw; }
  .post-header h1 { font-size: 1.55rem; }
}

/* Large phone / small tablet (≤ 768px) */
@media (max-width: 768px) {
  :root { --max-w: 100%; }
  .container { padding: 1.25rem 1rem; }
  .header-inner { height: auto; flex-wrap: wrap; padding: 0.5rem 0; gap: 0.4rem; }
  .site-title { font-size: 1rem; }
  nav { gap: 0.75rem; }
  .post-header h1 { font-size: 1.35rem; }

  /* Admin action buttons — stack neatly */
  #view-posts > div:first-child,
  [style*="display:flex"][style*="margin-bottom:1.5rem"] { gap: 0.5rem; }

  /* Hide less important table columns */
  .admin-table th:nth-child(3),
  .admin-table td:nth-child(3),
  .admin-table th:nth-child(4),
  .admin-table td:nth-child(4) { display: none; }

  /* Image grid: 2 columns on tablet/large phone */
  .image-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }

  /* Image toolbar: search stretches full width below upload button */
  #view-images .upload-row { flex-wrap: wrap; }
  #img-search { min-width: 0; width: 100%; }
}

/* Phone (≤ 480px) */
@media (max-width: 480px) {
  .container { padding: 1rem 0.75rem; }
  .post-card { padding: 1rem; }
  .post-header h1 { font-size: 1.2rem; }
  .form-card { padding: 1rem; }
  .btn-row { flex-direction: column; align-items: stretch; }
  .btn-row .btn { justify-content: center; }
  .admin-table th:nth-child(2),
  .admin-table td:nth-child(2) { display: none; }

  /* Image grid: 2 columns on phone */
  .image-grid { grid-template-columns: repeat(2, 1fr); gap: 0.6rem; }

  /* Tighten image card info on small screens */
  .image-card-info { padding: 0.4rem 0.5rem; }
  .image-card-actions { flex-wrap: wrap; }
}

/* ── Custom lightbox ──────────────────────────────────────── */
#lb-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}

#lb-window {
  display: flex;
  flex-direction: column;
  width: 75vw;
  height: 75vh;
  background: #111;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0,0,0,0.7);
}

#lb-canvas {
  flex: 1;
  position: relative;
  overflow: hidden;
  cursor: grab;
  background: #111;
}

#lb-img {
  position: absolute;
  top: 50%;
  left: 50%;
  transform-origin: center;
  max-width: none;
  max-height: none;
  user-select: none;
  pointer-events: none;
}

#lb-toolbar {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem;
  background: rgba(0,0,0,0.5);
}

#lb-title {
  flex: 1;
  text-align: center;
  color: rgba(255,255,255,0.75);
  font-size: 0.85rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 0 0.5rem;
}

#lb-toolbar button {
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 0.35rem 0.9rem;
  font-size: 1.1rem;
  cursor: pointer;
  line-height: 1;
}

#lb-toolbar button:hover { background: rgba(255,255,255,0.3); }