:root {
  --bg: #f5f5f7;
  --card-bg: #ffffff;
  --text: #1d1d1f;
  --text-secondary: #6e6e73;
  --accent: #0071e3;
  --accent-hover: #0077ED;
  --border: #e5e5e7;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-hover: 0 4px 20px rgba(0,0,0,0.12);
  --radius: 12px;
  --max-width: 1100px;
  --danger: #ff3b30;
  --success: #34c759;
  --warning: #ff9500;
  --sidebar-width: 240px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; height: auto; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

.site-header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  background: rgba(255,255,255,0.9);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; }
.site-title { font-size: 1.5rem; font-weight: 700; color: var(--text); }
.site-title a { color: var(--text); }
.site-subtitle { font-size: 0.875rem; color: var(--text-secondary); margin-top: 2px; }
.site-nav a { margin-inline-start: 20px; font-size: 0.9rem; color: var(--text-secondary); }
.site-nav a:hover { color: var(--accent); }

.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
  padding: 32px 0;
}
.post-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: box-shadow 0.3s, transform 0.3s;
}
.post-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.post-card-cover { width: 100%; height: 200px; object-fit: cover; display: block; }
.post-card-body { padding: 20px; }
.post-card-title { font-size: 1.2rem; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
.post-card-title a { color: var(--text); }
.post-card-title a:hover { color: var(--accent); }
.post-card-excerpt { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 12px; line-height: 1.5; }
.post-card-meta { display: flex; align-items: center; gap: 12px; font-size: 0.8rem; color: var(--text-secondary); }
.post-card-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }
.tag-badge {
  display: inline-block;
  background: #f0f0f5;
  color: var(--text-secondary);
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
}
.tag-badge:hover { background: var(--accent); color: #fff; }

.post-content {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px;
  margin: 32px 0;
  max-width: 800px;
  margin-inline-start: auto;
  margin-inline-end: auto;
}
.post-content h1 { font-size: 2rem; margin-bottom: 8px; }
.post-content .post-meta { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.post-content .post-body { font-size: 1rem; line-height: 1.8; }
.post-body h1, .post-body h2, .post-body h3, .post-body h4 { margin: 1.5em 0 0.5em; }
.post-body p { margin: 0.8em 0; }
.post-body pre { background: #f5f5f7; padding: 16px; border-radius: 8px; overflow-x: auto; margin: 1em 0; }
.post-body code { font-family: 'SF Mono', Menlo, monospace; font-size: 0.9em; }
.post-body p code { background: #f5f5f7; padding: 2px 6px; border-radius: 4px; }
.post-body blockquote { border-inline-start: 4px solid var(--accent); padding-inline-start: 16px; margin: 1em 0; color: var(--text-secondary); }
.post-body img { border-radius: 8px; margin: 1em 0; }
.post-body ul, .post-body ol { padding-inline-start: 1.5em; margin: 0.8em 0; }
.post-body a { text-decoration: underline; }
.post-body table { width: 100%; border-collapse: collapse; margin: 1em 0; }
.post-body th, .post-body td { padding: 8px 12px; border: 1px solid var(--border); text-align: start; }
.post-body th { background: #f5f5f7; }

.pagination { display: flex; justify-content: center; gap: 8px; padding: 20px 0 40px; }
.pagination a, .pagination span { padding: 8px 16px; border-radius: 8px; font-size: 0.9rem; }
.pagination a { background: var(--card-bg); box-shadow: var(--shadow); color: var(--text); }
.pagination a:hover { background: var(--accent); color: #fff; }
.pagination .current { background: var(--accent); color: #fff; }

.site-footer {
  text-align: center;
  padding: 24px 0;
  color: var(--text-secondary);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}
.site-footer a { margin-inline-start: 4px; }

.page-title { font-size: 1.5rem; font-weight: 600; padding-top: 32px; }
.page-subtitle { color: var(--text-secondary); margin-top: 4px; }

.empty-state { text-align: center; padding: 80px 20px; color: var(--text-secondary); }
.empty-state h2 { font-size: 1.5rem; margin-bottom: 8px; color: var(--text); }

.setup-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}
.setup-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 48px;
  max-width: 500px;
  width: 100%;
}
.setup-card h1 { font-size: 1.8rem; margin-bottom: 4px; }
.setup-card .subtitle { color: var(--text-secondary); margin-bottom: 32px; }
.setup-card .step-indicator { font-size: 0.8rem; color: var(--accent); font-weight: 600; margin-bottom: 8px; }
.setup-lang-switcher { position: fixed; top: 16px; inset-inline-end: 24px; z-index: 200; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 500; margin-bottom: 6px; font-size: 0.9rem; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s;
  background: #fff;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,113,227,0.1);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-hint { font-size: 0.8rem; color: var(--text-secondary); margin-top: 4px; }

.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  font-family: inherit;
  text-align: center;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #e0342d; color: #fff; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 6px 14px; font-size: 0.85rem; }
.btn-block { display: block; width: 100%; }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 20px; font-size: 0.9rem; }
.alert-error { background: #fff2f2; color: var(--danger); border: 1px solid #ffd4d4; }
.alert-success { background: #f0faf4; color: var(--success); border: 1px solid #c8f0d4; }

.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: var(--sidebar-width);
  background: var(--text);
  color: #fff;
  padding: 24px 0;
  flex-shrink: 0;
  position: fixed;
  top: 0;
  inset-inline-start: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}
.admin-sidebar .logo { padding: 0 20px 24px; font-size: 1.2rem; font-weight: 700; border-bottom: 1px solid rgba(255,255,255,0.1); }
.admin-sidebar nav { padding-top: 12px; }
.admin-sidebar nav a {
  display: block;
  padding: 10px 20px;
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  transition: all 0.2s;
}
.admin-sidebar nav a:hover, .admin-sidebar nav a.active { background: rgba(255,255,255,0.1); color: #fff; }
.admin-main { flex: 1; margin-inline-start: var(--sidebar-width); padding: 32px; }
.admin-topbar { display: flex; justify-content: flex-end; margin-bottom: 16px; }
.admin-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.admin-header h1 { font-size: 1.5rem; }

.lang-switcher select {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.85rem;
  font-family: inherit;
  background: var(--card-bg);
  cursor: pointer;
  color: var(--text);
}
.lang-switcher select:focus { outline: none; border-color: var(--accent); }

.admin-table { width: 100%; background: var(--card-bg); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.admin-table table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td { padding: 12px 16px; text-align: start; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.admin-table th { font-weight: 600; background: #fafafa; }
.admin-table tr:last-child td { border-bottom: none; }
.status-badge { padding: 2px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 500; }
.status-published { background: #e8f8ed; color: var(--success); }
.status-draft { background: #f5f5f7; color: var(--text-secondary); }

.editor-container { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.editor-pane { display: flex; flex-direction: column; }
.editor-pane label { margin-bottom: 6px; font-weight: 500; font-size: 0.9rem; }
.editor-pane textarea {
  flex: 1;
  min-height: 500px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: 'SF Mono', Menlo, monospace;
  font-size: 0.9rem;
  resize: vertical;
  line-height: 1.6;
}
.editor-pane textarea:focus { outline: none; border-color: var(--accent); }
.preview-pane {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  overflow-y: auto;
  min-height: 500px;
  background: #fff;
}

.media-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px; }
.media-item {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}
.media-item img { width: 100%; height: 140px; object-fit: cover; display: block; }
.media-item .media-actions { padding: 10px; display: flex; gap: 6px; }

.upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  margin-bottom: 24px;
}
.upload-area:hover, .upload-area.dragover { border-color: var(--accent); background: rgba(0,113,227,0.03); }
.upload-area input[type=file] { display: none; }

.settings-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
  max-width: 600px;
}

@media (max-width: 768px) {
  .posts-grid { grid-template-columns: 1fr; }
  .editor-container { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }
  .admin-main { margin-inline-start: 0; }
  .post-content { padding: 24px; }
  .setup-card { padding: 32px 24px; }
}