:root {
  --bg: #f8f9fb;
  --surface: #ffffff;
  --text: #1a1d26;
  --text-muted: #5c6370;
  --border: #e2e5eb;
  --primary: #3b6ef5;
  --primary-hover: #2f5ad4;
  --danger: #d64545;
  --success: #2d9f6f;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --radius: 8px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "Source Code Pro", monospace;
}

[data-theme="dark"] {
  --bg: #12151c;
  --surface: #1c2130;
  --text: #e8eaef;
  --text-muted: #9aa3b2;
  --border: #2d3548;
  --primary: #6b93ff;
  --primary-hover: #89a8ff;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

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

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* Navigation */
.topnav {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  margin-right: auto;
}

.nav-links {
  display: flex;
  gap: 0.5rem;
}

.nav-links a {
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  color: var(--text-muted);
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a.active {
  background: var(--bg);
  color: var(--text);
  text-decoration: none;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.inline-form { margin: 0; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  background: var(--surface);
  color: var(--text);
}

.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-hover);
  color: #fff;
}

.btn-secondary {
  border-color: var(--border);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}

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

.btn-block { width: 100%; }

.btn-icon {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.35rem 0.6rem;
  cursor: pointer;
  color: var(--text);
  font-size: 1rem;
}

.btn-sm { padding: 0.25rem 0.5rem; font-size: 0.8rem; }

/* Cards & layout */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.page-header h1 {
  margin: 0;
  font-size: 1.75rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.card-header h2 {
  margin: 0;
  font-size: 1.1rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
  box-shadow: var(--shadow);
}

.stat-value {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Tables */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
}

th {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--bg);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-draft {
  background: #fff3cd;
  color: #856404;
}

.badge-published {
  background: #d4edda;
  color: #155724;
}

[data-theme="dark"] .badge-draft {
  background: #3d3419;
  color: #ffd666;
}

[data-theme="dark"] .badge-published {
  background: #1a3d2b;
  color: #6fcf97;
}

/* Forms */
.form label,
.post-form label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.form label span,
.post-form label span {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

input[type="text"],
input[type="password"],
input[type="search"],
input[type="datetime-local"],
textarea {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  width: 100%;
}

input:focus,
textarea:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 1rem;
}

.span-2 { grid-column: span 2; }

.checkbox-label {
  flex-direction: row !important;
  align-items: center;
  gap: 0.5rem !important;
}

.checkbox-label input { width: auto; }

.search-bar {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.search-bar input { flex: 1; min-width: 200px; }

/* Login */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.login-card h1 {
  margin: 0 0 0.25rem;
  text-align: center;
}

.subtitle {
  text-align: center;
  color: var(--text-muted);
  margin: 0 0 1.5rem;
}

/* Alerts */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.alert-error {
  background: #fde8e8;
  color: var(--danger);
  border: 1px solid #f5c6c6;
}

[data-theme="dark"] .alert-error {
  background: #3d1f1f;
  border-color: #5c2a2a;
}

.empty-state {
  color: var(--text-muted);
  text-align: center;
  padding: 2rem;
}

.save-status {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.save-status.saving { color: var(--primary); }
.save-status.saved { color: var(--success); }
.save-status.error { color: var(--danger); }

/* Editor */
.editor-label { margin-top: 1rem; }

.editor-toolbar-extra {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
  flex-wrap: wrap;
}

.EasyMDEContainer {
  border-radius: var(--radius);
  overflow: hidden;
}

[data-theme="dark"] .EasyMDEContainer .CodeMirror,
[data-theme="dark"] .editor-toolbar {
  background: var(--bg);
  color: var(--text);
  border-color: var(--border);
}

[data-theme="dark"] .EasyMDEContainer .editor-preview {
  background: var(--surface);
  color: var(--text);
}

/* Media */
.upload-form {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
  padding: 1rem;
  max-height: 60vh;
  overflow-y: auto;
}

.media-grid-page {
  max-height: none;
  padding: 0;
  margin-top: 1rem;
}

.media-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg);
  cursor: pointer;
}

.media-item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
}

.media-meta {
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.media-meta code {
  font-size: 0.7rem;
  word-break: break-all;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal.hidden { display: none; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
}

.modal-content {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius);
  width: 100%;
  max-width: 700px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  margin: 0;
  font-size: 1.1rem;
}

.error-detail {
  background: var(--bg);
  padding: 1rem;
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 0.85rem;
}

.link { font-size: 0.9rem; }

/* Responsive */
@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
  .span-2 { grid-column: span 1; }

  .topnav {
    flex-wrap: wrap;
  }

  .nav-links {
    order: 3;
    width: 100%;
    justify-content: center;
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }
}