/* =========================================================================
   admin.css — Admin Panel Styles
   ========================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --bg:           #f4f7f6;
  --sidebar-bg:   #ffffff;
  --main-bg:      #fafbfa;
  --card-bg:      #ffffff;
  --card-hover:   #f4faf6;
  --border:       #e2ebd9;
  --border-hover: #cad6c1;

  --txt:          #0f172a;
  --txt-2:        #47554e;
  --txt-3:        #708878;

  --accent-1:     #059669;
  --accent-2:     #0ea5e9;
  --gradient:     linear-gradient(135deg, #059669 0%, #0ea5e9 100%);
  --glow:         0 4px 12px rgba(5, 150, 105, 0.08);

  --danger:       #ef4444;
  --success:      #10b981;
  --warning:      #f59e0b;

  --sidebar-w:    220px;
  --radius:       12px;
  --radius-sm:    8px;
  --transition:   0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--main-bg);
  color: var(--txt);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
input, textarea, select { font: inherit; }

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 3px; }

/* ─── Admin Layout ─────────────────────────────────────────────────────── */
.admin-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-w);
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 100;
  overflow-y: auto;
}

.sidebar-brand {
  padding: 20px 18px;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo {
  font-size: 1rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

.sidebar-sub {
  font-size: 0.72rem;
  color: var(--txt-3);
  margin-top: 2px;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 10px;
}

.nav-section-title {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--txt-3);
  padding: 8px 8px 4px;
  margin-top: 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--txt-2);
  transition: all var(--transition);
  margin-bottom: 1px;
}

.nav-item:hover { background: var(--card-hover); color: var(--txt); }
.nav-item.active {
  background: rgba(91,141,238,0.12);
  color: var(--accent-1);
}

.nav-item svg { flex-shrink: 0; opacity: 0.8; }

.sidebar-footer {
  padding: 14px 10px;
  border-top: 1px solid var(--border);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  margin-bottom: 6px;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.user-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--txt);
}

.user-role {
  font-size: 0.72rem;
  color: var(--txt-3);
}

.logout-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--txt-2);
  transition: all var(--transition);
}

.logout-btn:hover { background: rgba(239,68,68,0.1); color: var(--danger); }

/* Main content */
.admin-main {
  flex: 1;
  margin-left: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.admin-topbar {
  height: 60px;
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
}

.topbar-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--txt);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.admin-content {
  flex: 1;
  padding: 28px;
}

/* ─── Buttons ──────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: var(--glow);
}

.btn-primary:hover { filter: brightness(1.1); transform: translateY(-1px); }

.btn-secondary {
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--txt-2);
}

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

.btn-danger {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  color: var(--danger);
}

.btn-danger:hover { background: rgba(239,68,68,0.2); }

.btn-icon {
  padding: 7px;
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--txt-2);
  transition: all var(--transition);
}

.btn-icon:hover { border-color: var(--border-hover); color: var(--txt); }

.btn-sm { padding: 5px 12px; font-size: 0.8rem; }

/* ─── Cards ────────────────────────────────────────────────────────────── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.card-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--txt);
}

/* ─── Stats cards ──────────────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--txt);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--txt-3);
}

/* ─── Table ────────────────────────────────────────────────────────────── */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

thead {
  background: var(--sidebar-bg);
  border-bottom: 1px solid var(--border);
}

th {
  padding: 11px 16px;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--txt-3);
  white-space: nowrap;
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--txt-2);
  vertical-align: middle;
}

tr:last-child td { border-bottom: none; }

tbody tr:hover td { background: rgba(0,0,0,0.02); }

.cell-primary { color: var(--txt); font-weight: 500; }
.cell-url { color: var(--accent-1); font-size: 0.8rem; max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ─── Badges ───────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-published  { background: rgba(34,197,94,0.12);  color: var(--success); border: 1px solid rgba(34,197,94,0.25); }
.badge-draft      { background: rgba(100,116,139,0.12); color: var(--txt-3);   border: 1px solid var(--border); }
.badge-category   { background: rgba(91,141,238,0.1);   color: var(--accent-1); border: 1px solid rgba(91,141,238,0.2); }

/* ─── Forms ────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--txt-2);
  margin-bottom: 7px;
}

.form-control {
  width: 100%;
  padding: 9px 13px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--txt);
  font-size: 0.875rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control::placeholder { color: var(--txt-3); }

.form-control:focus {
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px rgba(91,141,238,0.12);
}

textarea.form-control { resize: vertical; min-height: 80px; }

select.form-control { appearance: none; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.form-hint { font-size: 0.75rem; color: var(--txt-3); margin-top: 5px; }

/* Toggle (publish/draft) */
.toggle-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.toggle {
  position: relative;
  width: 40px;
  height: 22px;
  cursor: pointer;
}

.toggle input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 20px;
  transition: background var(--transition);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 3px;
  top: 3px;
  background: var(--txt-3);
  border-radius: 50%;
  transition: all var(--transition);
}

.toggle input:checked + .toggle-slider { background: var(--accent-1); }
.toggle input:checked + .toggle-slider::before { transform: translateX(18px); background: #fff; }

/* ─── Modal ────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.modal-overlay.active { opacity: 1; pointer-events: all; }

.modal {
  background: var(--sidebar-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95) translateY(10px);
  transition: transform 0.2s;
}

.modal-overlay.active .modal { transform: scale(1) translateY(0); }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.modal-title { font-size: 1rem; font-weight: 600; }

.modal-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  color: var(--txt-2);
  transition: all var(--transition);
}

.modal-close:hover { background: var(--card-hover); color: var(--txt); }

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ─── Toast ────────────────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--sidebar-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastIn 0.3s ease;
  min-width: 220px;
  max-width: 360px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
}

.toast.success { border-left: 3px solid var(--success); }
.toast.error   { border-left: 3px solid var(--danger); }
.toast.info    { border-left: 3px solid var(--accent-1); }

@keyframes toastIn {
  from { transform: translateX(100%); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

/* ─── Empty state ──────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--txt-3);
}

.empty-state svg { margin-bottom: 12px; opacity: 0.4; }
.empty-state h3 { font-size: 0.95rem; color: var(--txt-2); margin-bottom: 6px; }
.empty-state p { font-size: 0.85rem; }

/* ─── Editor page ──────────────────────────────────────────────────────── */
.editor-layout {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.editor-topbar {
  height: 56px;
  background: var(--sidebar-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 14px;
  flex-shrink: 0;
}

.editor-title-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--txt);
}

.editor-title-input::placeholder { color: var(--txt-3); }

.editor-body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.editor-sidebar {
  width: 240px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  padding: 18px;
  overflow-y: auto;
  flex-shrink: 0;
}

.editor-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--main-bg);
}

/* EasyMDE overrides */
.EasyMDEContainer { flex: 1; display: flex; flex-direction: column; height: 100%; }
.EasyMDEContainer .CodeMirror { flex: 1; background: var(--main-bg) !important; color: var(--txt) !important; border: none !important; font-size: 0.95rem; line-height: 1.7; }
.EasyMDEContainer .editor-toolbar { background: var(--sidebar-bg) !important; border-bottom: 1px solid var(--border) !important; border-top: none !important; border-left: none !important; border-right: none !important; }
.EasyMDEContainer .editor-toolbar button { color: var(--txt-2) !important; }
.EasyMDEContainer .editor-toolbar button:hover,
.EasyMDEContainer .editor-toolbar button.active { background: var(--card-hover) !important; color: var(--txt) !important; border-color: var(--border) !important; }
.EasyMDEContainer .editor-toolbar .separator { border-color: var(--border) !important; }
.editor-preview { background: var(--main-bg) !important; color: var(--txt) !important; padding: 24px 32px !important; }

/* ─── Login page ───────────────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}

.login-logo {
  text-align: center;
  margin-bottom: 28px;
}

.login-logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-sub {
  font-size: 0.8rem;
  color: var(--txt-3);
  margin-top: 4px;
}

.login-error {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.85rem;
  color: var(--danger);
  margin-bottom: 16px;
  display: none;
}

.login-btn {
  width: 100%;
  padding: 11px;
  background: var(--gradient);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition);
  box-shadow: var(--glow);
}

.login-btn:hover { filter: brightness(1.1); box-shadow: 0 0 30px rgba(91,141,238,0.4); }

/* ─── Tags input ───────────────────────────────────────────────────────── */
.tags-input-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  min-height: 42px;
  cursor: text;
  transition: border-color var(--transition);
}

.tags-input-wrap:focus-within {
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px rgba(91,141,238,0.12);
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: rgba(91,141,238,0.12);
  border: 1px solid rgba(91,141,238,0.2);
  border-radius: 20px;
  font-size: 0.78rem;
  color: var(--accent-1);
}

.tag-chip button {
  line-height: 1;
  padding: 0;
  font-size: 0.9em;
  opacity: 0.6;
}

.tag-chip button:hover { opacity: 1; }

.tags-input {
  border: none;
  background: none;
  outline: none;
  color: var(--txt);
  font-size: 0.875rem;
  min-width: 80px;
  flex: 1;
}

/* ─── Premium Mobile Menu Toggle & Overlay ──────────────────────────────── */
.btn-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--txt-2);
  cursor: pointer;
  margin-right: 12px;
  transition: all var(--transition);
  flex-shrink: 0;
}

.btn-menu-toggle:hover {
  background: var(--bg-2);
  color: var(--txt);
}

.sidebar-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.25);
  backdrop-filter: blur(4px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.sidebar-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ─── Responsive Grid Overrides ─────────────────────────────────────────── */
.admin-split-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 20px;
  align-items: start;
}

.admin-grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 28px;
}

/* ─── Responsive ───────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); transition: transform 0.3s; z-index: 1000; }
  .sidebar.open { transform: translateX(0); }
  .admin-main { margin-left: 0; }
  .form-row { grid-template-columns: 1fr; }
  .editor-sidebar { display: none; }
  .btn-menu-toggle { display: inline-flex !important; }
  .admin-split-layout,
  .admin-grid-2col {
    grid-template-columns: 1fr !important;
  }
}