/* BlogAI Pro v3.0 - Enhanced Styles */
:root {
  --bg-deep: #07090f;
  --bg-card: #0f1628;
  --bg-card2: #111827;
  --bg-input: #1a2235;
  --border: #1e293b;
  --border-focus: #6366f1;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #475569;
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-glow: rgba(99,102,241,0.25);
  --cyan: #06b6d4;
  --green: #10b981;
  --red: #ef4444;
  --yellow: #f59e0b;
  --orange: #f97316;
  --purple: #8b5cf6;
  --sidebar-w: 240px;
}

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

body {
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: 'Pretendard', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #1e293b; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #334155; }

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

.main-content {
  flex: 1;
  margin-left: var(--sidebar-w);
  padding: 28px 32px;
  max-width: calc(100vw - var(--sidebar-w));
  overflow-x: hidden;
}

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

.sidebar-logo {
  padding: 20px 16px;
  border-bottom: 1px solid var(--border);
}

.sidebar-section {
  padding: 8px 8px 4px;
  font-size: 10px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 8px;
}

.sidebar-nav { padding: 8px; flex: 1; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 13.5px;
  font-weight: 500;
  transition: all 0.15s ease;
  margin-bottom: 2px;
  position: relative;
}

.nav-item:hover {
  background: rgba(99,102,241,0.08);
  color: var(--text-primary);
}

.nav-item.active {
  background: rgba(99,102,241,0.15);
  color: #818cf8;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 60%;
  background: var(--primary);
  border-radius: 0 3px 3px 0;
}

.nav-item i { width: 18px; text-align: center; font-size: 13px; }

.nav-badge {
  margin-left: auto;
  background: var(--primary);
  color: white;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 20px;
  min-width: 18px;
  text-align: center;
}

/* ─── Cards ─── */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-body { padding: 20px; }

/* ─── Stats Cards ─── */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  transition: transform 0.2s, border-color 0.2s;
  position: relative;
  overflow: hidden;
}

.stat-card:hover { transform: translateY(-2px); border-color: rgba(99,102,241,0.4); }

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 80px; height: 80px;
  border-radius: 50%;
  opacity: 0.06;
  transform: translate(20px, -20px);
}

.stat-value {
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

.stat-change {
  font-size: 11px;
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 3px;
}

/* ─── Page Header ─── */
.page-header { margin-bottom: 24px; }

.page-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.page-subtitle {
  font-size: 13.5px;
  color: var(--text-secondary);
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  border: none;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #4f46e5);
  color: white;
  box-shadow: 0 0 0 0 var(--primary-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #4f46e5, #3730a3);
  box-shadow: 0 4px 15px rgba(99,102,241,0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover { background: #1e2d45; border-color: #334155; }

.btn-success { background: linear-gradient(135deg, var(--green), #059669); color: white; }
.btn-success:hover { background: linear-gradient(135deg, #059669, #047857); transform: translateY(-1px); }

.btn-danger { background: rgba(239,68,68,0.15); color: var(--red); border: 1px solid rgba(239,68,68,0.3); }
.btn-danger:hover { background: rgba(239,68,68,0.25); }

.btn-ghost { background: transparent; color: var(--text-secondary); padding: 6px 10px; }
.btn-ghost:hover { background: rgba(255,255,255,0.05); color: var(--text-primary); }

.btn-sm { padding: 6px 12px; font-size: 12.5px; border-radius: 6px; }
.btn-lg { padding: 11px 22px; font-size: 15px; }

.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* ─── Forms ─── */
.form-group { margin-bottom: 16px; }

.form-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  padding: 9px 13px;
  font-size: 13.5px;
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
  font-family: inherit;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}

.form-input::placeholder, .form-textarea::placeholder { color: var(--text-muted); }

.form-select { cursor: pointer; }
.form-select option { background: var(--bg-card2); }

.form-textarea { resize: vertical; min-height: 90px; }

.form-hint { font-size: 11.5px; color: var(--text-muted); margin-top: 4px; }

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

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

thead { background: rgba(255,255,255,0.02); }

th {
  padding: 11px 14px;
  text-align: left;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(30,41,59,0.6);
  font-size: 13.5px;
  vertical-align: middle;
}

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

tr:hover td { background: rgba(255,255,255,0.02); }

/* ─── Badges ─── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
}

.badge-published { background: rgba(16,185,129,0.15); color: #10b981; border: 1px solid rgba(16,185,129,0.3); }
.badge-generated { background: rgba(99,102,241,0.15); color: #818cf8; border: 1px solid rgba(99,102,241,0.3); }
.badge-draft { background: rgba(100,116,139,0.15); color: #94a3b8; border: 1px solid rgba(100,116,139,0.3); }
.badge-failed { background: rgba(239,68,68,0.15); color: #f87171; border: 1px solid rgba(239,68,68,0.3); }
.badge-posting { background: rgba(245,158,11,0.15); color: #fbbf24; border: 1px solid rgba(245,158,11,0.3); }
.badge-partial { background: rgba(249,115,22,0.15); color: #fb923c; border: 1px solid rgba(249,115,22,0.3); }

.platform-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 5px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.platform-naver { background: #03c75a; color: white; }
.platform-tistory { background: #ff6600; color: white; }
.platform-wordpress { background: #21759b; color: white; }

/* ─── Alerts ─── */
.alert {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 10px;
  margin-bottom: 16px;
  font-size: 13.5px;
  font-weight: 500;
  border: 1px solid transparent;
}

.alert-success { background: rgba(16,185,129,0.1); color: #34d399; border-color: rgba(16,185,129,0.25); }
.alert-error { background: rgba(239,68,68,0.1); color: #f87171; border-color: rgba(239,68,68,0.25); }
.alert-info { background: rgba(6,182,212,0.1); color: #22d3ee; border-color: rgba(6,182,212,0.25); }
.alert-warning { background: rgba(245,158,11,0.1); color: #fbbf24; border-color: rgba(245,158,11,0.25); }

/* ─── Loading ─── */
.spinner {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,0.15);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

@keyframes spin { to { transform: rotate(360deg); } }

.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-input) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: skeleton-wave 1.4s infinite;
  border-radius: 6px;
}

@keyframes skeleton-wave { to { background-position: -200% 0; } }

/* ─── Progress Bar ─── */
.progress-bar {
  height: 6px;
  background: var(--bg-input);
  border-radius: 10px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 10px;
  background: linear-gradient(90deg, var(--primary), var(--cyan));
  transition: width 0.5s ease;
}

/* ─── Tabs ─── */
.tabs {
  display: flex;
  gap: 2px;
  background: var(--bg-input);
  padding: 4px;
  border-radius: 10px;
  margin-bottom: 20px;
}

.tab-btn {
  flex: 1;
  padding: 7px 14px;
  border-radius: 7px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.tab-btn.active {
  background: var(--bg-card);
  color: var(--text-primary);
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

/* ─── Checkbox ─── */
.checkbox-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-input);
  cursor: pointer;
  transition: all 0.15s;
  margin-bottom: 8px;
}

.checkbox-item:hover { border-color: rgba(99,102,241,0.4); }

.checkbox-item.selected {
  border-color: var(--primary);
  background: rgba(99,102,241,0.08);
}

input[type="checkbox"] {
  width: 16px; height: 16px;
  accent-color: var(--primary);
  cursor: pointer;
}

/* ─── Toggle ─── */
.toggle {
  position: relative;
  display: inline-block;
  width: 40px; height: 22px;
  flex-shrink: 0;
}

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

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 22px;
  transition: 0.3s;
}

.toggle-slider:before {
  content: '';
  position: absolute;
  height: 14px; width: 14px;
  left: 3px; bottom: 3px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: 0.3s;
}

.toggle input:checked + .toggle-slider { background: var(--primary); border-color: var(--primary); }
.toggle input:checked + .toggle-slider:before { transform: translateX(18px); background: white; }

/* ─── Empty State ─── */
.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-muted);
}

.empty-state i { font-size: 40px; margin-bottom: 12px; opacity: 0.4; display: block; }
.empty-state h3 { font-size: 16px; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; }
.empty-state p { font-size: 13px; }

/* ─── Modal ─── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
  padding: 20px;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  width: 100%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  animation: modal-in 0.2s ease;
}

@keyframes modal-in {
  from { opacity: 0; transform: scale(0.95) translateY(-10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-close {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 18px;
  padding: 4px;
  transition: color 0.15s;
}

.modal-close:hover { color: var(--text-primary); }

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

/* ─── Keyword Tags ─── */
.kw-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.2);
  color: #a5b4fc;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.kw-tag:hover { background: rgba(99,102,241,0.2); border-color: rgba(99,102,241,0.4); }

.kw-tag.trending {
  background: rgba(239,68,68,0.1);
  border-color: rgba(239,68,68,0.2);
  color: #fca5a5;
}

.kw-tag.trending:hover { background: rgba(239,68,68,0.2); }

/* ─── Timeline ─── */
.timeline-item {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(30,41,59,0.5);
}

.timeline-item:last-child { border-bottom: none; }

.timeline-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--primary);
  margin-top: 6px;
  flex-shrink: 0;
}

/* ─── Platform Cards ─── */
.platform-card {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all 0.15s;
}

.platform-card:hover { border-color: rgba(99,102,241,0.3); }

.platform-icon {
  width: 38px; height: 38px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 15px;
  flex-shrink: 0;
}

/* ─── AI Generator ─── */
.generate-progress {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-top: 16px;
}

.step-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 13.5px;
  color: var(--text-secondary);
}

.step-item.done { color: var(--green); }
.step-item.active { color: var(--text-primary); }

.step-circle {
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 2px solid currentColor;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}

.step-item.done .step-circle { background: var(--green); border-color: var(--green); color: white; }
.step-item.active .step-circle { border-color: var(--primary); color: var(--primary); animation: pulse-ring 1s ease infinite; }

@keyframes pulse-ring {
  0%, 100% { box-shadow: 0 0 0 0 rgba(99,102,241,0.4); }
  50% { box-shadow: 0 0 0 5px rgba(99,102,241,0); }
}

/* ─── Trending ─── */
.trending-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
}

.trending-item:hover { background: rgba(255,255,255,0.04); }

.trending-rank {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
  flex-shrink: 0;
}

.rank-hot { background: rgba(239,68,68,0.2); color: #f87171; }
.rank-warm { background: rgba(245,158,11,0.2); color: #fbbf24; }
.rank-cool { background: rgba(100,116,139,0.2); color: #94a3b8; }

/* ─── Content Preview ─── */
.content-preview {
  background: white;
  border-radius: 10px;
  padding: 28px;
  color: #1a1a2e;
  font-family: 'Noto Sans KR', -apple-system, sans-serif;
  line-height: 1.8;
  font-size: 15px;
  max-height: 500px;
  overflow-y: auto;
}

.content-preview h2 { font-size: 20px; font-weight: 700; margin: 24px 0 10px; color: #1a1a2e; }
.content-preview h3 { font-size: 16px; font-weight: 700; margin: 18px 0 8px; color: #334155; }
.content-preview p { margin-bottom: 14px; }
.content-preview ul, .content-preview ol { padding-left: 20px; margin-bottom: 14px; }
.content-preview li { margin-bottom: 6px; }
.content-preview strong { font-weight: 700; color: #1a1a2e; }

.img-placeholder {
  width: 100%;
  height: 140px;
  background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 16px 0;
  color: #6366f1;
  font-weight: 600;
  font-size: 13px;
  gap: 8px;
}

/* ─── Login ─── */
.login-bg {
  background: radial-gradient(ellipse at 50% 0%, rgba(99,102,241,0.12) 0%, transparent 70%),
              radial-gradient(ellipse at 80% 80%, rgba(6,182,212,0.08) 0%, transparent 60%),
              var(--bg-deep);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

/* ─── Gradient Text ─── */
.gradient-text {
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Utility ─── */
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.w-full { width: 100%; }
.text-sm { font-size: 13px; }
.text-xs { font-size: 11.5px; }
.text-lg { font-size: 16px; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.text-white { color: white; }
.text-gray-400 { color: var(--text-secondary); }
.text-gray-500 { color: var(--text-muted); }
.text-green { color: var(--green); }
.text-red { color: var(--red); }
.text-yellow { color: var(--yellow); }
.text-cyan { color: var(--cyan); }
.text-indigo { color: var(--primary); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.min-w-0 { min-width: 0; }
.flex-1 { flex: 1; }
.flex-shrink-0 { flex-shrink: 0; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-5 { margin-bottom: 20px; }
.mb-6 { margin-bottom: 24px; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.p-3 { padding: 12px; }
.p-4 { padding: 16px; }
.p-5 { padding: 20px; }
.p-6 { padding: 24px; }
.py-2 { padding-top: 8px; padding-bottom: 8px; }
.px-3 { padding-left: 12px; padding-right: 12px; }
.rounded { border-radius: 6px; }
.rounded-lg { border-radius: 10px; }
.rounded-xl { border-radius: 14px; }
.rounded-full { border-radius: 9999px; }
.border-b { border-bottom: 1px solid var(--border); }
.opacity-50 { opacity: 0.5; }
.opacity-0 { opacity: 0; }
.pointer { cursor: pointer; }
.relative { position: relative; }
.absolute { position: absolute; }
.overflow-hidden { overflow: hidden; }
.transition { transition: all 0.15s ease; }
.inline-flex { display: inline-flex; }
.block { display: block; }
.hidden { display: none; }
.text-center { text-align: center; }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.flex-wrap { flex-wrap: wrap; }
.underline { text-decoration: underline; }
.italic { font-style: italic; }

/* ─── Divider ─── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}

/* ─── Status dot ─── */
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-green { background: var(--green); box-shadow: 0 0 6px rgba(16,185,129,0.6); }
.dot-red { background: var(--red); }
.dot-yellow { background: var(--yellow); }
.dot-gray { background: var(--text-muted); }

/* ─── Tooltip ─── */
[data-tip] { position: relative; }
[data-tip]:hover::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: #0f1628;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 5px 10px;
  border-radius: 6px;
  font-size: 11.5px;
  white-space: nowrap;
  z-index: 999;
  pointer-events: none;
}

/* ─── Info Box ─── */
.info-box {
  background: rgba(6,182,212,0.06);
  border: 1px solid rgba(6,182,212,0.2);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 13px;
  color: #7dd3fc;
}

.warning-box {
  background: rgba(245,158,11,0.06);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 13px;
  color: #fcd34d;
}

/* ─── Thumbnail Preview ─── */
.thumbnail-preview {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg-input);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.thumbnail-preview img { width: 100%; height: 100%; object-fit: cover; }

/* ─── Code Block ─── */
.code-block {
  background: #0d1117;
  border: 1px solid #1e293b;
  border-radius: 8px;
  padding: 12px 16px;
  font-family: 'Fira Code', 'Courier New', monospace;
  font-size: 12.5px;
  color: #a5b4fc;
  overflow-x: auto;
  white-space: pre;
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
  :root { --sidebar-w: 200px; }
  .main-content { padding: 16px; }
  .grid-cols-3 { grid-template-columns: 1fr; }
  .grid-cols-2 { grid-template-columns: 1fr; }
}