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

/* ============ THEME VARIABLES ============ */
:root, [data-theme="light"] {
  --bg-page: #f5f7fa;
  --bg-surface: #fff;
  --bg-surface-hover: #f8fafc;
  --bg-input: #fff;
  --bg-elevated: #f8fafc;
  --border: #e2e8f0;
  --border-input: #cbd5e1;
  --border-subtle: #f1f5f9;
  --text-heading: #0f172a;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-body: #334155;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-bg: #eff6ff;
  --accent-border: #bfdbfe;
  --accent-text: #1e40af;
  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --danger-border: #fecaca;
  --success-bg: #dcfce7;
  --success-text: #16a34a;
  --warning-bg: #fef9c3;
  --warning-text: #ca8a04;
  --toast-success-bg: #f0fdf4;
  --toast-success-border: #bbf7d0;
  --toast-error-bg: #fef2f2;
  --toast-error-border: #fecaca;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
  --overlay: rgba(15,23,42,0.4);
}

[data-theme="dark"] {
  --bg-page: #0b1120;
  --bg-surface: #131c31;
  --bg-surface-hover: #1a2744;
  --bg-input: #1a2744;
  --bg-elevated: #1a2744;
  --border: #1e3a5f;
  --border-input: #2d4a6f;
  --border-subtle: #1a2744;
  --text-heading: #f1f5f9;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-body: #cbd5e1;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-bg: rgba(59,130,246,0.12);
  --accent-border: rgba(59,130,246,0.3);
  --accent-text: #93bbfc;
  --danger: #ef4444;
  --danger-bg: rgba(239,68,68,0.12);
  --danger-border: rgba(239,68,68,0.25);
  --success-bg: rgba(34,197,94,0.12);
  --success-text: #4ade80;
  --warning-bg: rgba(234,179,8,0.12);
  --warning-text: #facc15;
  --toast-success-bg: #132b1a;
  --toast-success-border: #166534;
  --toast-error-bg: #2d1515;
  --toast-error-border: #7f1d1d;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
  --overlay: rgba(0,0,0,0.6);
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-page);
  color: var(--text-primary);
  min-height: 100vh;
  transition: background 0.25s, color 0.25s;
}

/* ============ TOP NAV ============ */
.topnav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 28px;
  height: 56px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background 0.25s, border-color 0.25s;
}
.topnav-left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  object-fit: contain;
}
.topnav .logo {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: -0.3px;
}
.topnav-right {
  display: flex;
  align-items: center;
  gap: 10px;
}
.user-greeting {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}
.user-greeting .user-icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--accent);
  flex-shrink: 0;
}
.user-greeting .user-name {
  color: var(--accent);
  font-weight: 600;
}
.btn-logout {
  padding: 6px 14px;
  background: transparent;
  border: 1px solid var(--border-input);
  color: var(--text-muted);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  font-family: 'Inter', sans-serif;
  transition: all 0.2s;
}
.btn-logout:hover {
  border-color: var(--text-secondary);
  color: var(--text-secondary);
  background: var(--bg-surface-hover);
}

/* ============ THEME TOGGLE ============ */
.theme-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  font-family: 'Inter', sans-serif;
  transition: all 0.2s;
  user-select: none;
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.theme-toggle .theme-icon { font-size: 14px; }

/* ============ TAB BAR ============ */
.tab-bar {
  display: flex;
  gap: 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 0 28px;
  overflow-x: auto;
  transition: background 0.25s, border-color 0.25s;
}
.tab-btn {
  padding: 14px 18px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  font-family: 'Inter', sans-serif;
  white-space: nowrap;
  transition: all 0.2s;
}
.tab-btn:hover { color: var(--text-secondary); }
.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ============ MAIN CONTENT ============ */
.main-content {
  padding: 28px;
  max-width: 1200px;
  margin: 0 auto;
}

/* ============ CARDS / SECTIONS ============ */
.section-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-heading);
}
.card {
  background: var(--bg-surface);
  border-radius: 10px;
  padding: 24px;
  margin-bottom: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: background 0.25s, border-color 0.25s;
}

/* ============ STATS GRID ============ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--bg-surface);
  border-radius: 10px;
  padding: 24px;
  text-align: center;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: background 0.25s, border-color 0.25s;
}
.stat-card .stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
}
.stat-card .stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: 500;
}

/* ============ TABLES ============ */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th {
  text-align: left;
  padding: 10px 14px;
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
  color: var(--text-body);
}
tr:hover td { background: var(--bg-surface-hover); }
.url-cell { max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.url-cell a { color: var(--accent); text-decoration: none; }
.url-cell a:hover { text-decoration: underline; }
.truncate { max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: inline-block; vertical-align: middle; }

/* ============ BADGES ============ */
.badge { display: inline-block; padding: 3px 10px; border-radius: 12px; font-size: 11px; font-weight: 600; }
.badge-green { background: var(--success-bg); color: var(--success-text); }
.badge-yellow { background: var(--warning-bg); color: var(--warning-text); }
.badge-red { background: var(--danger-bg); color: var(--danger); }

/* ============ BUTTONS ============ */
.btn {
  padding: 8px 16px; border: none; border-radius: 6px; font-size: 13px; font-weight: 500;
  cursor: pointer; font-family: 'Inter', sans-serif; transition: all 0.15s;
  display: inline-flex; align-items: center; gap: 6px;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-surface); color: var(--text-secondary); border: 1px solid var(--border-input); }
.btn-secondary:hover { background: var(--bg-surface-hover); border-color: var(--text-muted); }
.btn-danger { background: var(--danger-bg); color: var(--danger); border: 1px solid var(--danger-border); }
.btn-danger:hover { opacity: 0.85; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-copy { background: var(--accent-bg); color: var(--accent); border: 1px solid var(--accent-border); }
.btn-copy:hover { opacity: 0.85; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.action-btns { display: flex; gap: 6px; flex-wrap: nowrap; }

.toolbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px; flex-wrap: wrap; gap: 10px;
}
.toolbar-left { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* ============ FORMS ============ */
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block; font-size: 13px; font-weight: 500;
  color: var(--text-secondary); margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 10px 12px; background: var(--bg-input);
  border: 1px solid var(--border-input); border-radius: 6px;
  color: var(--text-primary); font-size: 13px; font-family: 'Inter', sans-serif;
  outline: none; transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.form-group input::placeholder { color: var(--text-muted); }
.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-inline { display: flex; gap: 10px; align-items: flex-end; }
.form-inline .form-group { flex: 1; margin-bottom: 0; }

/* ============ GENERATE RESULTS ============ */
.gen-results {
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: 8px; padding: 16px; margin-top: 16px;
}
.gen-results-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.gen-results-header span { font-weight: 600; color: var(--text-heading); }
.gen-results-list { display: flex; flex-direction: column; gap: 6px; }
.gen-result-item {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--bg-surface); padding: 8px 12px; border-radius: 6px;
  font-size: 13px; border: 1px solid var(--border);
}
.gen-result-item a { color: var(--accent); text-decoration: none; word-break: break-all; }

/* ============ PAGINATION ============ */
.pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 16px; }
.pagination button {
  padding: 6px 12px; background: var(--bg-surface); border: 1px solid var(--border-input);
  color: var(--text-secondary); border-radius: 6px; cursor: pointer;
  font-family: 'Inter', sans-serif; font-size: 13px; transition: all 0.15s;
}
.pagination button:hover { background: var(--bg-surface-hover); border-color: var(--text-muted); }
.pagination button:disabled { opacity: 0.3; cursor: default; }
.pagination span { color: var(--text-muted); font-size: 13px; }

/* ============ MODAL ============ */
.modal-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: var(--overlay); backdrop-filter: blur(4px);
  display: flex; justify-content: center; align-items: center; z-index: 200;
}
.modal-box {
  background: var(--bg-surface); border-radius: 12px; padding: 28px;
  width: 100%; max-width: 520px; max-height: 90vh; overflow-y: auto;
  box-shadow: var(--shadow-lg); border: 1px solid var(--border);
}
.modal-box h2 { font-size: 18px; font-weight: 700; color: var(--text-heading); margin-bottom: 20px; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

/* ============ TOAST ============ */
.toast-container {
  position: fixed; top: 20px; right: 20px; z-index: 300;
  display: flex; flex-direction: column; gap: 8px;
}
.toast {
  padding: 12px 20px; border-radius: 8px; font-size: 13px; font-weight: 500;
  animation: toastIn 0.3s ease; max-width: 360px; box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.toast-success { background: var(--toast-success-bg); color: var(--success-text); border: 1px solid var(--toast-success-border); }
.toast-error { background: var(--toast-error-bg); color: var(--danger); border: 1px solid var(--toast-error-border); }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ============ NS INFO BOX ============ */
.ns-info {
  background: var(--accent-bg); border-left: 3px solid var(--accent);
  padding: 14px 18px; border-radius: 0 8px 8px 0;
  margin-top: 12px; font-size: 13px; color: var(--accent-text);
}
.ns-info code {
  display: block; margin-top: 6px; color: var(--accent-text);
  font-family: 'Courier New', monospace; font-weight: 600;
}

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

/* ============ EMPTY STATE ============ */
.empty-state { text-align: center; padding: 48px 20px; color: var(--text-muted); }
.empty-state p { font-size: 14px; margin-top: 8px; }

/* ============ IMAGE PREVIEW ============ */
.img-preview { max-width: 200px; max-height: 120px; border-radius: 8px; margin-top: 8px; display: none; }

/* ============ INLINE HELPERS ============ */
.t-heading { color: var(--text-heading); }
.t-secondary { color: var(--text-secondary); }
.t-muted { color: var(--text-muted); }
.t-accent { color: var(--accent); }
.bg-elevated { background: var(--bg-elevated); }
.b-border { border-color: var(--border); }

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .main-content { padding: 16px; }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .toolbar { flex-direction: column; align-items: stretch; }
}