:root {
  --primary: #0d9488;
  --primary-dark: #0f766e;
  --primary-light: #ccfbf1;
  --sidebar-bg: #0f172a;
  --sidebar-text: #94a3b8;
  --sidebar-hover: #1e293b;
  --sidebar-active-bg: #0d9488;
  --sidebar-active-text: #ffffff;
  --bg: #f1f5f9;
  --card-bg: #ffffff;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --danger: #ef4444;
  --danger-dark: #dc2626;
  --success: #22c55e;
  --warning: #f59e0b;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --radius: 8px;
  --sidebar-width: 220px;
  --input-bg: #ffffff;
}

/* ── Dark Mode ─────────────────────────────── */
[data-theme="dark"] {
  --bg: #0f172a;
  --card-bg: #1e293b;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --border: #334155;
  --shadow: 0 1px 3px rgba(0,0,0,.3), 0 1px 2px rgba(0,0,0,.2);
  --shadow-md: 0 4px 6px rgba(0,0,0,.3), 0 2px 4px rgba(0,0,0,.2);
  --primary-light: #134e4a;
  --input-bg: #0f172a;
}
[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select,
[data-theme="dark"] .form-group textarea {
  background: var(--input-bg);
  color: var(--text);
  border-color: var(--border);
}
[data-theme="dark"] .alert-error  { background: #450a0a; color: #fca5a5; border-color: #7f1d1d; }
[data-theme="dark"] .alert-success { background: #052e16; color: #86efac; border-color: #14532d; }
[data-theme="dark"] .badge-success { background: #052e16; color: #86efac; }
[data-theme="dark"] .badge-warn    { background: #422006; color: #fcd34d; }
[data-theme="dark"] .badge-error   { background: #450a0a; color: #fca5a5; }
[data-theme="dark"] .tree-location > .tree-row { background: #162032; }
[data-theme="dark"] code { background: #0f172a; border-color: var(--border); color: #5eead4; }
[data-theme="dark"] .toast.success { background: #166534; }
[data-theme="dark"] .toast.error   { background: #991b1b; }
[data-theme="dark"] .upload-area:hover,
[data-theme="dark"] .upload-area.drag-over { background: #134e4a; }

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

/* ── Utilities ─────────────────────────────── */
.hidden { display: none !important; }
.page { min-height: 100vh; }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.text-sm { font-size: 12px; }
.text-danger { color: var(--danger); }
.flex { display: flex; }
.gap-2 { gap: 8px; }
.gap-1 { gap: 4px; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mb-2 { margin-bottom: 8px; }

/* ── Auth Pages ─────────────────────────────── */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f172a 0%, #134e4a 100%);
  min-height: 100vh;
}

.auth-card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
}

.auth-logo {
  display: flex;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 16px;
}

.auth-card h1 {
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.auth-subtitle {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: .04em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 4px;
}

.auth-form { margin-top: 24px; }

.qr-container {
  display: flex;
  justify-content: center;
  margin: 16px 0;
}
.qr-container img {
  border: 4px solid var(--border);
  border-radius: var(--radius);
}

.totp-input {
  text-align: center;
  font-size: 24px;
  letter-spacing: 8px;
  font-weight: 700;
}

/* ── App Layout ─────────────────────────────── */
#page-app {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px;
  color: #ffffff;
  border-bottom: 1px solid rgba(255,255,255,.07);
  flex-shrink: 0;
}
.sidebar-brand svg { flex-shrink: 0; }
.sidebar-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.sidebar-brand-name {
  font-weight: 700;
  font-size: 15px;
  color: #ffffff;
}
.sidebar-brand-sub {
  font-size: 10px;
  color: rgba(255,255,255,.45);
  font-weight: 500;
  letter-spacing: .02em;
  text-transform: uppercase;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius);
  color: var(--sidebar-text);
  text-decoration: none;
  font-weight: 500;
  transition: background .15s, color .15s;
}
.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }
.nav-item:hover { background: var(--sidebar-hover); color: #ffffff; }
.nav-item.active { background: var(--sidebar-active-bg); color: var(--sidebar-active-text); }

.sidebar-footer {
  padding: 12px;
  border-top: 1px solid rgba(255,255,255,.07);
}

/* ── Theme toggle ─────────────────────────────── */
.btn-theme-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: transparent;
  border: none;
  border-radius: var(--radius);
  color: var(--sidebar-text);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: background .15s, color .15s;
  margin-bottom: 4px;
}
.btn-theme-toggle svg { width: 16px; height: 16px; }
.btn-theme-toggle:hover { background: var(--sidebar-hover); color: #ffffff; }

/* Show/hide theme icons based on current mode */
/* Default (light mode): show moon icon + "Dark Mode" label */
.btn-theme-toggle .theme-icon-light { display: none; }
.btn-theme-toggle .theme-label-light { display: none; }
/* Dark mode: show sun icon + "Light Mode" label */
[data-theme="dark"] .btn-theme-toggle .theme-icon-dark { display: none; }
[data-theme="dark"] .btn-theme-toggle .theme-label-dark { display: none; }
[data-theme="dark"] .btn-theme-toggle .theme-icon-light { display: flex; }
[data-theme="dark"] .btn-theme-toggle .theme-label-light { display: inline; }

.btn-logout {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: transparent;
  border: none;
  border-radius: var(--radius);
  color: var(--sidebar-text);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: background .15s, color .15s;
}
.btn-logout svg { width: 18px; height: 18px; }
.btn-logout:hover { background: rgba(239,68,68,.15); color: #fca5a5; }

.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

.view { min-height: 100%; }

/* ── Page Header ─────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.page-header h2 { font-size: 20px; font-weight: 700; }

/* ── Cards ─────────────────────────────── */
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.card-body { padding: 20px; }
.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-header h3 { font-size: 15px; font-weight: 600; }

/* ── Buttons ─────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: background .15s, opacity .15s;
  text-decoration: none;
  white-space: nowrap;
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn svg { width: 15px; height: 15px; }

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--primary-dark); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover:not(:disabled) { background: var(--danger-dark); }

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover:not(:disabled) { background: var(--bg); color: var(--text); }

.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-full { width: 100%; justify-content: center; }
.btn-icon {
  padding: 5px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 6px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  transition: background .15s, color .15s;
}
.btn-icon svg { width: 14px; height: 14px; }
.btn-icon:hover { background: var(--bg); color: var(--text); }
.btn-icon.danger:hover { background: #fee2e2; color: var(--danger); border-color: #fca5a5; }

/* ── Forms ─────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 13px;
  margin-bottom: 6px;
  color: var(--text);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  background: #fff;
  color: var(--text);
  transition: border-color .15s, box-shadow .15s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(13,148,136,.15);
}
.form-group textarea { resize: vertical; min-height: 80px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* ── Alerts ─────────────────────────────── */
.alert {
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-top: 12px;
}
.alert-error { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.alert-success { background: #dcfce7; color: #166534; border: 1px solid #86efac; }

/* ── Client Tree ─────────────────────────────── */
.tree { }

.tree-client {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.tree-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  cursor: pointer;
  user-select: none;
  transition: background .1s;
}
.tree-row:hover { background: var(--bg); }

.tree-toggle {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: transform .2s;
  flex-shrink: 0;
}
.tree-toggle.open { transform: rotate(90deg); }
.tree-toggle svg { width: 12px; height: 12px; }

.tree-icon { flex-shrink: 0; }
.tree-icon svg { width: 16px; height: 16px; }

.tree-label { flex: 1; font-weight: 600; font-size: 14px; }
.tree-meta { font-size: 11px; color: var(--text-muted); margin-left: 4px; font-weight: 400; }
.tree-actions { display: flex; gap: 4px; opacity: 0; transition: opacity .15s; }
.tree-row:hover .tree-actions { opacity: 1; }

.tree-children { padding-left: 0; border-top: 1px solid var(--border); }
.tree-location { border-bottom: 1px solid var(--border); }
.tree-location:last-child { border-bottom: none; }

.tree-location > .tree-row { padding-left: 32px; background: #fafafa; }
.tree-sublocation > .tree-row { padding-left: 52px; }
.tree-printer-row { padding-left: 72px; }
.tree-add-row { padding-left: 72px; border-bottom: none; }

.tree-printer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px 8px 72px;
  border-bottom: 1px solid var(--border);
  transition: background .1s;
}
.tree-printer:last-child { border-bottom: none; }
.tree-printer:hover { background: var(--bg); }
.tree-printer .tree-label { font-weight: 500; }
.tree-printer .tree-actions { opacity: 0; transition: opacity .15s; }
.tree-printer:hover .tree-actions { opacity: 1; }

.printer-badge {
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 600;
}

.add-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  color: var(--primary);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  border-top: 1px dashed var(--border);
  transition: background .1s;
}
.add-row:hover { background: var(--primary-light); }
.add-row svg { width: 14px; height: 14px; }

/* ── Drivers Grid ─────────────────────────────── */
.drivers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 16px;
}
.driver-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.driver-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}
.driver-name { font-weight: 700; font-size: 15px; }
.driver-wname { font-size: 12px; color: var(--text-muted); }
.driver-file { font-size: 12px; color: var(--text-muted); }
.driver-size { font-size: 11px; background: var(--bg); padding: 2px 8px; border-radius: 999px; color: var(--text-muted); }

/* ── Settings ─────────────────────────────── */
.settings-section { margin-bottom: 28px; }
.settings-section h3 { font-size: 16px; font-weight: 700; margin-bottom: 12px; }

/* ── Modal ─────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
}
.modal {
  background: var(--card-bg);
  border-radius: 12px;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
  display: flex;
  flex-direction: column;
  max-height: 90vh;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 { font-size: 16px; font-weight: 700; }
.modal-close {
  background: none;
  border: none;
  font-size: 22px;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  padding: 0 4px;
}
.modal-close:hover { color: var(--text); }
.modal-body { padding: 20px; overflow-y: auto; }
.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* ── Toast ─────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 2000;
}
.toast {
  padding: 12px 18px;
  border-radius: var(--radius);
  color: #fff;
  font-weight: 600;
  font-size: 13px;
  box-shadow: var(--shadow-md);
  animation: slideIn .2s ease;
  max-width: 320px;
}
.toast.success { background: #166534; }
.toast.error { background: #991b1b; }
.toast.info { background: #1e40af; }

@keyframes slideIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── API Key display ─────────────────────────────── */
.api-key-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-family: monospace;
  font-size: 12px;
  color: var(--text-muted);
  word-break: break-all;
  flex: 1;
}

/* ── Empty State ─────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}
.empty-state svg { width: 48px; height: 48px; margin-bottom: 12px; opacity: .4; }
.empty-state p { font-size: 15px; }

/* ── Upload area ─────────────────────────────── */
.upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.upload-area:hover, .upload-area.drag-over {
  border-color: var(--primary);
  background: var(--primary-light);
}
.upload-area input[type=file] { display: none; }
.upload-area-icon { font-size: 28px; margin-bottom: 8px; }
.upload-area-text { font-size: 13px; color: var(--text-muted); }
.upload-link {
  color: var(--primary);
  cursor: pointer;
  font-weight: 600;
  text-decoration: underline;
}

/* ── Badges ─────────────────────────────── */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge-success { background: #dcfce7; color: #166534; }
.badge-warn    { background: #fef9c3; color: #854d0e; }
.badge-error   { background: #fee2e2; color: #991b1b; }

/* ── Spacing utilities ─────────────────────────────── */
.mb-3  { margin-bottom: 12px; }
.mt-3  { margin-top: 12px; }
.ml-2  { margin-left: 8px; }

/* ── Progress bar ─────────────────────────────── */
.progress-bar-track {
  width: 100%;
  height: 6px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 999px;
  transition: width .15s ease;
}

/* ── Spinner ─────────────────────────────── */
.spinner-sm {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .6s linear infinite;
  vertical-align: middle;
  margin-right: 4px;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Binary status row ─────────────────────────────── */
.binary-status-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 28px;
}

/* ── Code inline ─────────────────────────────── */
code {
  font-family: 'SFMono-Regular', Consolas, monospace;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 12px;
  color: var(--primary-dark);
}

/* ── Modal Tabs ─────────────────────────────── */
.modal-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--border);
  padding-bottom: 0;
}
.tab-btn {
  background: none;
  border: none;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color .15s, border-color .15s;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-panel { }

/* ── Deployment list ─────────────────────────────── */
.deploy-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}
.deploy-item:last-child { border-bottom: none; }

.deploy-add-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

/* ── Computers table ─────────────────────────────── */
.computers-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.computers-table th {
  text-align: left;
  padding: 8px 16px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .05em;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.computers-table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
}
.computers-table tr:last-child td { border-bottom: none; }
.computers-table tr:hover td { background: var(--bg); }

/* ── Install command block ────────────────────────── */
.install-cmd-block {
  padding: 12px 16px;
  background: #0f172a;
}
.install-cmd-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: #64748b;
  margin-bottom: 8px;
}
.install-cmd-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.install-cmd-code {
  flex: 1;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 12px;
  color: #e2e8f0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  background: none;
  border: none;
  padding: 0;
  user-select: all;
}
.install-cmd-copy {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  border: 1px solid #334155;
  background: #1e293b;
  color: #94a3b8;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.install-cmd-copy:hover {
  background: #0d9488;
  border-color: #0d9488;
  color: #fff;
}
.install-cmd-copy .icon-check { display: none; }
.install-cmd-copy.copied { background: #14532d; border-color: #22c55e; color: #86efac; }
.install-cmd-copy.copied .icon-copy  { display: none; }
.install-cmd-copy.copied .icon-check { display: block; }

/* ── Folder tree node ─────────────────────────────── */
.tree-folder { border-bottom: 1px solid var(--border); }
.tree-folder:last-child { border-bottom: none; }
.tree-folder > .tree-children { border-top: 1px solid var(--border); }

/* ── mb-3 already exists, add extra utilities ─────── */
.mb-3 { margin-bottom: 12px; }