/* ===== K-Service Design System ===== */
:root {
  --ks-blue: #1D436B;
  --ks-orange: #FF6600;
  --ks-blue-light: #3a6ea5;
  --ks-blue-hover: #152f4d;
  --ks-blue-50: #e8eef5;
  --ks-blue-100: #d1dde9;
  --ks-orange-light: #ff8533;
  --ks-orange-50: #fff4eb;
  --ks-surface: #f7f8fa;
  --ks-bg: #ffffff;
  --ks-text: #1a1d23;
  --ks-text-sec: #6b7280;
  --ks-text-muted: #9ca3af;
  --ks-border: #e5e7eb;
  --ks-border-light: #f0f1f3;
  --ks-success: #16a34a;
  --ks-success-bg: #f0fdf4;
  --ks-warning: #d97706;
  --ks-warning-bg: #fffbeb;
  --ks-error: #dc2626;
  --ks-error-bg: #fef2f2;
  --ks-info: #2563eb;
  --ks-info-bg: #eff6ff;
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-elevated: 0 10px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.06);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  --transition-slow: 0.3s ease;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ks-text);
  background: var(--ks-surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Page animation */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}
.main { animation: fadeIn 0.3s ease; }

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

/* ===== Sidebar ===== */
.sidebar {
  width: 256px;
  min-width: 256px;
  background: linear-gradient(180deg, #1a3a5c 0%, #1D436B 100%);
  color: #fff;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
}
.sidebar-header {
  padding: 24px 20px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sidebar-header .logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-header .logo .logo-icon {
  width: 28px;
  height: 28px;
  background: var(--ks-orange);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
}
.sidebar-header .logo .brand-bracket {
  color: var(--ks-orange);
}
.sidebar-header .subtitle {
  font-size: 11px;
  opacity: 0.5;
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 500;
}

/* Sidebar nav */
.sidebar-nav { padding: 12px 8px; flex: 1; }
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  position: relative;
  margin-bottom: 2px;
}
.sidebar-nav a:hover {
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.95);
}
.sidebar-nav a.active {
  background: rgba(255,255,255,0.12);
  color: #fff;
  font-weight: 600;
}
.sidebar-nav a.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background: linear-gradient(180deg, var(--ks-orange), var(--ks-orange-light));
  border-radius: 0 2px 2px 0;
}
.sidebar-nav .nav-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.sidebar-nav .nav-icon svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.sidebar-footer .version {
  font-size: 11px;
  opacity: 0.35;
  font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
  letter-spacing: 0.5px;
}
.sidebar-footer .brand-tag {
  font-size: 10px;
  opacity: 0.3;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===== Main content ===== */
.main {
  flex: 1;
  padding: 32px 36px;
  max-width: 100%;
  overflow-x: auto;
  min-width: 0;
}

/* Breadcrumbs */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
  font-size: 12px;
  color: var(--ks-text-muted);
}
.breadcrumbs a {
  color: var(--ks-text-sec);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.breadcrumbs a:hover { color: var(--ks-blue); }
.breadcrumbs .separator {
  color: var(--ks-text-muted);
  font-size: 10px;
}
.breadcrumbs .current {
  color: var(--ks-text);
  font-weight: 500;
}

/* Page header */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
}
.page-header h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--ks-text);
  margin: 0;
  letter-spacing: -0.3px;
}
.page-header h1 .brand-bracket {
  color: var(--ks-orange);
}

/* ===== Stat Cards ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}
.stat-card {
  background: var(--ks-bg);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--ks-border-light);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}
.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.stat-card .stat-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}
.stat-card .stat-icon svg {
  width: 20px;
  height: 20px;
  stroke-width: 1.8;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.stat-card .stat-icon.blue { background: var(--ks-blue-50); color: var(--ks-blue); }
.stat-card .stat-icon.blue svg { stroke: var(--ks-blue); }
.stat-card .stat-icon.orange { background: var(--ks-orange-50); color: var(--ks-orange); }
.stat-card .stat-icon.orange svg { stroke: var(--ks-orange); }
.stat-card .stat-icon.green { background: var(--ks-success-bg); color: var(--ks-success); }
.stat-card .stat-icon.green svg { stroke: var(--ks-success); }
.stat-card .stat-icon.red { background: var(--ks-error-bg); color: var(--ks-error); }
.stat-card .stat-icon.red svg { stroke: var(--ks-error); }
.stat-card .stat-label {
  font-size: 12px;
  color: var(--ks-text-sec);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
  font-weight: 600;
}
.stat-card .stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--ks-text);
  letter-spacing: -0.5px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.stat-card .stat-value .brand-bracket {
  color: var(--ks-orange);
}
.stat-card .stat-sparkline {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 80px;
  height: 32px;
  opacity: 0.15;
}
.stat-card .stat-trend {
  font-size: 12px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 6px;
  border-radius: 4px;
}
.stat-card .stat-trend.up { color: var(--ks-success); background: var(--ks-success-bg); }
.stat-card .stat-trend.down { color: var(--ks-error); background: var(--ks-error-bg); }

/* ===== Tables ===== */
.table-card {
  background: var(--ks-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--ks-border-light);
  overflow: hidden;
  margin-bottom: 20px;
}
.table-card .table-header {
  padding: 16px 20px;
  font-weight: 600;
  font-size: 14px;
  color: var(--ks-text);
  border-bottom: 1px solid var(--ks-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.table-card .table-header strong {
  color: var(--ks-blue);
}
.table-scroll { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
}
table th {
  text-align: left;
  padding: 10px 16px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--ks-text-sec);
  background: var(--ks-surface);
  border-bottom: 1px solid var(--ks-border);
  font-weight: 600;
  user-select: none;
  white-space: nowrap;
  position: sticky;
  top: 0;
  z-index: 1;
}
table th.sortable { cursor: pointer; }
table th.sortable:hover { color: var(--ks-blue); }
table th.sortable::after {
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 4px;
  vertical-align: middle;
  opacity: 0.3;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
}
table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--ks-border-light);
  font-size: 13px;
  color: var(--ks-text);
}
table tr { transition: background var(--transition-fast); }
table tbody tr:hover { background: #f9fafb; }
table tr:last-child td { border-bottom: none; }
.table-card tbody tr[onclick] { cursor: pointer; }

/* Monospace cells */
.mono {
  font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
  font-size: 12px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-base);
  font-family: inherit;
  line-height: 1.4;
  white-space: nowrap;
}
.btn svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.btn-primary {
  background: var(--ks-blue);
  color: #fff;
  border-color: var(--ks-blue);
}
.btn-primary:hover {
  background: var(--ks-blue-hover);
  border-color: var(--ks-blue-hover);
  box-shadow: var(--shadow-sm);
}
.btn-outline {
  background: transparent;
  color: var(--ks-text-sec);
  border-color: var(--ks-border);
}
.btn-outline:hover {
  border-color: var(--ks-blue);
  color: var(--ks-blue);
  background: var(--ks-blue-50);
}
.btn-danger {
  background: var(--ks-error);
  color: #fff;
  border-color: var(--ks-error);
}
.btn-danger:hover { background: #b91c1c; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-sm svg { width: 12px; height: 12px; }
.btn-ghost {
  background: transparent;
  color: var(--ks-text-sec);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--ks-surface); color: var(--ks-text); }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: lowercase;
  letter-spacing: 0.2px;
}
.badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.badge-online { background: var(--ks-success-bg); color: var(--ks-success); }
.badge-online::before { background: var(--ks-success); animation: pulse 2s infinite; }
.badge-offline { background: #f3f4f6; color: var(--ks-text-muted); }
.badge-offline::before { background: var(--ks-text-muted); }
.badge-active { background: var(--ks-info-bg); color: var(--ks-info); }
.badge-active::before { background: var(--ks-info); }
.badge-completed { background: var(--ks-success-bg); color: var(--ks-success); }
.badge-completed::before { background: var(--ks-success); }
.badge-disputed { background: var(--ks-warning-bg); color: var(--ks-warning); }
.badge-disputed::before { background: var(--ks-warning); }
.badge-open { background: var(--ks-warning-bg); color: var(--ks-warning); }
.badge-open::before { background: var(--ks-warning); }
.badge-resolved { background: var(--ks-success-bg); color: var(--ks-success); }
.badge-resolved::before { background: var(--ks-success); }
.badge-blocked { background: var(--ks-error-bg); color: var(--ks-error); }
.badge-blocked::before { background: var(--ks-error); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ===== Filters ===== */
.filters-bar {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.filters-bar select,
.filters-bar input {
  padding: 8px 12px;
  font-size: 13px;
  border: 1px solid var(--ks-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  background: var(--ks-bg);
  color: var(--ks-text);
  transition: all var(--transition-fast);
}
.filters-bar select:hover,
.filters-bar input:hover {
  border-color: #d1d5db;
}
.filters-bar select:focus,
.filters-bar input:focus {
  outline: none;
  border-color: var(--ks-blue);
  box-shadow: 0 0 0 3px rgba(29,67,107,0.1);
}

/* ===== Modal ===== */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(4px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--ks-bg);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 480px;
  max-width: 90vw;
  box-shadow: var(--shadow-elevated);
  animation: modalIn 0.25s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.modal h2 {
  margin: 0 0 24px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ks-text);
}
.modal h2 .brand-bracket { color: var(--ks-orange); }

/* Form groups */
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--ks-text-sec);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  font-size: 14px;
  border: 1px solid var(--ks-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  background: var(--ks-bg);
  color: var(--ks-text);
  transition: all var(--transition-fast);
}
.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
  border-color: #d1d5db;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--ks-blue);
  box-shadow: 0 0 0 3px rgba(29,67,107,0.1);
}
.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--ks-border-light);
}

/* ===== Chart ===== */
.chart-container {
  background: var(--ks-bg);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--ks-border-light);
  margin-bottom: 20px;
}
.chart-container h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--ks-text);
  margin: 0 0 16px;
}
.chart-container h3 span {
  font-weight: 400;
  color: var(--ks-text-muted);
  font-size: 12px;
}
.chart-canvas-wrap {
  position: relative;
  width: 100%;
  height: 220px;
}
.chart-canvas-wrap canvas {
  width: 100% !important;
  height: 100% !important;
}

/* Legacy chart bars fallback */
.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 120px;
}
.chart-bar {
  flex: 1;
  background: linear-gradient(180deg, var(--ks-blue) 0%, var(--ks-blue-light) 100%);
  border-radius: 3px 3px 0 0;
  min-height: 2px;
  transition: height var(--transition-slow), background var(--transition-fast);
  position: relative;
}
.chart-bar:hover { background: var(--ks-orange); }
.chart-labels {
  display: flex;
  gap: 3px;
  margin-top: 8px;
}
.chart-labels span {
  flex: 1;
  font-size: 9px;
  color: var(--ks-text-muted);
  text-align: center;
}

/* ===== Inline Edit ===== */
.inline-edit {
  cursor: pointer;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.inline-edit:hover {
  border-color: var(--ks-blue);
  background: var(--ks-blue-50);
}
.inline-edit::after {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  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='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M17 3a2.828 2.828 0 1 1 4 4L7.5 20.5 2 22l1.5-5.5L17 3z'/%3E%3C/svg%3E");
  background-size: contain;
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.inline-edit:hover::after { opacity: 1; }
.inline-edit-form { display: none; }
.inline-edit-form.active { display: inline-flex; gap: 4px; align-items: center; }
.inline-edit-form input {
  width: 90px;
  padding: 4px 8px;
  font-size: 13px;
  border: 1px solid var(--ks-blue);
  border-radius: var(--radius-sm);
  font-family: inherit;
  box-shadow: 0 0 0 3px rgba(29,67,107,0.1);
}

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--ks-text-muted);
  animation: emptyFadeIn 0.5s ease;
}
.empty-state .empty-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: var(--ks-surface);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: emptyBounce 0.6s ease 0.2s both;
}
.empty-state .empty-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--ks-text-muted);
  stroke-width: 1.5;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.empty-state p {
  margin: 0;
  font-size: 14px;
}
@keyframes emptyFadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes emptyBounce {
  from { opacity: 0; transform: scale(0.5); }
  60% { transform: scale(1.05); }
  to { opacity: 1; transform: scale(1); }
}

/* ===== Toast Notifications ===== */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  background: var(--ks-bg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--ks-border-light);
  font-size: 13px;
  font-weight: 500;
  color: var(--ks-text);
  pointer-events: auto;
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards;
  max-width: 360px;
}
.toast svg {
  width: 18px;
  height: 18px;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}
.toast.success { border-left: 3px solid var(--ks-success); }
.toast.success svg { stroke: var(--ks-success); }
.toast.error { border-left: 3px solid var(--ks-error); }
.toast.error svg { stroke: var(--ks-error); }
.toast.warning { border-left: 3px solid var(--ks-warning); }
.toast.warning svg { stroke: var(--ks-warning); }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(20px); }
}

/* ===== Brand bracket ===== */
.brand-bracket {
  color: var(--ks-orange);
}

/* ===== Tooltip ===== */
[data-tooltip] {
  position: relative;
}
[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 8px;
  background: var(--ks-text);
  color: #fff;
  font-size: 11px;
  border-radius: 4px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
  z-index: 10;
}
[data-tooltip]:hover::after { opacity: 1; }

/* ===== Hamburger Button ===== */
.hamburger {
  display: none;
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 200;
  width: 40px;
  height: 40px;
  background: var(--ks-bg);
  border: 1px solid var(--ks-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  transition: all var(--transition-base);
}
.hamburger:hover { box-shadow: var(--shadow-lg); border-color: var(--ks-blue); }
.hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ks-text);
  border-radius: 1px;
  transition: all var(--transition-base);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

/* ===== Sidebar Overlay ===== */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(2px);
  z-index: 99;
}
.sidebar-overlay.active { display: block; }

/* ===== Responsive ===== */
/* ===== Mobile: планшеты ===== */
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .sidebar {
    position: fixed;
    left: -256px;
    transition: left var(--transition-slow);
    z-index: 150;
  }
    .sidebar.open { left: 0; }
  body.sidebar-open .hamburger { display: none; }
  .main { padding: 20px 16px; padding-top: 64px; }
  .cards-grid { grid-template-columns: 1fr 1fr; }
  .page-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .page-header h1 { font-size: 20px; }
  .table-scroll { 
    margin: 0 -16px;
    padding: 0 16px;
    width: calc(100% + 32px);
  }
  .search-bar { flex-direction: column; align-items: stretch; }
  .search-input-wrap { max-width: 100%; }
  .filters-bar select,
  .filters-bar input { width: 100%; }
  .modal { width: 95vw; padding: 20px; }
  .stat-card .stat-value { font-size: 24px; }
}

/* ===== Mobile: телефоны ===== */
@media (max-width: 480px) {
  .cards-grid { grid-template-columns: 1fr; }
  .page-header h1 { font-size: 18px; }
  .page-header .btn { width: 100%; justify-content: center; }
  .main { padding: 12px; padding-top: 56px; }
  
  /* Карточный вид таблиц */
  table { display: block; }
  table thead { display: none; }
  table tbody { display: block; }
  table tbody tr {
    display: block;
    padding: 12px;
    margin-bottom: 8px;
    background: var(--ks-bg);
    border: 1px solid var(--ks-border-light);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xs);
  }
  table tbody tr:nth-child(even) { background: var(--ks-bg); }
  table tbody tr:hover { background: var(--ks-blue-50); }
  table td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    border: none;
    font-size: 13px;
    gap: 8px;
  }
  table td::before {
    content: attr(data-label);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: var(--ks-text-sec);
    font-weight: 600;
    flex-shrink: 0;
  }
  table td:last-child { border-bottom: none; }
  table td .badge { flex-shrink: 0; }
  
  /* Touch-targets: min 44px */
  .btn { min-height: 44px; }
  .sidebar-nav a { min-height: 44px; padding: 12px; }
  .pagination a,
  .pagination span { min-width: 44px; height: 44px; }
  .inline-edit { padding: 8px 12px; }
  .hamburger { width: 44px; height: 44px; }
  
  /* Модалка во весь экран */
  .modal-overlay { align-items: flex-end; }
  .modal {
    width: 100vw;
    max-width: 100vw;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    max-height: 85vh;
    overflow-y: auto;
    padding: 24px 20px;
  }
  @keyframes modalMobileIn {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .modal-overlay.active .modal { animation: modalMobileIn 0.3s ease; }
  
  /* toast на всю ширину */
  .toast { max-width: calc(100vw - 32px); }
  .toast-container { top: auto; bottom: 20px; right: 16px; left: 16px; }
  
  /* кнопки в таблице */
  table td .btn { width: 100%; justify-content: center; }
  table td form { width: 100%; }
  table td form .btn { width: auto; }
  
  /* inline edit на мобилке */
  .inline-edit-form { flex-wrap: wrap; width: 100%; }
  .inline-edit-form input { flex: 1; min-width: 80px; }
  
  /* Breadcrumbs */
  .breadcrumbs { font-size: 11px; flex-wrap: wrap; }
  
  /* Заголовок с кнопкой */
  .page-header .btn { margin-top: 4px; }
  
  /* Сомнительные таблицы - скролл */
  .table-card table td.mono { font-size: 11px; }
}

/* ===== Loading skeleton ===== */
@keyframes shimmer {
  0% { background-position: -200px 0; }
  100% { background-position: 200px 0; }
}
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 400px 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
  height: 14px;
}
.skeleton-row {
  display: flex;
  gap: 16px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--ks-border-light);
}
.skeleton-row .skeleton { flex: 1; }

/* ===== Sidebar Header ===== */
.sidebar-header {
  padding: 20px 16px 12px;
  border-bottom: 1px solid var(--ks-border-light);
  position: relative;
}
.sidebar-close {
  display: none;
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  font-size: 22px;
  cursor: pointer;
  color: var(--ks-text-sec);
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.sidebar-close:hover { background: var(--ks-hover); color: var(--ks-text); }
@media (max-width: 768px) {
  .sidebar-close { display: flex; }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #9ca3af; }

/* ===== Pagination ===== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ks-text-sec);
  background: var(--ks-bg);
  border: 1px solid var(--ks-border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--transition-fast);
  user-select: none;
}
.pagination a:hover {
  border-color: var(--ks-blue);
  color: var(--ks-blue);
  background: var(--ks-blue-50);
}
.pagination .active {
  background: var(--ks-orange);
  color: #fff;
  border-color: var(--ks-orange);
  font-weight: 600;
}
.pagination .active:hover {
  background: var(--ks-orange-light);
  border-color: var(--ks-orange-light);
  color: #fff;
}
.pagination .disabled {
  opacity: 0.4;
  pointer-events: none;
  cursor: default;
}

/* ===== Search / Filter Input ===== */
.search-bar {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.search-input-wrap {
  position: relative;
  flex: 1;
  min-width: 200px;
  max-width: 400px;
}
.search-input-wrap .search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  pointer-events: none;
}
.search-input-wrap .search-icon svg {
  width: 16px;
  height: 16px;
  stroke: var(--ks-text-muted);
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.search-input-wrap input {
  width: 100%;
  padding: 8px 12px 8px 36px;
  font-size: 13px;
  border: 1px solid var(--ks-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  background: var(--ks-bg);
  color: var(--ks-text);
  transition: all var(--transition-fast);
}
.search-input-wrap input:hover { border-color: #d1d5db; }
.search-input-wrap input:focus {
  outline: none;
  border-color: var(--ks-blue);
  box-shadow: 0 0 0 3px rgba(29,67,107,0.1);
}
.result-count {
  font-size: 13px;
  color: var(--ks-text-sec);
  white-space: nowrap;
}

/* ===== Zebra Striping ===== */
table tbody tr:nth-child(even) {
  background: #fafbfc;
}

/* ===== Table Row Hover ===== */
table tbody tr {
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
}
table tbody tr:hover {
  background: var(--ks-blue-50);
}
.table-card tbody tr[onclick]:hover {
  box-shadow: inset 3px 0 0 var(--ks-orange);
}

/* ===== Table Column Resize ===== */
table {
  table-layout: auto;
}
table th,
table td {
  min-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== Focus Visible ===== */
*:focus-visible {
  outline: 2px solid var(--ks-blue);
  outline-offset: 2px;
}
button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--ks-blue);
  outline-offset: 2px;
}
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--ks-blue);
  outline-offset: 1px;
}

/* ===== Disabled Button ===== */
.btn:disabled,
.btn.disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
  box-shadow: none;
  transform: none;
}

/* ===== Progress Bar ===== */
.progress-bar-wrap {
  background: var(--ks-border-light);
  border-radius: 20px;
  height: 8px;
  overflow: hidden;
  margin-top: 8px;
}
.progress-bar-fill {
  height: 100%;
  border-radius: 20px;
  background: linear-gradient(90deg, var(--ks-blue), var(--ks-blue-light));
  transition: width 0.6s ease;
}
.progress-bar-fill.orange { background: linear-gradient(90deg, var(--ks-orange), var(--ks-orange-light)); }
.progress-bar-fill.green { background: linear-gradient(90deg, var(--ks-success), #22c55e); }
.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--ks-text-sec);
  margin-bottom: 4px;
}

/* ===== Timeline ===== */
.timeline {
  position: relative;
  padding: 16px 0;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--ks-border);
}
.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  position: relative;
  padding: 8px 0 20px 0;
}
.timeline-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--ks-blue-50);
  border: 2px solid var(--ks-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  z-index: 1;
}
.timeline-dot svg {
  width: 14px;
  height: 14px;
  stroke: var(--ks-blue);
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.timeline-content {
  flex: 1;
  min-width: 0;
}
.timeline-content .timeline-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ks-text);
  margin-bottom: 2px;
}
.timeline-content .timeline-time {
  font-size: 12px;
  color: var(--ks-text-muted);
  font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
}
.timeline-content .timeline-meta {
  font-size: 12px;
  color: var(--ks-text-sec);
  margin-top: 2px;
}

/* ===== Sparkline (CSS bar) ===== */
.sparkline {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 24px;
  opacity: 0.25;
  position: absolute;
  bottom: 16px;
  right: 20px;
}
.sparkline .bar {
  width: 4px;
  border-radius: 2px 2px 0 0;
  background: var(--ks-text);
  transition: height 0.4s ease;
}
.sparkline.up .bar { background: var(--ks-success); }
.sparkline.down .bar { background: var(--ks-error); }

/* ===== Active Sessions Card ===== */
.stat-card.active-sessions {
  border-left: 3px solid var(--ks-success);
}
.stat-card.active-sessions .pulse-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--ks-success);
  border-radius: 50%;
  margin-right: 6px;
  animation: pulse 2s infinite;
}

/* ===== Confirm Dialog ===== */
.confirm-backdrop {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.35);
  backdrop-filter: blur(3px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}
.confirm-backdrop.active { display: flex; }
.confirm-dialog {
  background: var(--ks-bg);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  width: 420px;
  max-width: 90vw;
  box-shadow: var(--shadow-elevated);
  animation: modalIn 0.2s ease;
}
.confirm-dialog h3 {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ks-text);
}
.confirm-dialog p {
  margin: 0 0 24px;
  font-size: 14px;
  color: var(--ks-text-sec);
  line-height: 1.5;
}
.confirm-dialog .confirm-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* ===== Transition for all interactive elements ===== */
.btn, .badge, a, select, input, table tr, .stat-card, .modal, .toast {
  transition: all var(--transition-base);
}

/* ===== Stat Card Trend ===== */
.stat-card .stat-compare {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}
.stat-card .stat-compare .compare-value {
  font-size: 12px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 6px;
  border-radius: 4px;
}
.stat-card .stat-compare .compare-value.up { color: var(--ks-success); background: var(--ks-success-bg); }
.stat-card .stat-compare .compare-value.down { color: var(--ks-error); background: var(--ks-error-bg); }
.stat-card .stat-compare .compare-label {
  font-size: 11px;
  color: var(--ks-text-muted);
}

/* ===== Toggle Switch ===== */
.toggle-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.toggle-switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.toggle-slider {
  position: relative;
  width: 36px;
  height: 20px;
  background: #e5e7eb;
  border-radius: 10px;
  transition: all 0.2s;
  flex-shrink: 0;
}
.toggle-slider::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 2px;
  top: 2px;
  background: #fff;
  border-radius: 50%;
  transition: all 0.2s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}
.toggle-switch input:checked + .toggle-slider {
  background: var(--ks-success, #22c55e);
}
.toggle-switch input:checked + .toggle-slider::after {
  left: 18px;
}
.toggle-switch .toggle-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--ks-text-sec);
  user-select: none;
}

/* Красный для неактивного */
.toggle-switch.inactive input:not(:checked) + .toggle-slider {
  background: var(--ks-error, #ef4444);
}
.toggle-switch.inactive input:not(:checked) + .toggle-slider::after {
  left: 2px;
}