/* ============================================
   DESIGN SYSTEM - METRONIC STYLE
   Internal Management System Prototype
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Brand Colors */
  --primary: #3B82F6;
  --primary-light: #93C5FD;
  --primary-dark: #1D4ED8;
  --primary-bg: #EFF6FF;

  /* Semantic Colors */
  --success: #22C55E;
  --success-light: #86EFAC;
  --success-bg: #F0FDF4;
  --warning: #F59E0B;
  --warning-light: #FCD34D;
  --warning-bg: #FFFBEB;
  --danger: #EF4444;
  --danger-light: #FCA5A5;
  --danger-bg: #FEF2F2;
  --info: #06B6D4;
  --info-light: #67E8F9;
  --info-bg: #ECFEFF;

  /* Neutral */
  --bg-body: #F1F5F9;
  --bg-card: #FFFFFF;
  --bg-sidebar: #FFFFFF;
  --bg-header: #FFFFFF;
  --bg-hover: #F8FAFC;
  --bg-active: #EFF6FF;

  /* Text */
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --text-white: #FFFFFF;

  /* Border */
  --border-color: #E2E8F0;
  --border-light: #F1F5F9;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);

  /* Layout */
  --sidebar-width: 264px;
  --sidebar-collapsed: 78px;
  --header-height: 64px;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  height: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-body);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--primary-dark); }

img { max-width: 100%; height: auto; }

/* ---------- Typography ---------- */
h1, .h1 { font-size: 1.875rem; font-weight: 700; line-height: 1.2; }
h2, .h2 { font-size: 1.5rem; font-weight: 600; line-height: 1.25; }
h3, .h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.3; }
h4, .h4 { font-size: 1.125rem; font-weight: 600; line-height: 1.35; }
h5, .h5 { font-size: 1rem; font-weight: 600; line-height: 1.4; }
h6, .h6 { font-size: 0.875rem; font-weight: 600; line-height: 1.45; }

.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.8125rem; }
.text-base { font-size: 0.875rem; }
.text-lg { font-size: 1rem; }
.text-xl { font-size: 1.125rem; }

.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-primary-c { color: var(--primary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }

.fw-normal { font-weight: 400; }
.fw-medium { font-weight: 500; }
.fw-semibold { font-weight: 600; }
.fw-bold { font-weight: 700; }

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

.app-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left var(--transition-slow);
}

.app-content {
  flex: 1;
  padding: 24px;
  margin-top: var(--header-height);
}

.container-fluid {
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
}

/* ---------- Sidebar ---------- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: width var(--transition-slow), transform var(--transition-slow);
  overflow: hidden;
}

.sidebar-header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
}

.sidebar-logo svg {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.sidebar-toggle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-muted);
  flex-shrink: 0;
}
.sidebar-toggle:hover {
  background: var(--bg-body);
  color: var(--text-primary);
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 12px 0;
}

.sidebar-content::-webkit-scrollbar {
  width: 4px;
}
.sidebar-content::-webkit-scrollbar-track {
  background: transparent;
}
.sidebar-content::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

/* Sidebar Menu */
.sidebar-menu {
  list-style: none;
  padding: 0 12px;
}

.menu-heading {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 16px 12px 6px;
}

.menu-item {
  margin-bottom: 2px;
}

.menu-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  white-space: nowrap;
  overflow: hidden;
}

.menu-link:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.menu-link.active {
  background: var(--bg-active);
  color: var(--primary);
  font-weight: 600;
}

.menu-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.menu-link.active .menu-icon,
.menu-link:hover .menu-icon {
  color: var(--primary);
}

.menu-arrow {
  margin-left: auto;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
  color: var(--text-muted);
  flex-shrink: 0;
}

.menu-item.open > .menu-link .menu-arrow {
  transform: rotate(90deg);
}

/* Submenu */
.submenu {
  list-style: none;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
  padding-left: 16px;
  margin-left: 20px;
  border-left: 1px solid var(--border-color);
}

.menu-item.open > .submenu {
  max-height: 600px;
}

.submenu .menu-link {
  font-size: 0.8125rem;
  font-weight: 400;
  padding: 6px 12px;
  position: relative;
}

.submenu .menu-link::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--text-muted);
  position: absolute;
  left: -20px;
  top: 50%;
  transform: translateY(-50%);
  transition: all var(--transition-fast);
}

.submenu .menu-link.active::before,
.submenu .menu-link:hover::before {
  background: var(--primary);
  border-color: var(--primary);
}

.menu-badge {
  font-size: 0.6875rem;
  padding: 2px 6px;
  border-radius: 10px;
  font-weight: 600;
  margin-left: auto;
  flex-shrink: 0;
}

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0;
  right: 0;
  left: var(--sidebar-width);
  height: var(--header-height);
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 90;
  transition: left var(--transition-slow);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  align-items: center;
  justify-content: center;
}
.mobile-menu-toggle:hover {
  background: var(--bg-hover);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .separator { color: var(--border-color); }
.breadcrumb .current { color: var(--text-primary); font-weight: 500; }

.page-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Header Icons */
.header-icon-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-secondary);
  position: relative;
}
.header-icon-btn:hover {
  background: var(--bg-hover);
  border-color: var(--text-muted);
}

.notification-dot {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--danger);
  border: 2px solid var(--bg-card);
}

/* User Dropdown */
.user-dropdown {
  position: relative;
}

.user-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 8px 4px 4px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.user-btn:hover {
  background: var(--bg-hover);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.8125rem;
}

.user-info {
  text-align: left;
}
.user-name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.2;
}
.user-role {
  font-size: 0.6875rem;
  color: var(--text-muted);
  line-height: 1.2;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  z-index: 200;
  display: none;
  animation: dropdownFadeIn 0.15s ease;
}
.dropdown-menu.show { display: block; }

@keyframes dropdownFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.dropdown-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.dropdown-divider {
  height: 1px;
  background: var(--border-color);
  margin: 6px 0;
}

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
}

.card-body {
  padding: 20px;
}

.card-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
}

/* Stat Cards */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}
.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.stat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  margin-top: 12px;
}

.stat-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.stat-change {
  font-size: 0.75rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  margin-top: 8px;
}

/* ---------- Tables ---------- */
.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

thead th {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  padding: 10px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-body);
  white-space: nowrap;
}

tbody td {
  padding: 12px 16px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
  vertical-align: middle;
}

tbody tr:hover {
  background: var(--bg-hover);
}

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
  line-height: 1.4;
}

.btn-sm {
  padding: 5px 12px;
  font-size: 0.75rem;
}
.btn-lg {
  padding: 10px 24px;
  font-size: 0.9375rem;
}

.btn-primary {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: white;
}

.btn-outline {
  background: transparent;
  border-color: var(--border-color);
  color: var(--text-secondary);
}
.btn-outline:hover {
  background: var(--bg-hover);
  border-color: var(--text-muted);
  color: var(--text-primary);
}

.btn-success {
  background: var(--success);
  color: white;
}
.btn-success:hover {
  background: #16A34A;
  color: white;
}

.btn-danger {
  background: var(--danger);
  color: white;
}
.btn-danger:hover {
  background: #DC2626;
  color: white;
}

.btn-warning {
  background: var(--warning);
  color: white;
}

.btn-ghost {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 6px 10px;
}
.btn-ghost:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-md);
}

.btn-google {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-weight: 600;
  padding: 10px 24px;
}
.btn-google:hover {
  background: var(--bg-body);
  box-shadow: var(--shadow-md);
}

/* ---------- Forms ---------- */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.form-label .required {
  color: var(--danger);
  margin-left: 2px;
}

.form-control {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-card);
  transition: all var(--transition-fast);
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-control::placeholder {
  color: var(--text-muted);
}

textarea.form-control {
  min-height: 100px;
  resize: vertical;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 36px;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-error {
  font-size: 0.75rem;
  color: var(--danger);
  margin-top: 4px;
}

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

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 20px;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.badge-primary { background: var(--primary-bg); color: var(--primary); }
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-neutral {
  background: var(--bg-body);
  color: var(--text-secondary);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-right: 6px;
  flex-shrink: 0;
}

/* ---------- Pagination ---------- */
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
}

.page-link {
  min-width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.page-link:hover {
  background: var(--bg-hover);
  border-color: var(--text-muted);
}
.page-link.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* ---------- Tabs ---------- */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  gap: 0;
  overflow-x: auto;
}

.tab-item {
  padding: 10px 16px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.tab-item:hover {
  color: var(--text-primary);
}
.tab-item.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

/* ---------- Alerts ---------- */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
}

.alert-info { background: var(--info-bg); color: #0E7490; border: 1px solid #A5F3FC; }
.alert-warning { background: var(--warning-bg); color: #B45309; border: 1px solid #FDE68A; }
.alert-danger { background: var(--danger-bg); color: #B91C1C; border: 1px solid #FECACA; }
.alert-success { background: var(--success-bg); color: #15803D; border: 1px solid #BBF7D0; }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.15s ease;
}
.modal-backdrop.show { display: flex; }

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 90%;
  max-width: 520px;
  max-height: 85vh;
  overflow-y: auto;
  animation: modalSlideIn 0.2s ease;
}

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

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

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

.modal-close {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  border: none;
  background: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}
.modal-close:hover {
  background: var(--bg-body);
  color: var(--text-primary);
}

.modal-body { padding: 20px; }
.modal-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ---------- Toast ---------- */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 400;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  box-shadow: var(--shadow-lg);
  min-width: 300px;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastSlideIn 0.3s ease;
}

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

/* ---------- Search ---------- */
.search-input-wrapper {
  position: relative;
  max-width: 280px;
}
.search-input-wrapper svg {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 16px;
  height: 16px;
}
.search-input-wrapper .form-control {
  padding-left: 34px;
}

/* ---------- Filters ---------- */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

/* ---------- Empty State ---------- */
.empty-state {
  text-align: center;
  padding: 48px 24px;
}
.empty-state svg {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  color: var(--text-muted);
}
.empty-state h4 {
  margin-bottom: 8px;
  color: var(--text-primary);
}
.empty-state p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* ---------- Chart placeholder ---------- */
.chart-placeholder {
  background: linear-gradient(135deg, var(--bg-body), var(--bg-hover));
  border-radius: var(--radius-md);
  border: 1px dashed var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.8125rem;
  min-height: 250px;
}

/* ---------- User/Avatar ---------- */
.avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  flex-shrink: 0;
}
.avatar-sm { width: 32px; height: 32px; font-size: 0.75rem; }
.avatar-lg { width: 56px; height: 56px; font-size: 1.125rem; }
.avatar-xl { width: 80px; height: 80px; font-size: 1.5rem; }

.user-cell {
  display: flex;
  align-items: center;
  gap: 10px;
}
.user-cell-name {
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.8125rem;
}
.user-cell-email {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ---------- Satisfaction Bar ---------- */
.satisfaction-bar {
  display: flex;
  align-items: center;
  gap: 8px;
}
.satisfaction-track {
  flex: 1;
  height: 6px;
  background: var(--bg-body);
  border-radius: 3px;
  overflow: hidden;
}
.satisfaction-fill {
  height: 100%;
  border-radius: 3px;
  transition: width var(--transition-slow);
}

/* ---------- Timeline ---------- */
.timeline { list-style: none; }
.timeline-item {
  display: flex;
  gap: 16px;
  padding-bottom: 20px;
  position: relative;
}
.timeline-item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 15px;
  top: 36px;
  bottom: 0;
  width: 1px;
  background: var(--border-color);
}
.timeline-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.timeline-content {
  flex: 1;
}

/* ---------- Progress Steps ---------- */
.steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 32px;
}
.step {
  display: flex;
  align-items: center;
  gap: 8px;
}
.step-number {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8125rem;
  font-weight: 600;
  background: var(--bg-body);
  color: var(--text-muted);
  border: 2px solid var(--border-color);
}
.step.active .step-number {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}
.step.completed .step-number {
  background: var(--success);
  color: white;
  border-color: var(--success);
}
.step-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
}
.step.active .step-label { color: var(--primary); }
.step.completed .step-label { color: var(--success); }
.step-connector {
  width: 60px;
  height: 2px;
  background: var(--border-color);
  margin: 0 12px;
}
.step.completed + .step-connector,
.step.completed ~ .step-connector {
  background: var(--success);
}

/* ---------- Grid ---------- */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Utility ---------- */
.d-flex { display: flex; }
.align-items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-5 { gap: 20px; }
.mb-0 { margin-bottom: 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-4 { margin-top: 16px; }
.mt-5 { margin-top: 20px; }
.mt-6 { margin-top: 24px; }
.p-0 { padding: 0; }
.w-100 { width: 100%; }
.text-end { text-align: right; }
.text-center { text-align: center; }
.flex-1 { flex: 1; }

/* Overlay for mobile */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
  display: none;
}
.sidebar-overlay.show { display: block; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    z-index: 101;
  }
  .sidebar.open {
    transform: translateX(0);
  }

  .app-main {
    margin-left: 0;
  }

  .header {
    left: 0;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .app-content {
    padding: 16px;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .card-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .steps {
    flex-direction: column;
    gap: 8px;
  }
  .step-connector {
    width: 2px;
    height: 24px;
    margin: 0;
  }

  .user-btn .user-info {
    display: none;
  }

  .breadcrumb {
    display: none;
  }

  .header-right {
    gap: 6px;
  }
}

@media (max-width: 480px) {
  .page-title {
    font-size: 1rem;
  }

  .stat-value {
    font-size: 1.375rem;
  }
}

/* ---------- Print ---------- */
@media print {
  .sidebar, .header, .sidebar-overlay { display: none !important; }
  .app-main { margin-left: 0 !important; }
  .app-content { margin-top: 0 !important; padding: 0 !important; }
}