/**
 * Design System - Báo cáo Công việc Hiện trường
 * Dark Theme, Mobile-first, Glassmorphism
 */

/* ========== CSS Variables ========== */
:root {
  --bg-primary: #f8f9fa;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-hover: rgba(0, 0, 0, 0.05);
  --bg-input: #ffffff;

  --text-primary: #1f2937;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;

  --border-color: #e5e7eb;
  --border-focus: #f97316;

  --accent-primary: #f97316;
  --accent-primary-alpha: rgba(249, 115, 22, 0.15);
  --accent-success: #22c55e;
  --accent-success-alpha: rgba(34, 197, 94, 0.15);
  --accent-warning: #f59e0b;
  --accent-warning-alpha: rgba(245, 158, 11, 0.15);
  --accent-danger: #ef4444;
  --accent-danger-alpha: rgba(239, 68, 68, 0.15);
  --accent-info: #3b82f6;
  --accent-info-alpha: rgba(59, 130, 246, 0.15);

  --sidebar-width: 260px;
  --topbar-height: 64px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);

  --transition: 0.2s ease;
}

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

html { font-size: 16px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-primary); text-decoration: none; }
img { max-width: 100%; height: auto; }

/* ========== Sidebar ========== */
.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.sidebar-store-name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
}

.sidebar-store-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.sidebar-nav {
  flex: 1;
  padding: 12px;
  overflow-y: auto;
}

.nav-section-title {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 16px 12px 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--accent-primary-alpha);
  color: var(--accent-primary);
  font-weight: 500;
}

.nav-icon { font-size: 1.125rem; width: 24px; text-align: center; }

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-info { display: flex; align-items: center; gap: 10px; }

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #f97316, #fb923c);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  color: #fff;
}

.user-name { font-size: 0.8125rem; font-weight: 500; }
.user-role { font-size: 0.6875rem; color: var(--text-muted); }

.btn-logout {
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.btn-logout:hover { background: var(--accent-danger-alpha); }

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

/* ========== Main Content ========== */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ========== Top Bar ========== */
.topbar {
  height: var(--topbar-height);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-left { display: flex; align-items: center; gap: 16px; }
.topbar-right { display: flex; align-items: center; gap: 12px; }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-primary);
  padding: 4px;
}

.page-title { font-size: 1.125rem; font-weight: 600; }
.page-subtitle { font-size: 0.75rem; color: var(--text-muted); }

.alert-badge {
  background: var(--accent-warning-alpha);
  color: var(--accent-warning);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* ========== Page Content ========== */
.page-content {
  flex: 1;
  padding: 24px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.page-header h2 { font-size: 1.25rem; font-weight: 600; }

/* ========== Cards ========== */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  font-weight: 600;
  font-size: 0.9375rem;
}

.card-body { padding: 20px; }

/* ========== 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-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  flex-shrink: 0;
}

.stat-value {
  font-size: 1.375rem;
  font-weight: 700;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #f97316, #fb923c);
  color: #fff;
}

.btn-primary:hover {
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.4);
  transform: translateY(-1px);
}

.btn-success { background: var(--accent-success); color: #fff; }
.btn-warning { background: var(--accent-warning); color: #000; }
.btn-danger { background: var(--accent-danger); color: #fff; }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); }

.btn-sm { padding: 6px 12px; font-size: 0.8125rem; }
.btn-lg { padding: 14px 24px; font-size: 1rem; }

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

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

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

.form-row-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}

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

.form-required::after {
  content: ' *';
  color: var(--accent-danger);
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-family: inherit;
  color: var(--text-primary);
  transition: all var(--transition);
  outline: none;
}

.form-control:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-primary-alpha);
}

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

textarea.form-control { resize: vertical; min-height: 80px; }

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='rgba(255,255,255,0.4)' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

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

/* Checkbox & Radio */
.checkbox-group, .radio-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.checkbox-item, .radio-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  font-size: 0.875rem;
}

.checkbox-item:hover, .radio-item:hover { border-color: var(--accent-primary); }

.checkbox-item.active, .radio-item.active {
  background: var(--accent-primary-alpha);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* ========== Search / Toolbar ========== */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.search-box {
  position: relative;
  flex: 1;
  min-width: 200px;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.875rem;
}

.search-box .form-control { padding-left: 36px; }

/* ========== Tables ========== */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  font-size: 0.8125rem;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: rgba(255, 255, 255, 0.02);
}

.data-table tr:hover { background: var(--bg-hover); }
.data-table tr:last-child td { border-bottom: none; }

.table-empty {
  text-align: center !important;
  padding: 48px 16px !important;
  color: var(--text-muted);
}

.empty-icon { font-size: 2.5rem; margin-bottom: 12px; }

.text-right { text-align: right !important; }
.text-center { text-align: center !important; }
.fw-bold { font-weight: 600; }
.text-muted { color: var(--text-muted) !important; }
.text-danger { color: var(--accent-danger) !important; }
.text-success { color: var(--accent-success) !important; }
.money { font-variant-numeric: tabular-nums; }

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 200px;
}

/* Action Buttons */
.action-btns { display: flex; gap: 4px; }

.action-btn {
  background: none;
  border: none;
  padding: 6px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.875rem;
  transition: all var(--transition);
}

.action-btn:hover { background: var(--bg-hover); }
.action-btn.edit:hover { background: var(--accent-primary-alpha); }
.action-btn.delete:hover { background: var(--accent-danger-alpha); }
.action-btn.view:hover { background: var(--accent-info-alpha); }

/* ========== Badges ========== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.badge-primary { background: var(--accent-primary-alpha); color: var(--accent-primary); }
.badge-success { background: var(--accent-success-alpha); color: var(--accent-success); }
.badge-warning { background: var(--accent-warning-alpha); color: var(--accent-warning); }
.badge-danger { background: var(--accent-danger-alpha); color: var(--accent-danger); }
.badge-info { background: var(--accent-info-alpha); color: var(--accent-info); }
.badge-secondary { background: rgba(255,255,255,0.08); color: var(--text-secondary); }

/* ========== Modal ========== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.active { display: flex; }

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  animation: modalSlide 0.3s ease;
}

.modal-lg { max-width: 720px; }
.modal-xl { max-width: 960px; }

@keyframes modalSlide {
  from { opacity: 0; transform: translateY(-20px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}

.modal-title { font-size: 1.0625rem; font-weight: 600; }

.modal-close {
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  border-radius: 6px;
  transition: all var(--transition);
}

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

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 16px 24px;
  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: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  min-width: 280px;
  max-width: 400px;
  animation: toastIn 0.4s ease;
  font-size: 0.875rem;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(50px); }
  to { opacity: 1; transform: translateX(0); }
}

.toast-success { border-left: 3px solid var(--accent-success); }
.toast-error { border-left: 3px solid var(--accent-danger); }
.toast-warning { border-left: 3px solid var(--accent-warning); }
.toast-info { border-left: 3px solid var(--accent-info); }

.toast-icon { font-size: 1.125rem; }
.toast-message { flex: 1; }

.toast-close {
  background: none;
  border: none;
  font-size: 1.125rem;
  cursor: pointer;
  color: var(--text-muted);
  padding: 2px;
}

/* ========== Loading ========== */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 250;
}

.spinner,
.spinner-lg {
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner { width: 32px; height: 32px; }
.spinner-lg { width: 48px; height: 48px; }

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

/* ========== Pagination ========== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 16px;
  flex-wrap: wrap;
}

.pagination-btn {
  min-width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  font-family: inherit;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.pagination-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.pagination-btn.active { background: var(--accent-primary); color: #fff; border-color: var(--accent-primary); }
.pagination-btn:disabled { opacity: 0.3; cursor: not-allowed; }

.pagination-info { font-size: 0.75rem; color: var(--text-muted); margin-left: 8px; }

/* ========== Stepper Form ========== */
.stepper {
  display: flex;
  justify-content: space-between;
  margin-bottom: 32px;
  position: relative;
}

.stepper::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 40px;
  right: 40px;
  height: 2px;
  background: var(--border-color);
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: relative;
  z-index: 1;
  cursor: pointer;
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.step.active .step-number {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #fff;
  box-shadow: 0 0 0 4px var(--accent-primary-alpha);
}

.step.completed .step-number {
  background: var(--accent-success);
  border-color: var(--accent-success);
  color: #fff;
}

.step-label {
  font-size: 0.6875rem;
  color: var(--text-muted);
  text-align: center;
  max-width: 80px;
}

.step.active .step-label { color: var(--accent-primary); font-weight: 500; }
.step.completed .step-label { color: var(--accent-success); }

.step-content { display: none; }
.step-content.active { display: block; animation: fadeIn 0.3s ease; }

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

.step-actions {
  display: flex;
  justify-content: space-between;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

/* ========== Upload Area ========== */
.upload-area {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
}

.upload-area:hover {
  border-color: var(--accent-primary);
  background: var(--accent-primary-alpha);
}

.upload-area.dragover {
  border-color: var(--accent-primary);
  background: var(--accent-primary-alpha);
}

.upload-icon { font-size: 2.5rem; margin-bottom: 12px; }
.upload-text { color: var(--text-secondary); font-size: 0.875rem; }
.upload-hint { color: var(--text-muted); font-size: 0.75rem; margin-top: 4px; }

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.preview-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

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

.preview-remove {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 24px;
  height: 24px;
  background: rgba(239, 68, 68, 0.9);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 0.75rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ========== Utilities ========== */
.hidden { display: none !important; }
.mt-sm { margin-top: 8px; }
.mt-md { margin-top: 16px; }
.mt-lg { margin-top: 24px; }
.mb-sm { margin-bottom: 8px; }
.mb-md { margin-bottom: 16px; }
.mb-lg { margin-bottom: 24px; }
.gap-sm { gap: 8px; }
.gap-md { gap: 16px; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }

/* ========== Report Detail ========== */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.detail-item { margin-bottom: 12px; }

.detail-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.detail-value { font-size: 0.9375rem; }

.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}

.gallery-item {
  aspect-ratio: 4/3;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: transform var(--transition);
}

.gallery-item:hover { transform: scale(1.02); }

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ========== Chart ========== */
.chart-container {
  position: relative;
  height: 280px;
  padding: 16px;
}

/* ========== Rating Stars ========== */
.rating-group {
  display: flex;
  gap: 8px;
}

.rating-btn {
  padding: 10px 20px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.rating-btn:hover { border-color: var(--accent-primary); }

.rating-btn.active {
  background: var(--accent-primary-alpha);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* ========== KPI Cards ========== */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: transform var(--transition);
}

.kpi-card:hover { transform: translateY(-2px); }

.kpi-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.kpi-name { font-weight: 600; font-size: 0.9375rem; }

.kpi-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.kpi-stat-item {
  text-align: center;
  padding: 8px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
}

.kpi-stat-value { font-size: 1.125rem; font-weight: 700; }
.kpi-stat-label { font-size: 0.6875rem; color: var(--text-muted); margin-top: 2px; }

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open { transform: translateX(0); }
  .sidebar.open + .sidebar-overlay { display: block; }

  .main-content { margin-left: 0; }
  .menu-toggle { display: block; }

  .page-content { padding: 16px; }
  .topbar { padding: 0 16px; }

  .stats-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .stat-card { padding: 14px; }
  .stat-value { font-size: 1.125rem; }
  .stat-icon { width: 40px; height: 40px; font-size: 1.125rem; }

  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }

  .data-table th, .data-table td { padding: 10px 12px; font-size: 0.75rem; }

  .stepper { gap: 4px; }
  .step-label { font-size: 0.625rem; max-width: 60px; }
  .step-number { width: 32px; height: 32px; font-size: 0.75rem; }

  .modal { border-radius: var(--radius-lg); margin: 10px; }

  .kpi-grid { grid-template-columns: 1fr; }

  .preview-grid { grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .page-header { flex-direction: column; align-items: flex-start; }
}