/* ============ ONEF Admin - Dark Navy Theme ============ */
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css');

:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-card: #1e293b;
  --bg-hover: #334155;
  --bg-input: #0f172a;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-light: rgba(59, 130, 246, 0.15);
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;
  --border: #334155;
  --border-light: #1e293b;
  --radius: 0.75rem;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

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

body {
  font-family: 'Pretendard Variable', -apple-system, system-ui, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

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

.sidebar {
  width: 260px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 50;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease;
}

.sidebar-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sidebar-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.sidebar-badge {
  font-size: 0.625rem;
  background: var(--accent-light);
  color: var(--accent);
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  font-weight: 600;
}

.sidebar-nav {
  flex: 1;
  padding: 1rem 0.75rem;
  overflow-y: auto;
}

.nav-label {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.5rem 0.75rem;
  margin-top: 0.5rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.75rem;
  border-radius: 0.5rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.15s ease;
  margin-bottom: 0.125rem;
}

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

.nav-item.active {
  background: var(--accent-light);
  color: var(--accent);
}

.nav-item svg {
  width: 1.125rem;
  height: 1.125rem;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
}

.sidebar-footer-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.8125rem;
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  padding: 0.5rem 0;
  transition: color 0.15s;
}

.sidebar-footer-btn:hover {
  color: var(--error);
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: 260px;
  min-height: 100vh;
}

.top-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 0.875rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 40;
}

.top-header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.page-title {
  font-size: 1.125rem;
  font-weight: 700;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem;
}

.top-header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  border: none;
}

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

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

.content-area {
  padding: 1.5rem;
  overflow-x: hidden;
}

/* ============ Cards ============ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: 0.9375rem;
  font-weight: 600;
}

.card-body {
  padding: 1.25rem;
}

/* Stat Cards */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.stat-card-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
}

.stat-card-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.stat-card-value {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.2;
}

.stat-card-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* ============ Tables ============ */
.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-primary);
  white-space: nowrap;
}

td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.875rem;
  vertical-align: middle;
}

tr:hover td {
  background: rgba(255,255,255,0.02);
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  border: none;
  text-decoration: none;
  white-space: nowrap;
}

.btn svg { width: 1rem; height: 1rem; }

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

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

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

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--error);
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.25); }

.btn-success {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
}

.btn-sm { padding: 0.375rem 0.625rem; font-size: 0.75rem; }
.btn-lg { padding: 0.625rem 1.5rem; font-size: 0.9375rem; }

/* ============ Forms ============ */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.375rem;
}

.form-label .required {
  color: var(--error);
  margin-left: 0.125rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  color: var(--text-primary);
  font-size: 0.875rem;
  font-family: inherit;
  transition: border-color 0.15s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

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

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

/* ============ Badges ============ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  font-size: 0.6875rem;
  font-weight: 600;
  white-space: nowrap;
}

.badge-blue { background: rgba(59,130,246,0.15); color: #60a5fa; }
.badge-green { background: rgba(34,197,94,0.15); color: #4ade80; }
.badge-yellow { background: rgba(245,158,11,0.15); color: #fbbf24; }
.badge-red { background: rgba(239,68,68,0.15); color: #f87171; }
.badge-gray { background: rgba(100,116,139,0.15); color: #94a3b8; }
.badge-purple { background: rgba(168,85,247,0.15); color: #c084fc; }

/* ============ Toggle ============ */
.toggle {
  position: relative;
  width: 2.5rem;
  height: 1.375rem;
  background: var(--bg-tertiary);
  border-radius: 9999px;
  cursor: pointer;
  transition: background 0.2s;
  border: none;
  flex-shrink: 0;
}

.toggle.active {
  background: var(--accent);
}

.toggle::after {
  content: '';
  position: absolute;
  top: 0.125rem;
  left: 0.125rem;
  width: 1.125rem;
  height: 1.125rem;
  background: white;
  border-radius: 50%;
  transition: transform 0.2s;
}

.toggle.active::after {
  transform: translateX(1.125rem);
}

/* ============ Modal ============ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s;
}

.modal-overlay.show {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95);
  transition: transform 0.2s;
}

.modal-overlay.show .modal {
  transform: scale(1);
}

.modal-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  display: flex;
  transition: color 0.15s;
}

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

.modal-body {
  padding: 1.25rem;
}

.modal-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

/* ============ Tabs & Filters ============ */
.tab-group {
  display: flex;
  gap: 0.25rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.25rem;
  overflow-x: auto;
}

.tab-item {
  padding: 0.375rem 0.75rem;
  border-radius: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  border: none;
  background: none;
}

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

.tab-item.active {
  background: var(--accent);
  color: white;
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.search-input {
  position: relative;
}

.search-input input {
  padding-left: 2.25rem;
  min-width: 240px;
  box-sizing: border-box;
}

.search-input svg {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1rem;
  height: 1rem;
  color: var(--text-muted);
}

/* ============ Pagination ============ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--border);
}

.pagination-info {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.pagination-btns {
  display: flex;
  gap: 0.25rem;
}

.page-btn {
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.375rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  cursor: pointer;
  border: none;
  background: none;
  transition: all 0.15s;
}

.page-btn:hover { background: var(--bg-hover); }
.page-btn.active { background: var(--accent); color: white; }
.page-btn:disabled { opacity: 0.3; cursor: not-allowed; }

/* ============ Empty State ============ */
.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
}

.empty-state svg {
  width: 3rem;
  height: 3rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.empty-state p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* ============ Toast ============ */
.toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  font-size: 0.8125rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow);
  animation: toastIn 0.3s ease;
  min-width: 280px;
}

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

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

/* ============ Loading ============ */
.spinner {
  display: inline-block;
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  border-radius: var(--radius);
}

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

/* ============ Login Page ============ */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.login-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.login-subtitle {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 2rem;
}

.login-error {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.2);
  color: var(--error);
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.8125rem;
  margin-bottom: 1rem;
  display: none;
}

/* ============ Thumbnail ============ */
.thumb {
  width: 40px;
  height: 40px;
  border-radius: 0.375rem;
  object-fit: cover;
  background: var(--bg-tertiary);
}

.thumb-lg {
  width: 80px;
  height: 80px;
}

/* ============ Grid Cards (Popups) ============ */
.popup-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.popup-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.15s;
}

.popup-card:hover {
  border-color: var(--accent);
}

.popup-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--bg-tertiary);
}

.popup-card-body {
  padding: 1rem;
}

.popup-card-title {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.popup-card-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.popup-card-actions {
  display: flex;
  gap: 0.5rem;
}

/* ============ Image Upload ============ */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.15s;
}

.upload-zone:hover {
  border-color: var(--accent);
  background: var(--accent-light);
}

.upload-zone svg {
  width: 2rem;
  height: 2rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.upload-zone p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.upload-preview {
  position: relative;
  display: inline-block;
}

.upload-preview img {
  max-width: 200px;
  max-height: 200px;
  border-radius: 0.5rem;
  object-fit: contain;
  background: var(--bg-tertiary);
}

.upload-preview-remove {
  position: absolute;
  top: -0.5rem;
  right: -0.5rem;
  width: 1.5rem;
  height: 1.5rem;
  background: var(--error);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

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

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main-content {
    margin-left: 0;
  }
  .mobile-menu-btn {
    display: block;
  }
  .stat-grid {
    grid-template-columns: 1fr 1fr;
  }
  .content-area {
    padding: 1rem;
  }
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .search-input {
    width: 100%;
  }
  .search-input input {
    min-width: 0;
    width: 100%;
  }
}

/* ============ Leads Mobile ============ */
.leads-mobile-only {
  display: none;
  overflow: hidden;
}

.lead-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem;
  margin-bottom: 0.5rem;
  cursor: pointer;
  transition: border-color 0.15s;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.lead-card:active {
  border-color: var(--accent);
}

.lead-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.lead-card-name {
  font-weight: 600;
  font-size: 0.875rem;
}

.lead-card-status {
  width: auto;
  padding: 0.125rem 0.375rem;
  font-size: 0.6875rem;
  flex-shrink: 0;
}

.lead-card-mid {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lead-card-dot {
  margin: 0 0.25rem;
  color: var(--text-muted);
}

.lead-card-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.6875rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .leads-desktop-only {
    display: none;
  }
  .leads-mobile-only {
    display: block;
  }
}

/* ============ Products Mobile ============ */
.prod-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.prod-mobile-only {
  display: none;
  overflow: hidden;
}

.prod-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem;
  margin-bottom: 0.5rem;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.prod-card-row {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.625rem;
}

.prod-card-thumb {
  width: 48px;
  height: 48px;
  border-radius: 0.375rem;
  object-fit: cover;
  background: var(--bg-tertiary);
  flex-shrink: 0;
}

.prod-card-info {
  flex: 1;
  min-width: 0;
}

.prod-card-model {
  font-weight: 600;
  font-size: 0.875rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.prod-card-name {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.25rem;
}

.prod-card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.prod-card-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}

.prod-card-toggles {
  display: flex;
  gap: 0.75rem;
}

.prod-toggle-label {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.6875rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .prod-desktop-only {
    display: none;
  }
  .prod-mobile-only {
    display: block;
  }
  .prod-top-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .prod-tab-scroll {
    flex-wrap: wrap;
  }
  .prod-top-bar .flex {
    justify-content: flex-end;
  }
  .prod-btn-label {
    display: none;
  }
}

/* ============ Dashboard Grid ============ */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.dash-mobile-only {
  display: none;
}

.dash-item {
  padding: 0.625rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

.dash-item:last-child {
  border-bottom: none;
}

.dash-item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
  font-size: 0.8125rem;
}

.dash-item-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  .dash-desktop-only {
    display: none;
  }
  .dash-mobile-only {
    display: block;
  }
}

@media (max-width: 480px) {
  .stat-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
  }
  .stat-card {
    padding: 0.75rem;
  }
  .stat-card-icon {
    width: 1.75rem;
    height: 1.75rem;
    margin-bottom: 0.5rem;
  }
  .stat-card-icon svg {
    width: 0.875rem;
    height: 0.875rem;
  }
  .stat-card-value {
    font-size: 1.25rem;
  }
  .stat-card-label {
    font-size: 0.6875rem;
  }
  .card-header {
    padding: 0.75rem 1rem;
  }
  .card-body {
    padding: 0.75rem;
  }
  .content-area {
    padding: 0.75rem;
  }
}

/* ============ Mobile Bottom Nav ============ */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 0.25rem 0;
  padding-bottom: env(safe-area-inset-bottom, 0);
  overflow: hidden;
}

.mobile-bottom-nav-inner {
  display: flex;
  justify-content: space-around;
  align-items: center;
  overflow: hidden;
}

.mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  padding: 0.25rem 0.25rem;
  border-radius: 0.5rem;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.5625rem;
  font-weight: 500;
  transition: color 0.15s;
  min-width: 0;
  flex: 1;
}

.mobile-nav-item svg {
  width: 20px;
  height: 20px;
}

.mobile-nav-item.active {
  color: var(--accent);
}

.mobile-nav-item:active {
  color: var(--accent);
  background: rgba(59, 130, 246, 0.08);
}

@media (max-width: 768px) {
  .mobile-bottom-nav {
    display: block;
  }
  .content-area {
    padding-bottom: 4.5rem;
  }
  .mobile-menu-btn {
    display: none;
  }
  .top-header-left .page-title {
    font-size: 1rem;
  }
}

/* ============ Period Buttons ============ */
.period-btn {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.period-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* ============ Utilities ============ */
.text-right { text-align: right; }
.text-center { text-align: center; }
.flex { display: flex; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-sm { gap: 0.5rem; }
.gap-md { gap: 0.75rem; }
.mt-md { margin-top: 1rem; }
.mb-md { margin-bottom: 1rem; }
.hidden { display: none !important; }