@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Modern HSL Color Palette */
  --h-primary: 228;
  --bg-primary: hsl(var(--h-primary), 20%, 6%);
  --bg-secondary: hsl(var(--h-primary), 24%, 10%);
  --bg-card: hsla(0, 0%, 100%, 0.03);
  --bg-card-hover: hsla(0, 0%, 100%, 0.06);

  --accent-h: 245;
  --accent: hsl(var(--accent-h), 80%, 65%);
  --accent-hover: hsl(var(--accent-h), 85%, 72%);
  --accent-glow: hsla(var(--accent-h), 80%, 65%, 0.2);

  --success: hsl(160, 84%, 45%);
  --success-bg: hsla(160, 84%, 45%, 0.1);
  --danger: hsl(0, 84%, 60%);
  --danger-bg: hsla(0, 84%, 60%, 0.1);
  --warning: hsl(45, 100%, 55%);
  --warning-bg: hsla(45, 100%, 55%, 0.1);
  --info: hsl(210, 100%, 60%);
  --info-bg: hsla(210, 100%, 60%, 0.1);

  --border: hsla(0, 0%, 100%, 0.08);
  --border-hover: hsla(0, 0%, 100%, 0.15);

  --text-primary: hsl(210, 40%, 98%);
  --text-secondary: hsl(215, 25%, 75%);
  --text-muted: hsl(215, 16%, 55%);

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --shadow-lg: 0 12px 48px 0 rgba(0, 0, 0, 0.5);

  --nav-width: 260px;
  --transition: cubic-bezier(0.4, 0, 0.2, 1) 0.3s;
}

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

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

/* ── SCROLLBAR ── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-hover);
  border-radius: 3px;
}

/* ── LAYOUT ── */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ── SIDEBAR NAV ── */
.sidebar {
  width: var(--nav-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: var(--transition);
}

.sidebar-logo {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo h2 {
  font-size: 15px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sidebar-logo p {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

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

.nav-section {
  padding: 8px 12px 4px;
}

.nav-section-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  margin: 2px 8px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  background: none;
  width: calc(100% - 16px);
}

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

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

.nav-item .nav-icon {
  font-size: 20px;
  width: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: var(--transition);
}

.nav-item:hover .nav-icon,
.nav-item.active .nav-icon {
  color: var(--accent-hover);
}

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

.user-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}

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

.user-card-name {
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-card-role {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: capitalize;
}

.btn-logout {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 16px;
  padding: 4px;
  transition: var(--transition);
}

.btn-logout:hover {
  color: var(--danger);
}

/* ── MAIN CONTENT ── */
.main-content {
  margin-left: var(--nav-width);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-header {
  padding: 24px 28px 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.page-title {
  font-size: 24px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 12px;
  line-height: 1;
}

.page-title i {
  font-size: 28px;
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 6px;
}

.sidebar-toggle {
  display: none !important;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 8px;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.sidebar-toggle:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
}

.sidebar-toggle i {
  font-size: 24px;
  display: block;
}

.sidebar-close {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 24px;
  cursor: pointer;
  padding: 4px;
  transition: var(--transition);
}

.sidebar-close:hover {
  color: var(--accent);
  transform: rotate(90deg);
}

.page-body {
  padding: 20px 28px 28px;
  flex: 1;
}

/* ── CARDS ── */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(800px circle at var(--x, 0) var(--y, 0), hsla(var(--accent-h), 80%, 65%, 0.06), transparent 40%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.card:hover::before {
  opacity: 1;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ── STAT CARDS ── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.stat-card {
  background: linear-gradient(135deg, hsla(0, 0%, 100%, 0.05), hsla(0, 0%, 100%, 0.01));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: var(--transition);
  position: relative;
}

.stat-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px -10px hsla(var(--accent-h), 80%, 65%, 0.3);
}

.stat-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.stat-value {
  font-size: 32px;
  font-weight: 800;
  margin: 8px 0 4px;
  letter-spacing: -1px;
}

.stat-sub {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.stat-icon {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 32px;
  opacity: 0.2;
  transition: var(--transition);
}

.stat-card:hover .stat-icon {
  opacity: 0.6;
  transform: scale(1.1);
  color: var(--accent);
}

.stat-card.up .stat-value {
  color: var(--danger);
}

.stat-card.down .stat-value {
  color: var(--success);
}

.stat-card.accent .stat-value {
  color: var(--accent);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
  outline: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 12px hsla(var(--accent-h), 80%, 65%, 0.25);
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px hsla(var(--accent-h), 80%, 65%, 0.4);
}

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

.btn-success:hover:not(:disabled) {
  background: hsl(160, 84%, 40%);
  transform: translateY(-1px);
}

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

.btn-danger:hover:not(:disabled) {
  background: hsl(0, 84%, 55%);
  transform: translateY(-1px);
}

.btn-warning {
  background: var(--warning);
  color: #000;
}

.btn-warning:hover:not(:disabled) {
  background: hsl(45, 100%, 50%);
  transform: translateY(-1px);
}

.btn-ghost {
  background: hsla(0, 0%, 100%, 0.05);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  background: hsla(0, 0%, 100%, 0.1);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.btn-lg {
  padding: 11px 22px;
  font-size: 14px;
}

.btn-icon {
  padding: 8px;
}

/* ── FORMS ── */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 9px 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 13px;
  transition: var(--transition);
  font-family: inherit;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

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

select.form-control option {
  background: var(--bg-secondary);
}

.form-control-sm {
  padding: 6px 10px;
  font-size: 12px;
}

/* ── TABLE ── */
.table-container {
  overflow-x: auto;
}

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

th,
td {
  padding: 11px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

th {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
  white-space: nowrap;
}

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

td {
  color: var(--text-primary);
  vertical-align: middle;
}

.td-num {
  font-variant-numeric: tabular-nums;
}

/* ── BADGES ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}

.badge-success {
  background: var(--success-bg);
  color: var(--success);
}

.badge-danger {
  background: var(--danger-bg);
  color: var(--danger);
}

.badge-warning {
  background: var(--warning-bg);
  color: var(--warning);
}

.badge-info {
  background: var(--info-bg);
  color: var(--info);
}

.badge-muted {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
}

/* ── PRICE CHANGE ── */
.price-up {
  color: var(--success);
  font-weight: 600;
}

.price-down {
  color: var(--danger);
  font-weight: 600;
}

.price-stable {
  color: var(--text-muted);
}

/* ── MODAL ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 500;
  align-items: center;
  justify-content: center;
}

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

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: 90%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.2s ease;
}

.modal-lg {
  max-width: 700px;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(-10px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

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

.modal-title {
  font-size: 16px;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 20px;
  line-height: 1;
  padding: 4px;
  transition: var(--transition);
}

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

.modal-footer {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
}

/* ── ALERTS / TOASTS ── */
#toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  min-width: 280px;
  max-width: 380px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow);
  border-left: 3px solid;
  animation: toastIn 0.3s ease;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(20px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.toast-success {
  background: var(--bg-secondary);
  border-color: var(--success);
  color: var(--text-primary);
}

.toast-error {
  background: var(--bg-secondary);
  border-color: var(--danger);
  color: var(--text-primary);
}

.toast-info {
  background: var(--bg-secondary);
  border-color: var(--info);
  color: var(--text-primary);
}

.toast-warning {
  background: var(--bg-secondary);
  border-color: var(--warning);
  color: var(--text-primary);
}

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

.login-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(167, 139, 250, 0.1) 0%, transparent 50%);
}

.login-box {
  position: relative;
  z-index: 1;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
}

.login-logo {
  text-align: center;
  margin-bottom: 28px;
}

.login-logo h1 {
  font-size: 20px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.login-logo p {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.login-divider {
  text-align: center;
  font-size: 11px;
  color: var(--text-muted);
  margin: 4px 0 20px;
}

/* ── UPLOAD ZONE ── */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.upload-zone-icon {
  font-size: 36px;
  margin-bottom: 10px;
}

.upload-zone-text {
  font-size: 14px;
  font-weight: 500;
}

.upload-zone-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ── LOADING ── */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

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

/* ── MISC ── */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gap-2 {
  gap: 8px;
}

.gap-3 {
  gap: 12px;
}

.mt-4 {
  margin-top: 16px;
}

.mt-6 {
  margin-top: 24px;
}

.mb-4 {
  margin-bottom: 16px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

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

.text-sm {
  font-size: 12px;
}

.text-right {
  text-align: right;
}

.fw-600 {
  font-weight: 600;
}

.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-muted);
}

.empty-state .icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.empty-state p {
  font-size: 14px;
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}

.page-nav-tabs {
  display: flex;
  gap: 4px;
  padding: 0 28px;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  background: none;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: var(--transition);
}

.tab-btn.active {
  color: var(--accent-hover);
  border-bottom-color: var(--accent);
}

.tab-btn:hover {
  color: var(--text-primary);
}

.price-input {
  width: 130px;
}

.price-input-filled {
  background-color: rgba(16, 185, 129, 0.1);
  border-color: var(--success);
  color: var(--success);
}

.price-input-filled:focus {
  box-shadow: 0 0 0 3px var(--success-glow);
  border-color: var(--success);
}

/* ── ITEM SELECTOR ── */
.item-selector-container {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 240px;
}

.item-selector-search {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
}

.item-selector-search i {
  color: var(--text-muted);
  font-size: 16px;
}

.item-selector-search input {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 14px;
  width: 100%;
  outline: none;
}

.item-selector-actions {
  padding: 4px 8px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 8px;
}

.item-selector-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
}

.item-checkbox-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  transition: var(--transition);
  cursor: pointer;
}

.item-checkbox-row:hover {
  background: var(--bg-card-hover);
}

.item-checkbox-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--accent);
}

.item-checkbox-row label {
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  flex: 1;
  user-select: none;
}

.item-checkbox-row input:checked+label {
  color: var(--text-primary);
  font-weight: 500;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {

  /* Global width protection */
  html,
  body {
    overflow-x: hidden;
    position: relative;
  }

  .app-layout {
    overflow-x: hidden;
    width: 100%;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1000;
    width: 280px;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 20px 0 50px rgba(0, 0, 0, 0.5);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-toggle {
    display: flex !important;
    align-items: center;
    justify-content: center;
  }

  .sidebar-close {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .main-content {
    margin-left: 0;
    width: 100%;
    overflow-x: hidden;
  }

  .page-header {
    padding: 12px 16px;
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 4px 8px;
  }

  /* Toggle button on mobile */
  .sidebar-toggle {
    display: flex !important;
    grid-row: 1;
    grid-column: 1;
    width: 36px;
    height: 36px;
    padding: 0;
  }

  /* Title container on mobile */
  .page-header > div:nth-child(2) {
    grid-row: 1;
    grid-column: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .page-title {
    font-size: 17px;
    line-height: 1.2;
    gap: 6px;
  }

  .page-title i {
    font-size: 20px;
  }

  .page-subtitle {
    display: none;
  }

  /* Controls/Buttons container on mobile (any child after title) */
  .page-header > *:nth-child(n+3) {
    grid-row: 2;
    grid-column: 1 / span 2;
    width: 100%;
    margin-top: 4px;
    display: flex;
  }

  /* Flex containers on mobile */
  .flex.gap-2 {
    flex-wrap: wrap;
    width: 100%;
    gap: 6px !important;
  }

  .flex.gap-2 > *, .page-header > .btn:nth-child(n+3) {
    flex: 1;
    min-width: 80px;
    width: 100% !important;
    height: 36px;
    font-size: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .page-body {
    padding: 16px;
    width: 100%;
    box-sizing: border-box;
  }

  .stat-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .card {
    padding: 16px;
    width: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
  }

  .grid-2 {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* Left-align headers on mobile */
  .login-logo, .login-divider { text-align: left; }
  .modal-header { justify-content: flex-start; gap: 16px; }
  .modal-footer { justify-content: flex-start; }

  /* Table protection */
  .table-container {
    margin: 0 -16px;
    width: calc(100% + 32px);
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  /* Overlay when sidebar open */
  body.sidebar-open::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 999;
  }
}