/* --- Design System --- */
:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #151d30;
  --bg-card: rgba(21, 29, 48, 0.7);
  --bg-card-solid: #151d30;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --accent-color: #0ea5e9; /* Sky Blue */
  --accent-hover: #0284c7;
  --accent-glow: rgba(14, 165, 233, 0.15);
  
  --success-color: #10b981; /* Emerald */
  --success-hover: #059669;
  --success-glow: rgba(16, 185, 129, 0.15);
  
  --danger-color: #ef4444; /* Red */
  --danger-hover: #dc2626;
  --danger-glow: rgba(239, 68, 68, 0.15);
  
  --warning-color: #f59e0b; /* Amber */
  --badge-bg: rgba(255, 255, 255, 0.05);
  
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.15);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.15);
  --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
  
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html,
body {
  max-width: 100%;
  overflow-x: hidden;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Background decorations */
body::before {
  content: '';
  position: fixed;
  top: -10%;
  right: -10%;
  width: 40vw;
  height: 40vw;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.08) 0%, rgba(0,0,0,0) 70%);
  z-index: -1;
  pointer-events: none;
}

body::after {
  content: '';
  position: fixed;
  bottom: -10%;
  left: -10%;
  width: 40vw;
  height: 40vw;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.05) 0%, rgba(0,0,0,0) 70%);
  z-index: -1;
  pointer-events: none;
}

/* --- Layout Container --- */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* --- Header --- */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2rem;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-icon {
  font-size: 1.75rem;
  background: linear-gradient(135deg, var(--accent-color), var(--success-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.header-logo h1 {
  font-size: 1.5rem;
  color: var(--text-primary);
  font-weight: 800;
}

.header-logo h1 span {
  background: linear-gradient(135deg, var(--accent-color), var(--success-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.875rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-color), #0284c7);
  color: #fff;
  box-shadow: 0 4px 14px 0 rgba(14, 165, 233, 0.4);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px 0 rgba(14, 165, 233, 0.6);
}

.btn-primary:disabled {
  background: #334155;
  color: var(--text-muted);
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background-color: var(--badge-bg);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: var(--border-hover);
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  border-radius: var(--radius-sm);
}

.btn-block {
  width: 100%;
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.btn-back:hover {
  color: var(--accent-color);
}

.btn-text-danger {
  background: none;
  border: none;
  color: var(--danger-color);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition);
}

.btn-text-danger:hover {
  color: #f87171;
}

/* --- Cards --- */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-glass);
}

.form-card {
  max-width: 550px;
  margin: 2rem auto;
}

.form-card h2 {
  margin-bottom: 1.5rem;
  font-size: 1.75rem;
}

/* --- Forms --- */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="password"],
textarea,
select {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
  resize: vertical;
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
input[type="password"]:focus,
textarea:focus,
select:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background-color: rgba(15, 23, 42, 0.9);
}

/* --- Views Management --- */
.view-section {
  display: none;
}

.view-section.active {
  display: block;
  animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- View 1: Events Grid (Home) --- */
.section-header {
  margin-bottom: 2rem;
}

.section-header h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.section-header p {
  color: var(--text-secondary);
}

.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: 1.5rem;
}

.event-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  cursor: pointer;
  transition: var(--transition);
}

.event-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.event-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.event-card-header h3 {
  font-size: 1.25rem;
  color: var(--text-primary);
}

.event-card-body {
  margin-bottom: 1.5rem;
}

.event-card-restaurant {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.event-card-date {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.event-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.badge-count {
  background-color: var(--badge-bg);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  color: var(--accent-color);
  font-weight: 600;
}

/* --- View 3: Event Details --- */
.event-detail-header {
  margin-bottom: 1.5rem;
  padding: 1.25rem 1.5rem;
}

.event-detail-header .btn-back {
  margin-bottom: 0.75rem;
}

.event-meta-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.event-meta-info h2 {
  font-size: 1.75rem;
}

.meta-badges {
  display: flex;
  gap: 0.75rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  background-color: var(--badge-bg);
  border: 1px solid var(--border-color);
}

.badge-restaurant {
  color: var(--accent-color);
  background-color: rgba(14, 165, 233, 0.08);
}

.badge-date {
  color: var(--warning-color);
  background-color: rgba(245, 158, 11, 0.08);
}

/* --- Tab Navigation --- */
.tab-navigation {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
  padding-bottom: 2px;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  padding: 0.75rem 1.25rem;
  cursor: pointer;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  position: relative;
  transition: var(--transition);
}

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

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

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-color), var(--success-color));
  border-radius: 2px;
}

/* --- Tab Panes --- */
.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
  animation: fadeIn 0.3s ease-out;
}

/* --- Tab: Order Layout --- */
.order-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 900px) {
  .order-layout {
    grid-template-columns: 1fr;
  }
}

.menu-selection-section h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  gap: 1rem;
}

#order-menu-list {
  position: relative;
  max-height: 60vh;
  overflow-y: auto;
  padding-right: 0.5rem;
  scroll-behavior: smooth;
}

.menu-item-card {
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  transition: var(--transition);
}

.menu-item-card:hover {
  background-color: rgba(255, 255, 255, 0.04);
  border-color: var(--border-hover);
}

.menu-item-info h4 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.menu-item-desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.menu-item-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}

.menu-item-price {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
}

/* --- Cart & Item controls --- */
.cart-section h3 {
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
}

.cart-items-container {
  min-height: 150px;
  max-height: 350px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  margin-bottom: 1.25rem;
  background-color: rgba(15, 23, 42, 0.3);
}

.cart-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: 150px;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.cart-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.625rem 0.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.cart-item-wrapper {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 0.5rem 0.25rem;
}

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

.cart-item-comment-input {
  width: 100%;
  background-color: rgba(15, 23, 42, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  outline: none;
  transition: var(--transition);
  margin-top: 0.375rem;
}

.cart-item-comment-input:focus {
  border-color: rgba(14, 165, 233, 0.5);
  background-color: rgba(15, 23, 42, 0.5);
  color: var(--text-primary);
}

.cart-item-name-box {
  flex-grow: 1;
  padding-right: 0.5rem;
}

.cart-item-name {
  font-weight: 500;
  font-size: 0.875rem;
}

.cart-item-price-desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.cart-item-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.qty-btn {
  background-color: var(--badge-bg);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: bold;
  font-size: 0.875rem;
  transition: var(--transition);
}

.qty-btn:hover {
  background-color: var(--border-color);
  color: var(--accent-color);
}

.cart-item-qty {
  font-weight: 600;
  font-size: 0.875rem;
  width: 20px;
  text-align: center;
}

.cart-item-total {
  font-weight: 600;
  font-size: 0.875rem;
  width: 65px;
  text-align: right;
}

.btn-remove-item {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  transition: var(--transition);
}

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

.cart-summary {
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.summary-row span:last-child {
  color: var(--success-color);
}

.saved-order-box {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background-color: var(--success-glow);
  border: 1px dashed var(--success-color);
  border-radius: var(--radius-md);
  animation: pulseSuccess 2s infinite alternate;
}

@keyframes pulseSuccess {
  from {
    box-shadow: 0 0 2px var(--success-color);
  }
  to {
    box-shadow: 0 0 8px var(--success-color);
  }
}

.saved-order-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--success-color);
}

/* --- Tab: Manage Menu Layout --- */
.manage-menu-layout {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 900px) {
  .manage-menu-layout {
    grid-template-columns: 1fr;
  }
}

.menu-form-section h3 {
  margin-bottom: 1.25rem;
}

.form-buttons {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.form-buttons .btn {
  flex: 1;
}

.menu-list-section h3 {
  margin-bottom: 1.25rem;
}

/* Tables styling */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.menu-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.menu-table th,
.menu-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.menu-table th {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
}

.menu-table td {
  font-size: 0.9rem;
}

.menu-table tr:hover td {
  background-color: rgba(255, 255, 255, 0.01);
}

.actions-col {
  text-align: right;
  width: 120px;
}

.action-btn-group {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

.action-btn {
  background-color: var(--badge-bg);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

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

.action-btn-edit:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background-color: var(--accent-glow);
}

.action-btn-delete:hover {
  border-color: var(--danger-color);
  color: var(--danger-color);
  background-color: var(--danger-glow);
}

/* --- Tab: Stats / Evaluation Layout --- */
.stats-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 900px) {
  .stats-layout {
    grid-template-columns: 1fr;
  }
}

.stats-card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.stats-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.stats-header h3 {
  margin-bottom: 0;
}

.stats-desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
}

.stats-box {
  background-color: rgba(15, 23, 42, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  min-height: 150px;
}

.collective-total-row {
  display: flex;
  justify-content: space-between;
  font-weight: 700;
  font-size: 1.15rem;
  margin-top: 1.25rem;
  border-top: 1px dashed var(--border-color);
  padding-top: 1rem;
  color: var(--success-color);
}

.collective-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.625rem 0.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.collective-item-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.collective-qty {
  background-color: var(--accent-glow);
  color: var(--accent-color);
  border: 1px solid rgba(14, 165, 233, 0.2);
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.85rem;
}

.collective-name {
  font-weight: 500;
}

.collective-price-sum {
  font-weight: 600;
  color: var(--text-secondary);
}

/* Individual bills */
.individual-bills-container {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.ind-bill-card {
  background-color: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.ind-bill-card:hover {
  background-color: rgba(255, 255, 255, 0.02);
  border-color: var(--border-hover);
}

.ind-bill-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.875rem 1rem;
  cursor: pointer;
  user-select: none;
}

.ind-bill-user-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.ind-bill-icon {
  color: var(--text-secondary);
  transition: var(--transition);
}

.ind-bill-card.open .ind-bill-icon {
  transform: rotate(90deg);
  color: var(--accent-color);
}

.ind-bill-username {
  font-weight: 600;
  color: var(--text-primary);
}

.ind-bill-total {
  background-color: var(--success-glow);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--success-color);
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.85rem;
}

.ind-bill-details {
  display: none;
  padding: 0 1rem 1rem 2.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.03);
  background-color: rgba(15, 23, 42, 0.15);
}

.ind-bill-card.open .ind-bill-details {
  display: block;
}

.ind-bill-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.825rem;
  color: var(--text-secondary);
  padding: 0.375rem 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.03);
}

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

/* --- Toast Notification --- */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  color: #fff;
  z-index: 1000;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transform: translateY(150%);
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-success {
  background: linear-gradient(135deg, var(--success-color), #059669);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.toast-error {
  background: linear-gradient(135deg, var(--danger-color), #b91c1c);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.toast-info {
  background: linear-gradient(135deg, var(--accent-color), #0369a1);
  border: 1px solid rgba(14, 165, 233, 0.2);
}

/* --- Footer --- */
.app-footer {
  text-align: center;
  padding: 2.5rem 0;
  border-top: 1px solid var(--border-color);
  margin-top: auto;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* --- Loader / Empty states --- */
.loading-spinner {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem 0;
  color: var(--text-secondary);
  font-weight: 500;
}

.no-data {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem;
  background-color: var(--bg-card);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
}

.no-data i {
  font-size: 2.5rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* Helper Utilities */
.hidden {
  display: none !important;
}

/* Scrollbar customization */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-sm);
}

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

/* Category Quick-Jump Tabs */
.category-tabs-container {
  display: flex;
  gap: 0.5rem;
  flex-wrap: nowrap;
  overflow-x: auto;
  margin-top: 0.75rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  scrollbar-width: none; /* Firefox */
}

.category-tabs-container::-webkit-scrollbar {
  display: none; /* Safari and Chrome */
}

.category-tab-btn {
  background-color: var(--badge-bg);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-xl);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.category-tab-btn:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.category-tab-btn.active {
  background: var(--accent-glow) !important;
  border-color: var(--accent-color) !important;
  color: var(--accent-color) !important;
}

.paid-toggle-btn {
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  padding: 4px;
  border-radius: 50%;
}

.paid-toggle-btn:hover {
  color: var(--success-color);
  background-color: var(--success-glow);
}

.paid-toggle-btn.paid {
  color: var(--success-color) !important;
}

.paid-toggle-btn.paid:hover {
  color: var(--danger-color) !important;
  background-color: var(--danger-glow);
}

/* --- Mobile View & Floating Cart CSS --- */
@media (max-width: 900px) {
  .cart-section {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.95)) !important;
    border-color: rgba(14, 165, 233, 0.35) !important;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5), 0 0 15px rgba(14, 165, 233, 0.2) !important;
  }
  
  .floating-cart-btn {
    display: flex !important;
  }
}

.floating-cart-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1000;
  display: none; /* Hidden on desktop */
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(135deg, var(--accent-color), #0284c7);
  color: #fff;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.4), var(--shadow-glass);
  transition: var(--transition);
  animation: slideUpIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.floating-cart-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(14, 165, 233, 0.6), var(--shadow-glass);
}

.badge-floating-count {
  background-color: #fff;
  color: var(--accent-color);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 800;
}

@keyframes slideUpIn {
  from {
    transform: translateY(100px) scale(0.8);
    opacity: 0;
  }
  to {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

@media (max-width: 480px) {
  .app-container {
    padding: 0 0.75rem;
  }
}