:root {
  --color-bg-default: #f9fbfc;
  --color-bg-panel: rgba(255, 255, 255, 0.85);
  --color-bg-card: #ffffff;
  --color-fg-default: #111827;
  --color-fg-muted: #6b7280;
  --color-border-default: #e5e7eb;
  --color-primary: #000000;
  --color-primary-hover: #374151;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-btn-outline: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-glass: 0 4px 30px rgba(0, 0, 0, 0.1);
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-default);
  color: var(--color-fg-default);
  line-height: 1.5;
  font-size: 14px;
  padding: 20px;
  -webkit-font-smoothing: antialiased;
  height: 100vh;
  overflow: hidden;
}

.app-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background-color: rgba(255, 255, 255, 0.4);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-default);
  height: calc(100vh - 40px);
}

.main-content-wrapper {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

header {
  padding: 24px 32px;
  background-color: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border-default);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.title-area h1 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--color-fg-muted);
  font-size: 13px;
  margin-top: 4px;
}

.controls {
  display: flex;
  gap: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-secondary {
  background-color: transparent;
  border-color: var(--color-border-default);
  color: var(--color-fg-default);
}

.btn-secondary:hover {
  background-color: #f3f4f6;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
}

/* Search and Filters */
.search-bar-row {
  padding: 24px 32px 0 32px;
}

.search-bar-row .form-control {
  width: 100%;
  padding: 14px 20px;
  font-size: 16px;
  font-weight: 500;
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  background-color: var(--color-bg-card);
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.search-bar-row .form-control:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
  outline: none;
}

.filter-bar {
  padding: 16px 32px 24px 32px;
  border-bottom: 1px solid var(--color-border-default);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.form-select {
  padding: 8px 32px 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-fg-default);
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-sm);
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}

/* Table Area */
main {
  flex: 1;
  width: 100%;
  background: #fff;
  overflow-y: auto;
  position: relative;
}

.table-container {
  padding: 0 32px 32px 32px;
}

.markdown-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  min-width: 800px;
}

.markdown-table th {
  padding: 16px;
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--color-fg-muted);
  font-weight: 600;
  letter-spacing: 0.05em;
  border-bottom: 2px solid var(--color-border-default);
}

.markdown-table td {
  padding: 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--color-border-default);
  color: var(--color-fg-default);
  font-weight: 500;
}

.clickable-row {
  cursor: pointer;
  transition: all 0.2s ease;
}

.clickable-row:hover {
  background-color: #f8fafc;
  transform: scale(1.005);
  box-shadow: inset 2px 0 0 var(--color-accent);
}

.empty-state {
  padding: 48px;
  text-align: center;
  color: var(--color-fg-muted);
  font-size: 16px;
}

/* Shopping / Sidebar Panel & Overlay */
.panel-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.panel-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

.shopping-panel {
  position: fixed;
  top: 0;
  right: -450px;
  height: 100vh;
  width: 420px;
  background: var(--color-bg-panel);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  box-shadow: -8px 0 30px rgba(0, 0, 0, 0.1);
}

.shopping-panel.open {
  right: 0;
}

.shopping-header {
  padding: 24px;
  border-bottom: 1px solid var(--color-border-default);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-bg-card);
}

.shopping-header h2 {
  font-size: 16px;
  font-weight: 700;
  margin: 0;
}

.shopping-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-sm {
  padding: 6px 10px;
  font-size: 12px;
  border-radius: 6px;
}

.btn-icon {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--color-fg-muted);
}

.btn-icon:hover {
  color: var(--color-fg-default);
}

.shopping-content {
  padding: 24px;
  overflow-y: auto;
  flex-grow: 1;
}

.empty-shopping {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-fg-muted);
}

.icon-large {
  font-size: 48px;
  display: block;
  margin-bottom: 24px;
  filter: grayscale(1) opacity(0.5);
}

/* Vibe Cards */
.shopping-card {
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 16px;
  background-color: var(--color-bg-card);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.shopping-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: transparent;
  transform: translateY(-2px);
}

.shopping-provider {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 6px;
  letter-spacing: 0.05em;
}

.shopping-name {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}

.shopping-specs {
  font-size: 12px;
  color: var(--color-fg-muted);
  margin-bottom: 16px;
  line-height: 1.5;
}

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

.shopping-price {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-fg-default);
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.vat-badge {
  font-size: 9px;
  background-color: #f3f4f6;
  color: var(--color-fg-muted);
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
}

.best-price-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
  font-size: 10px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 12px;
  text-transform: uppercase;
}

.btn-buy {
  background-color: var(--color-accent);
  color: white;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.btn-buy:hover {
  background-color: var(--color-accent-hover);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

/* Cart Interface */
.cart-item {
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-bg-card);
}

.cart-item-details {
  flex-grow: 1;
  padding-right: 12px;
}

.cart-item-name {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 4px;
}

.cart-item-price {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

.cart-item-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  background: #f9fafb;
  padding: 4px;
  border-radius: 8px;
  border: 1px solid var(--color-border-default);
}

.qty-btn {
  background: white;
  border: 1px solid var(--color-border-default);
  width: 28px;
  height: 28px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: bold;
  color: var(--color-fg-default);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.qty-btn:hover {
  background: #f3f4f6;
}

.cart-total-section {
  padding: 24px;
  border-top: 1px solid var(--color-border-default);
  background: var(--color-bg-card);
  margin-top: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-default);
}

.cart-total-row {
  display: flex;
  justify-content: space-between;
  font-weight: 800;
  font-size: 20px;
  margin-bottom: 20px;
}

.btn-checkout {
  width: 100%;
  text-align: center;
  padding: 14px;
  font-size: 15px;
  border-radius: var(--radius-sm);
  background: #10b981;
  color: white;
}

.btn-checkout:hover {
  background: #059669;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

/* Floating Sidebar Toggle Button */
.floating-cart-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 64px;
  height: 64px;
  background-color: var(--color-primary);
  border: none;
  border-radius: 32px;
  color: white;
  font-size: 24px;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.floating-cart-btn:hover {
  transform: scale(1.05) translateY(-4px);
  background-color: var(--color-primary-hover);
}

.badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background-color: #ef4444;
  color: white;
  font-size: 12px;
  font-weight: 800;
  min-width: 24px;
  height: 24px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 3px #fff;
}

/* Nav Tabs */
.nav-tabs {
  display: flex;
  gap: 24px;
  margin-top: 24px;
}

.tab-btn {
  background: none;
  border: none;
  padding: 0 0 16px 0;
  border-bottom: 3px solid transparent;
  color: var(--color-fg-muted);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  top: 1px;
}

.tab-btn:hover {
  color: var(--color-fg-default);
}

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

/* Store View */
.store-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.store-item-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all 0.3s ease;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.store-item-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.store-item-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-accent);
  opacity: 0;
  transition: opacity 0.3s;
}

.store-item-card:hover::before {
  opacity: 1;
}

.store-item-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-fg-default);
}

.store-item-meta {
  font-size: 13px;
  color: var(--color-fg-muted);
}

.store-item-btn {
  margin-top: auto;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Mobile Responsive Magic */
@media (min-width: 1025px) {
  .mobile-only {
    display: none !important;
  }
}

@media (max-width: 1024px) {
  body {
    padding: 0;
    background-color: #f3f4f6;
  }

  .app-container {
    border-radius: 0;
    height: 100vh;
    border: none;
    box-shadow: none;
    display: flex;
    flex-direction: column;
  }

  header {
    padding: 20px 20px 0 20px;
    flex-shrink: 0;
  }

  .title-area h1 {
    font-size: 18px;
  }

  .search-bar-row {
    padding: 16px 20px 0 20px;
    flex-shrink: 0;
  }

  .filter-bar {
    padding: 12px 20px 16px 20px;
    flex-shrink: 0;
  }

  .table-container {
    padding: 0 16px 20px 16px;
    background: transparent;
  }

  main {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
  }

  /* Convert Table to Cards */
  .markdown-table {
    min-width: 100%;
    display: block;
    border: none;
    background: transparent;
  }

  .markdown-table thead {
    display: none;
  }

  .markdown-table tbody {
    display: block;
    width: 100%;
  }

  .markdown-table tr {
    display: flex;
    flex-direction: column;
    background: #fff;
    margin-bottom: 16px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 16px;
    border: 1px solid var(--color-border-default);
    position: relative;
    transition: transform 0.2s;
  }

  .markdown-table tr:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: #fff;
  }

  .markdown-table td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border: none;
    font-size: 14px;
  }

  .markdown-table td::before {
    content: attr(data-label);
    font-size: 11px;
    text-transform: uppercase;
    color: var(--color-fg-muted);
    font-weight: 700;
    width: 40%;
    text-align: left;
  }

  .markdown-table td:first-child {
    font-size: 18px;
    font-weight: 800;
    border-bottom: 1px solid var(--color-bg-default);
    margin-bottom: 8px;
    padding-bottom: 12px;
    color: var(--color-accent);
  }

  .markdown-table td:first-child::before {
    display: none;
  }

  /* Hide label for title */

  .shopping-panel {
    width: 100%;
    right: -100%;
  }
}

/* Header Utilities */
.mobile-hidden {
  display: inline-flex;
}

@media (max-width: 768px) {
  .mobile-hidden {
    display: none !important;
  }

  .shopping-panel {
    width: 100%;
  }
}

/* ==========================================
   PROVIDERS VIEW
   ========================================== */
.provider-filter-bar {
  margin-bottom: 24px;
  display: flex; gap: 12px; flex-wrap: wrap; align-items: center;
}
.provider-filter-bar label { font-size: 13px; font-weight: 600; color: var(--color-fg-muted); }

.providers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.provider-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
  position: relative; overflow: hidden;
}
.provider-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.provider-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--color-accent), #6366f1);
}
.provider-card-header {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-bottom: 12px;
}
.provider-name {
  font-size: 16px; font-weight: 800; color: var(--color-fg-default);
}
.provider-badge {
  font-size: 10px; font-weight: 700; padding: 3px 8px; border-radius: 20px;
  text-transform: uppercase; letter-spacing: 0.05em;
}
.provider-badge.pro {
  background: rgba(99, 102, 241, 0.1); color: #6366f1;
}
.provider-badge.maker {
  background: rgba(16, 185, 129, 0.1); color: #10b981;
}
.provider-badge.general {
  background: rgba(249, 115, 22, 0.1); color: #f97316;
}
.provider-shipping-info {
  font-size: 12px; color: var(--color-fg-muted);
  background: var(--color-bg-subtle);
  border-radius: 6px; padding: 8px 12px;
  margin-bottom: 12px;
  display: flex; gap: 16px; flex-wrap: wrap;
}
.provider-shipping-info span { display: flex; align-items: center; gap: 4px; }
.provider-materials-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  color: var(--color-fg-muted); letter-spacing: 0.05em; margin-bottom: 8px;
}
.provider-materials-chips {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.material-chip {
  font-size: 11px; background: var(--color-bg-subtle);
  border: 1px solid var(--color-border-default);
  border-radius: 12px; padding: 3px 10px; cursor: pointer;
  transition: all 0.2s;
}
.material-chip:hover {
  background: var(--color-accent); color: white; border-color: var(--color-accent);
}
.provider-card-footer {
  margin-top: 14px; padding-top: 14px;
  border-top: 1px solid var(--color-border-default);
  display: flex; justify-content: space-between; align-items: center;
}
.provider-vat-note { font-size: 11px; color: var(--color-fg-muted); }
.provider-link {
  font-size: 12px; font-weight: 600; color: var(--color-accent);
  text-decoration: none; display: flex; align-items: center; gap: 4px;
}
.provider-link:hover { text-decoration: underline; }

/* Inline product rows inside provider cards */
.provider-products-section { margin-top: 12px; }
.provider-product-row {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border-default);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 8px;
}
.provider-product-name {
  font-size: 13px; font-weight: 600;
  color: var(--color-fg-default); margin-bottom: 4px;
}
.provider-product-meta {
  display: flex; flex-wrap: wrap; gap: 10px;
  font-size: 11px; color: var(--color-fg-muted); margin-bottom: 6px;
}
.provider-product-meta strong { color: var(--color-accent); font-size: 13px; }