:root {
  --color-primary: #1E40AF;
  --color-on-primary: #FFFFFF;
  --color-secondary: #3B82F6;
  --color-accent: #D97706;
  --color-background: #030712;
  --color-surface: rgba(15, 23, 42, 0.6);
  --color-foreground: #F8FAFC;
  --color-muted: #64748B;
  --color-border: #1E293B;
  --color-success: #10B981;
  --color-danger: #EF4444;
  --color-warning: #F59E0B;
  
  --font-mono: 'Fira Code', monospace;
  --font-sans: 'Fira Sans', sans-serif;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-background);
  color: var(--color-foreground);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.app-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

/* TOP BAR */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--color-surface);
  backdrop-filter: blur(16px);
  padding: 16px 24px;
  border-radius: 16px;
  border: 1px solid var(--color-border);
  margin-bottom: 24px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

.logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-container {
  flex-grow: 1;
  max-width: 600px;
  position: relative;
}

#search-input {
  width: 100%;
  padding: 12px 16px;
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  color: var(--color-foreground);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

#search-input:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.2);
}

.user-actions button {
  background: transparent;
  color: var(--color-foreground);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 8px 16px;
  cursor: pointer;
  font-family: var(--font-sans);
  font-weight: 500;
  transition: all 0.2s;
}

.user-actions button:hover {
  background: var(--color-border);
}

/* FILTERS BAR */
.filters-bar {
  display: flex;
  justify-content: flex-end;
  gap: 16px;
  margin-bottom: 24px;
}

select {
  background: var(--color-surface);
  color: var(--color-foreground);
  border: 1px solid var(--color-border);
  padding: 10px 16px;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  cursor: pointer;
  outline: none;
  appearance: none;
}

select:focus {
  border-color: var(--color-secondary);
}

/* CONTENT & TABLE */
.content {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 24px;
  backdrop-filter: blur(16px);
}

.results-stats {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
}

.list-header {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 1.5fr;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-muted);
  text-transform: uppercase;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 8px;
}

.product-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 1.5fr;
  align-items: center;
  padding: 16px;
  border-bottom: 1px solid rgba(30, 41, 59, 0.5);
  transition: background 0.2s;
}

.product-row:hover {
  background: rgba(30, 41, 59, 0.8);
}

.product-info {
  display: flex;
  align-items: center;
  gap: 16px;
  overflow: hidden;
}

.product-image {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  object-fit: contain;
  background: #FFF;
  padding: 4px;
}

.product-title {
  font-weight: 500;
  font-size: 0.95rem;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 250px;
}

.product-sku {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
}

/* BADGES */
.badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(255,255,255,0.1);
  color: #CCC;
}
.badge.payngo { background: rgba(59, 130, 246, 0.2); color: #60A5FA; }
.badge.alm { background: rgba(239, 68, 68, 0.2); color: #F87171; }
.badge.soferavi { background: rgba(16, 185, 129, 0.2); color: #34D399; }
.badge.shekemelectric { background: rgba(245, 158, 11, 0.2); color: #FBBF24; }

/* PRICE */
.price-col {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.price-trend {
  font-size: 0.8rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.price-trend.down { color: var(--color-success); }
.price-trend.up { color: var(--color-danger); }
.price-trend.same { color: var(--color-muted); }

/* ACTION BUTTONS */
.action-buttons {
  display: flex;
  gap: 8px;
}

.action-buttons button {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-foreground);
  padding: 6px 12px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.action-buttons .btn-chart {
  border-color: var(--color-secondary);
  color: #60A5FA;
}
.action-buttons .btn-chart:hover {
  background: rgba(59, 130, 246, 0.1);
}

.action-buttons .btn-compare {
  border-color: var(--color-accent);
  color: #FBBF24;
}
.action-buttons .btn-compare:hover {
  background: rgba(245, 158, 11, 0.1);
}

.action-buttons .btn-ignore:hover {
  border-color: var(--color-danger);
  color: var(--color-danger);
}

/* COPY BTN */
.copy-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  opacity: 0.5;
}
.copy-btn:hover { opacity: 1; }

/* MODALS */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  justify-content: center;
  align-items: center;
}

.modal-overlay.hidden {
  display: none;
}

.modal-panel {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  width: 90vw;
  max-width: 800px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
}

.modal-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
}

.close-btn {
  background: transparent;
  border: none;
  color: var(--color-muted);
  font-size: 1.5rem;
  cursor: pointer;
}
.close-btn:hover { color: var(--color-foreground); }

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

/* COMPARE CARD */
.compare-hero, .compare-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.compare-card { text-decoration: none; color: inherit; }
.compare-card:hover { border-color: var(--color-secondary); }

.compare-divider {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-muted);
  margin: 24px 0 12px;
}

.savings-tag.cheaper { color: var(--color-success); font-weight: bold; font-family: var(--font-mono); font-size: 0.85rem; }
.savings-tag.expensive { color: var(--color-danger); font-family: var(--font-mono); font-size: 0.85rem; }
.savings-tag.same { color: var(--color-muted); font-family: var(--font-mono); font-size: 0.85rem; }

/* 📱 MOBILE SUPPORT (Standard Phones: 600px and below) 📱 */
@media (max-width: 600px) {
  .app-container {
    padding: 12px;
  }

  .top-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 16px;
  }

  .logo {
    justify-content: center;
    margin-bottom: 8px;
  }

  .search-container {
    max-width: 100%;
  }

  .user-actions {
    display: flex;
    justify-content: center;
  }

  .user-actions button {
    width: 100%;
    min-height: 44px; /* Touch target minimum */
  }

  .filters-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  
  .filters-bar select {
    width: 100%;
    min-height: 44px; /* Touch target minimum */
  }

  .content {
    padding: 12px;
  }

  .list-header {
    display: none; /* Hide standard table headers */
  }

  /* Transform Grid Row into Stacked Card */
  .product-row {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    background: rgba(30, 41, 59, 0.4);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
    gap: 12px;
    border: 1px solid var(--color-border);
  }

  .product-info {
    align-items: flex-start;
  }

  .product-title {
    white-space: normal; /* Allow title to wrap on mobile */
    max-width: 100%;
    font-size: 1rem;
  }
  
  .retailer-col {
    display: flex;
    justify-content: flex-start;
  }

  .price-col {
    width: 100%;
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 12px;
    margin-top: 4px;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
  }
  
  .price-trend {
    width: 100%;
    margin-bottom: 8px;
  }

  /* Force Action Buttons to Bottom */
  .action-buttons {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: 8px;
    margin-top: 8px;
  }

  .action-buttons button {
    min-height: 44px; /* Critical mobile touch target size */
    font-size: 0.85rem;
    padding: 10px;
  }
}

/* SYSTEM LOGS MODAL */
.log-row {
  display: grid;
  grid-template-columns: 80px 120px 1fr 2fr 100px;
  gap: 16px;
  align-items: center;
  padding: 12px;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.log-row:hover {
  background: rgba(255, 255, 255, 0.02);
}

.log-status {
  text-transform: uppercase;
  font-weight: 700;
  font-size: 0.75rem;
}

.log-status.success { color: var(--color-success); }
.log-status.failed { color: var(--color-danger); }

.log-time {
  text-align: right;
  color: var(--color-muted);
}

@media (max-width: 600px) {
  .log-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 16px 12px;
  }
  .log-row > div {
    width: 100%;
    text-align: left !important;
  }
  .log-status { width: auto !important; display: inline-block; }
  .log-time { text-align: left; opacity: 0.7; }
}

/* --- GROUPING TOGGLE --- */
#group-toggle:checked + .toggle-slider {
  background: var(--color-secondary) !important;
}
#group-toggle:checked + .toggle-slider .toggle-knob {
  transform: translateX(16px) !important;
}

/* --- VARIANT BADGE & MODAL --- */
.btn-variants {
  background: rgba(139, 92, 246, 0.15) !important;
  color: #a78bfa !important;
  border-color: rgba(139, 92, 246, 0.3) !important;
}
.btn-variants:hover {
  background: rgba(139, 92, 246, 0.3) !important;
  border-color: rgba(139, 92, 246, 0.5) !important;
}

.variant-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 16px;
  border-radius: 8px;
  transition: background 0.15s;
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  margin-bottom: 4px;
}
.variant-row:hover {
  background: rgba(255, 255, 255, 0.05);
}
.variant-img {
  width: 40px; height: 40px;
  object-fit: contain;
  border-radius: 6px;
  background: white;
  padding: 2px;
}
.variant-info {
  flex-grow: 1;
  overflow: hidden;
}
.variant-name {
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.variant-price {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.9rem;
}