/* ===== SPARE PARTS & PRICE ANALYSIS — Phase 3 ===== */
/* Chhapola Agriculture — Mobile-First Green Theme */

:root {
  --sp-primary: #176b35;
  --sp-primary-light: #dcfce7;
  --sp-primary-dark: #14532d;
  --sp-success: #16a34a;
  --sp-warning: #f59e0b;
  --sp-danger: #dc2626;
  --sp-info: #0284c7;
  --sp-bg: #f0fdf4;
  --sp-card: #ffffff;
  --sp-text: #1f2937;
  --sp-text-light: #6b7280;
  --sp-border: #e5e7eb;
  --sp-shadow: 0 2px 8px rgba(0,0,0,0.08);
  --sp-radius: 14px;
  --sp-radius-sm: 10px;
}

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

.sp-body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--sp-bg);
  color: var(--sp-text);
  min-height: 100vh;
  -webkit-tap-highlight-color: transparent;
  -webkit-font-smoothing: antialiased;
}

/* Auth Gate */
.sp-auth-gate {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 32px 20px;
  text-align: center;
  background: var(--sp-bg);
}
.sp-auth-gate h2 { font-size: 22px; margin: 12px 0 8px; color: var(--sp-text); }
.sp-auth-gate p { font-size: 14px; color: var(--sp-text-light); margin-bottom: 20px; }
.sp-auth-gate a {
  display: inline-block;
  background: var(--sp-primary);
  color: white;
  padding: 12px 28px;
  border-radius: var(--sp-radius-sm);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: background 0.2s;
}
.sp-auth-gate a:hover { background: var(--sp-primary-dark); }

/* Loading */
.sp-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  font-size: 16px;
  color: var(--sp-text-light);
}
.sp-loading::after {
  content: '';
  width: 32px;
  height: 32px;
  margin-left: 12px;
  border: 3px solid var(--sp-border);
  border-top-color: var(--sp-primary);
  border-radius: 50%;
  animation: sp-spin 0.8s linear infinite;
}
@keyframes sp-spin { to { transform: rotate(360deg); } }

/* Header */
.sp-header {
  background: var(--sp-primary);
  color: white;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.sp-header-back {
  background: rgba(255,255,255,0.15);
  border: none;
  color: white;
  font-size: 20px;
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  flex-shrink: 0;
}
.sp-header-back:active { background: rgba(255,255,255,0.25); }
.sp-header-title { font-size: 18px; font-weight: 700; line-height: 1.2; }
.sp-header-sub { font-size: 12px; opacity: 0.85; }

/* Tabs */
.sp-tabs {
  display: flex;
  overflow-x: auto;
  background: white;
  border-bottom: 2px solid var(--sp-border);
  padding: 0 8px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.sp-tabs::-webkit-scrollbar { display: none; }
.sp-tab {
  flex-shrink: 0;
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--sp-text-light);
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}
.sp-tab.active {
  color: var(--sp-primary);
  border-bottom-color: var(--sp-primary);
}
.sp-tab:active { background: var(--sp-primary-light); }

/* Content */
.sp-content {
  padding: 16px;
  padding-bottom: 80px;
  max-width: 800px;
  margin: 0 auto;
}

/* Cards */
.sp-card {
  background: var(--sp-card);
  border-radius: var(--sp-radius);
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: var(--sp-shadow);
  border: 1px solid var(--sp-border);
}
.sp-card-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sp-card-title-icon { font-size: 20px; }

/* Summary Grid */
.sp-summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}
.sp-summary-card {
  background: var(--sp-card);
  border-radius: var(--sp-radius-sm);
  padding: 14px 12px;
  box-shadow: var(--sp-shadow);
  border: 1px solid var(--sp-border);
  text-align: center;
}
.sp-summary-icon { font-size: 28px; margin-bottom: 6px; }
.sp-summary-label { font-size: 11px; color: var(--sp-text-light); font-weight: 600; margin-bottom: 4px; }
.sp-summary-value { font-size: 18px; font-weight: 800; color: var(--sp-text); }
.sp-summary-card.green .sp-summary-value { color: var(--sp-success); }
.sp-summary-card.red .sp-summary-value { color: var(--sp-danger); }
.sp-summary-card.blue .sp-summary-value { color: var(--sp-info); }
.sp-summary-card.yellow .sp-summary-value { color: var(--sp-warning); }

/* Form Fields */
.sp-field { margin-bottom: 14px; }
.sp-field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--sp-text-light);
  margin-bottom: 6px;
}
.sp-field input,
.sp-field select,
.sp-field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 2px solid var(--sp-border);
  border-radius: var(--sp-radius-sm);
  font-size: 15px;
  color: var(--sp-text);
  background: white;
  outline: none;
  transition: border-color 0.2s;
  -webkit-appearance: none;
}
.sp-field input:focus,
.sp-field select:focus,
.sp-field textarea:focus {
  border-color: var(--sp-primary);
}
.sp-field textarea { resize: vertical; min-height: 80px; }

.sp-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* Buttons */
.sp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 20px;
  border: none;
  border-radius: var(--sp-radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  width: 100%;
  min-height: 48px;
}
.sp-btn:active { transform: scale(0.97); }

.sp-btn-primary { background: var(--sp-primary); color: white; }
.sp-btn-primary:active { background: var(--sp-primary-dark); }

.sp-btn-secondary { background: var(--sp-primary-light); color: var(--sp-primary); }
.sp-btn-secondary:active { background: #bbf7d0; }

.sp-btn-danger { background: #fef2f2; color: var(--sp-danger); }
.sp-btn-danger:active { background: #fee2e2; }

.sp-btn-sm {
  padding: 8px 14px;
  font-size: 13px;
  min-height: 36px;
  width: auto;
}

.sp-btn-icon {
  padding: 8px;
  width: auto;
  min-height: auto;
  font-size: 18px;
}

.sp-btn-group {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}
.sp-btn-group .sp-btn { flex: 1; }

/* Tractor Selection */
.sp-tractor-select {
  background: var(--sp-card);
  border-radius: var(--sp-radius);
  padding: 20px 16px;
  margin-bottom: 16px;
  box-shadow: var(--sp-shadow);
  border: 2px solid var(--sp-border);
}
.sp-tractor-select.active { border-color: var(--sp-primary); }

.sp-tractor-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--sp-primary-light);
  color: var(--sp-primary);
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
}

.sp-company-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}
.sp-company-btn {
  padding: 10px 6px;
  border: 2px solid var(--sp-border);
  border-radius: var(--sp-radius-sm);
  background: white;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s;
  color: var(--sp-text);
}
.sp-company-btn.selected {
  border-color: var(--sp-primary);
  background: var(--sp-primary-light);
  color: var(--sp-primary);
}
.sp-company-btn:active { background: #f3f4f6; }

/* Search Box */
.sp-search-box {
  position: relative;
  margin-bottom: 16px;
}
.sp-search-input {
  width: 100%;
  padding: 14px 14px 14px 44px;
  border: 2px solid var(--sp-border);
  border-radius: var(--sp-radius);
  font-size: 16px;
  background: white;
  outline: none;
  transition: border-color 0.2s;
  box-shadow: var(--sp-shadow);
}
.sp-search-input:focus { border-color: var(--sp-primary); }
.sp-search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  color: var(--sp-text-light);
}

/* Part Cards */
.sp-part-card {
  background: var(--sp-card);
  border-radius: var(--sp-radius);
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: var(--sp-shadow);
  border: 1px solid var(--sp-border);
  cursor: pointer;
  transition: all 0.2s;
}
.sp-part-card:active { border-color: var(--sp-primary); background: #f0fdf4; }

.sp-part-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 8px;
}
.sp-part-name { font-size: 16px; font-weight: 700; flex: 1; }
.sp-part-category {
  font-size: 11px;
  background: var(--sp-primary-light);
  color: var(--sp-primary);
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 600;
  flex-shrink: 0;
}
.sp-part-meta {
  font-size: 13px;
  color: var(--sp-text-light);
  margin-bottom: 8px;
}
.sp-part-compat {
  font-size: 12px;
  color: var(--sp-text-light);
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}
.sp-part-compat-tag {
  background: #f3f4f6;
  padding: 2px 8px;
  border-radius: 8px;
  font-size: 11px;
}

/* Source / Price Card */
.sp-source-card {
  background: white;
  border-radius: var(--sp-radius-sm);
  padding: 14px;
  margin-bottom: 10px;
  border: 2px solid var(--sp-border);
  transition: all 0.2s;
}
.sp-source-card.best {
  border-color: var(--sp-success);
  background: #f0fdf4;
}
.sp-source-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.sp-source-name { font-weight: 700; font-size: 14px; }
.sp-source-badge {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 600;
}
.sp-badge-genuine { background: #dcfce7; color: #166534; }
.sp-badge-aftermarket { background: #dbeafe; color: #1e40af; }
.sp-badge-unknown { background: #fef3c7; color: #92400e; }
.sp-badge-unverified { background: #f3f4f6; color: #6b7280; }

.sp-price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  margin-top: 6px;
}
.sp-price-label { color: var(--sp-text-light); }
.sp-price-value { font-weight: 600; }
.sp-price-total {
  font-size: 18px;
  font-weight: 800;
  color: var(--sp-primary);
  margin-top: 8px;
}
.sp-price-na {
  color: var(--sp-text-light);
  font-style: italic;
  font-size: 13px;
}

.sp-source-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--sp-primary);
  font-weight: 600;
  font-size: 13px;
  text-decoration: none;
  margin-top: 10px;
  padding: 8px 14px;
  background: var(--sp-primary-light);
  border-radius: 8px;
  transition: background 0.2s;
}
.sp-source-link:active { background: #bbf7d0; }

/* Best Price Banner */
.sp-best-banner {
  background: linear-gradient(135deg, #176b35, #16a34a);
  color: white;
  border-radius: var(--sp-radius);
  padding: 16px;
  margin-bottom: 16px;
  text-align: center;
}
.sp-best-banner-label { font-size: 13px; opacity: 0.9; margin-bottom: 4px; }
.sp-best-banner-price { font-size: 32px; font-weight: 800; }
.sp-best-banner-sub { font-size: 12px; opacity: 0.8; margin-top: 4px; }

/* Analysis */
.sp-analysis-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}
.sp-analysis-item {
  background: #f9fafb;
  border-radius: var(--sp-radius-sm);
  padding: 12px;
  text-align: center;
}
.sp-analysis-item.green { background: #f0fdf4; }
.sp-analysis-item.red { background: #fef2f2; }
.sp-analysis-label { font-size: 11px; color: var(--sp-text-light); font-weight: 600; }
.sp-analysis-value { font-size: 16px; font-weight: 800; margin-top: 4px; }

/* Badges */
.sp-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}
.sp-badge-green { background: #dcfce7; color: #166534; }
.sp-badge-yellow { background: #fef3c7; color: #92400e; }
.sp-badge-red { background: #fee2e2; color: #991b1b; }
.sp-badge-blue { background: #dbeafe; color: #1e40af; }
.sp-badge-gray { background: #f3f4f6; color: #6b7280; }

/* Empty State */
.sp-empty {
  text-align: center;
  padding: 32px 20px;
  color: var(--sp-text-light);
}
.sp-empty-icon { font-size: 48px; margin-bottom: 12px; }
.sp-empty-text { font-size: 16px; font-weight: 600; margin-bottom: 6px; color: var(--sp-text); }
.sp-empty-sub { font-size: 13px; }

/* Quick Chips */
.sp-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.sp-chip {
  padding: 8px 14px;
  border: 2px solid var(--sp-border);
  border-radius: 20px;
  background: white;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--sp-text);
}
.sp-chip.selected {
  border-color: var(--sp-primary);
  background: var(--sp-primary-light);
  color: var(--sp-primary);
}
.sp-chip:active { background: #f3f4f6; }

/* History List Item */
.sp-history-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--sp-border);
}
.sp-history-item:last-child { border-bottom: none; }
.sp-history-icon { font-size: 24px; flex-shrink: 0; }
.sp-history-info { flex: 1; }
.sp-history-title { font-size: 14px; font-weight: 600; }
.sp-history-sub { font-size: 12px; color: var(--sp-text-light); margin-top: 2px; }
.sp-history-cost { font-size: 15px; font-weight: 700; color: var(--sp-text); flex-shrink: 0; }

/* Filter Row */
.sp-filter-row {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 12px;
  -webkit-overflow-scrolling: touch;
}
.sp-filter-btn {
  flex-shrink: 0;
  padding: 8px 14px;
  border: 2px solid var(--sp-border);
  border-radius: 20px;
  background: white;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  color: var(--sp-text-light);
  transition: all 0.2s;
}
.sp-filter-btn.active {
  border-color: var(--sp-primary);
  background: var(--sp-primary-light);
  color: var(--sp-primary);
}

/* Tractor Pre-fill Banner */
.sp-prefill-banner {
  background: linear-gradient(135deg, #ecfdf5, #dcfce7);
  border: 2px solid #bbf7d0;
  border-radius: var(--sp-radius);
  padding: 14px 16px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.sp-prefill-icon { font-size: 32px; }
.sp-prefill-info { flex: 1; }
.sp-prefill-title { font-size: 14px; font-weight: 700; color: var(--sp-primary-dark); }
.sp-prefill-sub { font-size: 12px; color: var(--sp-text-light); }
.sp-prefill-btn {
  background: var(--sp-primary);
  color: white;
  border: none;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  flex-shrink: 0;
}

/* Part Detail Modal */
.sp-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
  display: none;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
}
.sp-modal-overlay.active { display: flex; }
.sp-modal {
  background: white;
  border-radius: var(--sp-radius) var(--sp-radius) 0 0;
  width: 100%;
  max-width: 600px;
  max-height: 85vh;
  overflow-y: auto;
  animation: sp-slideUp 0.3s ease;
}
@keyframes sp-slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}
.sp-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  border-bottom: 1px solid var(--sp-border);
  position: sticky;
  top: 0;
  background: white;
  z-index: 1;
}
.sp-modal-header h3 { font-size: 17px; }
.sp-modal-close {
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  padding: 4px 8px;
  color: var(--sp-text-light);
}
.sp-modal-body { padding: 16px; }

/* Toast */
.sp-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: #1f2937;
  color: white;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  z-index: 9999;
  animation: sp-fadeIn 0.3s;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
}
@keyframes sp-fadeIn {
  from { opacity: 0; transform: translateX(-50%) translateY(20px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Responsive */
@media (min-width: 600px) {
  .sp-content { padding: 24px; }
  .sp-summary-grid { grid-template-columns: repeat(4, 1fr); }
  .sp-company-grid { grid-template-columns: repeat(4, 1fr); }
  .sp-row { grid-template-columns: 1fr 1fr; }
  .sp-analysis-row { grid-template-columns: repeat(4, 1fr); }
  .sp-modal { border-radius: var(--sp-radius); margin-bottom: 20px; }
}

@media (max-width: 360px) {
  .sp-company-grid { grid-template-columns: repeat(2, 1fr); }
  .sp-summary-grid { grid-template-columns: 1fr 1fr; }
}

/* ===== LOADING SPINNER ===== */
.sp-loading { text-align: center; padding: 40px 20px; }
.sp-loading-spinner {
  width: 40px; height: 40px; margin: 0 auto 12px;
  border: 4px solid #e5e7eb; border-top: 4px solid #176b35;
  border-radius: 50%; animation: sp-spin 1s linear infinite;
}
@keyframes sp-spin { to { transform: rotate(360deg); } }
.sp-loading-text { font-size: 16px; font-weight: 600; color: var(--sp-text); margin-bottom: 6px; }
.sp-loading-sub { font-size: 13px; color: var(--sp-text-light); }

/* ===== SEARCH SUMMARY ===== */
.sp-search-summary { margin-bottom: 12px; }
.sp-search-summary-row { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.sp-search-count { font-size: 14px; font-weight: 600; color: var(--sp-text); }
.sp-search-sources { font-size: 13px; color: var(--sp-text-light); }
.sp-best-price { font-size: 14px; font-weight: 700; color: #16a34a; background: #f0fdf4; padding: 4px 10px; border-radius: 8px; }

/* ===== RESULT CARD META ===== */
.sp-part-meta-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 6px; }
.sp-price { font-size: 18px; font-weight: 700; color: #15803d; }
.sp-price-na { font-size: 14px; color: #92400e; font-style: italic; }
.sp-total-price { font-size: 13px; color: #2563eb; font-weight: 600; }
.sp-availability { font-size: 12px; font-weight: 500; }
.sp-avail-green { color: #16a34a; }
.sp-avail-gray { color: #9ca3af; }
.sp-rating { font-size: 12px; color: #d97706; }
.sp-part-source { font-size: 11px; color: var(--sp-text-light); background: #f3f4f6; padding: 2px 8px; border-radius: 6px; }