/* Apple Store Inventory Radar Styles - Clean Apple Aesthetic */
:root {
  --font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);

  --bg-page: #fbfbfd;
  --bg-card: #ffffff;
  --border-color: #e5e5ea;
  --border-active: #0071e3;

  --ink-primary: #1d1d1f;
  --ink-secondary: #86868b;
  --ink-muted: #a1a1a6;

  --apple-blue: #0071e3;
  --apple-blue-hover: #0077ed;
  --apple-blue-soft: #f0f7ff;

  --apple-green: #34c759;
  --apple-green-soft: #e8f9ed;
  --apple-green-border: #a3e9b6;

  --apple-red: #ff3b30;
  --apple-red-soft: #ffeceb;
  --apple-red-border: #ffb8b5;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.12);
}

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

body {
  background-color: var(--bg-page);
  color: var(--ink-primary);
  font-family: var(--font-family);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 20px 80px 20px;
}

/* Top Subnav */
.top-subnav {
  display: flex;
  justify-content: center;
  gap: 32px;
  padding: 20px 0 14px 0;
  border-bottom: 1px solid #f0f0f2;
  margin-bottom: 36px;
}

.subnav-link {
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-secondary);
  padding: 6px 0;
  position: relative;
  transition: var(--transition);
}

.subnav-link:hover {
  color: var(--apple-blue);
}

.subnav-link.active {
  color: var(--ink-primary);
  font-weight: 600;
}

.subnav-link.active::after {
  content: "";
  position: absolute;
  bottom: -15px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--apple-blue);
  border-radius: 2px;
}

/* Hero */
.hero {
  text-align: center;
  padding: 10px 0 36px 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: #f0f7ff;
  border: 1px solid #cce5ff;
  border-radius: 99px;
  font-size: 13px;
  font-weight: 600;
  color: var(--apple-blue);
  margin-bottom: 16px;
}

.live-dot {
  width: 8px;
  height: 8px;
  background-color: var(--apple-green);
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(52, 199, 89, 0.25);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 199, 89, 0.5); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 6px rgba(52, 199, 89, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 199, 89, 0); }
}

.hero-title {
  font-size: 38px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: var(--ink-primary);
}

.hero-desc {
  font-size: 16px;
  color: var(--ink-secondary);
  max-width: 680px;
  margin: 0 auto;
}

/* Cards */
.card {
  background: var(--bg-card);
  border-radius: 18px;
  border: 1px solid var(--border-color);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}

.card-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}

.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--apple-blue);
  color: #ffffff;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.card-title {
  font-size: 19px;
  font-weight: 600;
  color: var(--ink-primary);
  letter-spacing: -0.01em;
}

.card-subtitle {
  font-size: 13px;
  color: var(--ink-secondary);
  margin-top: 2px;
}

/* City chips */
.city-chips-wrap {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.chip-label {
  font-size: 13px;
  color: var(--ink-secondary);
  font-weight: 500;
}

.chips-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.city-chip {
  background: #f2f2f7;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 5px 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-primary);
  cursor: pointer;
  transition: var(--transition);
}

.city-chip:hover {
  background: #e5e5ea;
}

.city-chip.active {
  background: var(--apple-blue);
  color: #ffffff;
}

/* Store grid */
.store-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
  max-height: 240px;
  overflow-y: auto;
  padding: 4px;
  border: 1px solid #f2f2f7;
  border-radius: 12px;
  background: #fafafc;
  margin-bottom: 16px;
}

.store-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
}

.store-card:hover {
  border-color: #b0b0b8;
  transform: translateY(-1px);
}

.store-card.selected {
  border-color: var(--apple-blue);
  background: #f0f7ff;
  box-shadow: 0 0 0 2px rgba(0, 113, 227, 0.2);
}

.store-card-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-primary);
}

.store-card-city {
  font-size: 12px;
  color: var(--ink-secondary);
  margin-top: 2px;
}

/* Selected Store Banner */
.selected-store-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #f5f5f7;
  border-radius: 12px;
  padding: 14px 18px;
  border: 1px solid #e5e5ea;
}

.store-banner-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.store-pin {
  font-size: 20px;
}

.store-banner-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-primary);
}

.store-banner-addr {
  font-size: 12px;
  color: var(--ink-secondary);
  margin-top: 2px;
}

.store-banner-phone {
  font-size: 13px;
  font-weight: 600;
  color: var(--apple-blue);
}

/* Model series tabs */
.model-tabs-wrap {
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 18px;
}

.model-tabs {
  display: flex;
  gap: 10px;
  white-space: nowrap;
}

.model-tab-btn {
  background: #f2f2f7;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-primary);
  cursor: pointer;
  transition: var(--transition);
}

.model-tab-btn:hover {
  background: #e5e5ea;
}

.model-tab-btn.active {
  background: var(--apple-blue);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(0, 113, 227, 0.25);
}

/* Specs */
.specs-box {
  background: #fafafc;
  border: 1px solid #f2f2f7;
  border-radius: 14px;
  padding: 18px;
}

.spec-row {
  margin-bottom: 18px;
}

.spec-row:last-child {
  margin-bottom: 0;
}

.spec-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.spec-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.spec-action {
  font-size: 12px;
  color: var(--apple-blue);
  cursor: pointer;
  font-weight: 500;
}

.colors-wrap, .capacities-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.color-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-primary);
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.color-chip:hover {
  border-color: #b0b0b8;
}

.color-chip.selected {
  border-color: var(--apple-blue);
  background: #f0f7ff;
  color: var(--apple-blue);
  font-weight: 600;
}

.color-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.1);
  display: inline-block;
}

.cap-chip {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-primary);
  cursor: pointer;
  transition: var(--transition);
}

.cap-chip:hover {
  border-color: #b0b0b8;
}

.cap-chip.selected {
  border-color: var(--apple-blue);
  background: #f0f7ff;
  color: var(--apple-blue);
}

/* Control Panel */
.control-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 28px;
  background: #ffffff;
  padding: 16px 20px;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--apple-blue);
  color: #ffffff;
  border: none;
  border-radius: 12px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary:hover {
  background: var(--apple-blue-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0, 113, 227, 0.3);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  background: #f2f2f7;
  color: var(--ink-primary);
  border: none;
  border-radius: 10px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.btn-secondary:hover {
  background: #e5e5ea;
}

.toggle-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.toggle-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.toggle-item input {
  display: none;
}

.toggle-switch {
  width: 38px;
  height: 22px;
  background: #e5e5ea;
  border-radius: 12px;
  position: relative;
  transition: var(--transition);
}

.toggle-switch::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  background: #ffffff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
}

.toggle-item input:checked + .toggle-switch {
  background: var(--apple-green);
}

.toggle-item input:checked + .toggle-switch::after {
  transform: translateX(16px);
}

.toggle-text {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-primary);
}

/* Results Section */
.results-section {
  margin-bottom: 30px;
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.results-title-box {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.results-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink-primary);
}

.query-time {
  font-size: 12px;
  color: var(--ink-secondary);
}

.results-summary {
  display: flex;
  gap: 8px;
}

.badge-pill {
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
}

.in-stock-badge {
  background: var(--apple-green-soft);
  color: var(--apple-green);
  border: 1px solid var(--apple-green-border);
}

.out-stock-badge {
  background: var(--apple-red-soft);
  color: var(--apple-red);
  border: 1px solid var(--apple-red-border);
}

/* Inventory Cards Grid */
.inventory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.empty-placeholder {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  background: #ffffff;
  border: 1px dashed var(--border-color);
  border-radius: 16px;
  color: var(--ink-secondary);
}

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

.item-card {
  background: #ffffff;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.item-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.item-card.is-available {
  border-color: var(--apple-green);
  background: #fcfffd;
  box-shadow: 0 4px 16px rgba(52, 199, 89, 0.12);
}

.item-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.item-card-model {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-primary);
}

.item-card-spec {
  font-size: 13px;
  color: var(--ink-secondary);
  margin-top: 2px;
}

.status-badge {
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.status-badge.available {
  background: var(--apple-green-soft);
  color: #1b8738;
  border: 1px solid var(--apple-green-border);
}

.status-badge.unavailable {
  background: var(--apple-red-soft);
  color: #c92a2a;
  border: 1px solid var(--apple-red-border);
}

.status-badge.unknown {
  background: #f2f2f7;
  color: var(--ink-secondary);
  border: 1px solid #e5e5ea;
}

.item-card-mid {
  padding: 10px 0;
  border-top: 1px solid #f2f2f7;
  border-bottom: 1px solid #f2f2f7;
  margin-bottom: 14px;
}

.quote-line {
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.quote-line.available {
  color: #1b8738;
}

.quote-line.unavailable {
  color: #86868b;
}

.part-number {
  font-size: 11px;
  font-family: monospace;
  color: var(--ink-muted);
  margin-top: 4px;
}

.btn-buy {
  display: block;
  text-align: center;
  text-decoration: none;
  background: #f2f2f7;
  color: var(--ink-primary);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 10px;
  transition: var(--transition);
}

.btn-buy:hover {
  background: var(--apple-blue);
  color: #ffffff;
}

.item-card.is-available .btn-buy {
  background: var(--apple-blue);
  color: #ffffff;
}

.item-card.is-available .btn-buy:hover {
  background: var(--apple-blue-hover);
}

/* Log Card */
.log-card {
  padding: 16px 20px;
}

.log-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.log-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-secondary);
}

.btn-text {
  background: none;
  border: none;
  color: var(--ink-muted);
  font-size: 12px;
  cursor: pointer;
}

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

.log-terminal {
  background: #1c1d21;
  border-radius: 10px;
  padding: 12px 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  color: #a0a5b5;
  max-height: 160px;
  overflow-y: auto;
}

.log-line {
  margin-bottom: 4px;
}

.log-line.success {
  color: #4ade80;
}

.log-line.error {
  color: #f87171;
}

.log-line.info {
  color: #60a5fa;
}

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  z-index: 999;
  align-items: center;
  justify-content: center;
}

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

.modal-card {
  background: #ffffff;
  border-radius: 18px;
  max-width: 480px;
  width: 90%;
  padding: 24px;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--ink-secondary);
}

.modal-desc {
  font-size: 13px;
  color: var(--ink-secondary);
  line-height: 1.5;
  margin-bottom: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  font-size: 14px;
  outline: none;
}

.form-input:focus {
  border-color: var(--apple-blue);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15);
}

.form-hint {
  display: block;
  font-size: 11px;
  color: var(--ink-muted);
  margin-top: 4px;
}

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

/* SEO Guide & FAQ Section */
.seo-guide-section {
  margin-top: 32px;
  padding: 32px 28px;
}
.seo-header {
  margin-bottom: 24px;
}
.seo-header h2 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 6px;
  color: var(--ink-primary);
}
.seo-header p {
  font-size: 13.5px;
  color: var(--ink-secondary);
}
.guide-steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}
.guide-step-card {
  background: #fbfbfd;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 18px 16px;
}
.guide-step-icon {
  font-size: 24px;
  margin-bottom: 8px;
}
.guide-step-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--ink-primary);
}
.guide-step-desc {
  font-size: 13px;
  color: var(--ink-secondary);
  line-height: 1.6;
}
.faq-list {
  border-top: 1px solid #f0f0f2;
  padding-top: 20px;
}
.faq-item {
  margin-bottom: 18px;
}
.faq-item:last-child {
  margin-bottom: 0;
}
.faq-question {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-primary);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.faq-answer {
  font-size: 13px;
  color: var(--ink-secondary);
  line-height: 1.6;
}
.city-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #f0f0f2;
}
.city-tag-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-secondary);
}
.city-tag {
  font-size: 12px;
  padding: 4px 10px;
  background: #f5f5f7;
  color: var(--ink-secondary);
  border-radius: 6px;
  text-decoration: none;
  transition: var(--transition);
}
.city-tag:hover {
  background: var(--apple-blue-soft);
  color: var(--apple-blue);
}

/* Footer */
.footer {
  text-align: center;
  padding: 40px 0 20px 0;
  border-top: 1px solid #f0f0f2;
  color: var(--ink-muted);
  font-size: 12px;
  line-height: 1.6;
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 28px;
  }
  .control-panel {
    flex-direction: column;
    align-items: stretch;
  }
  .toggle-group {
    justify-content: space-between;
  }
}