/* ============================================
   ListingLingo — Used Item Title Polisher
   ============================================ */

:root {
  --color-bg: #FDFBF7;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F5F3EE;
  --color-border: #E2DFD7;
  --color-text: #1F2937;
  --color-text-secondary: #6B7280;
  --color-text-muted: #9CA3AF;
  --color-primary: #4F46E5;
  --color-primary-hover: #4338CA;
  --color-primary-light: #EEF2FF;
  --color-accent: #F59E0B;
  --color-success: #059669;
  --color-success-light: #D1FAE5;
  --color-error: #DC2626;
  --color-error-light: #FEE2E2;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.07);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.10);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  --max-width: 1120px;
  --header-height: 64px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.25;
  color: var(--color-text);
}

p {
  margin: 0;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: 18px;
}

.brand:hover {
  text-decoration: none;
}

.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav a {
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.15s;
}

.site-nav a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

/* Hero */
.hero-section {
  padding: 48px 0 24px;
  text-align: center;
}

.hero-text h1 {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--color-primary), #7C3AED);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 18px;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Section headings */
.section-heading {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.section-intro {
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  font-size: 15px;
}

/* Polisher section */
.polisher-section {
  padding: 32px 0 48px;
}

.polisher-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

@media (max-width: 860px) {
  .polisher-grid {
    grid-template-columns: 1fr;
  }
}

.polisher-inputs {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.field {
  margin-bottom: 18px;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

@media (max-width: 520px) {
  .field-row {
    grid-template-columns: 1fr;
  }
}

.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.field .optional {
  font-weight: 400;
  color: var(--color-text-muted);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 15px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.field textarea {
  resize: vertical;
  font-family: var(--font-mono);
  font-size: 14px;
}

.preset-buttons {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.preset-label {
  font-size: 13px;
  color: var(--color-text-muted);
  font-weight: 500;
}

.preset-btn {
  padding: 6px 14px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  background: var(--color-surface-alt);
  color: var(--color-text-secondary);
  font-size: 13px;
  font-weight: 500;
  transition: all 0.15s;
}

.preset-btn:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  transition: background 0.15s, transform 0.1s;
  width: 100%;
}

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

.btn-primary:active {
  transform: scale(0.98);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  background: var(--color-surface-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  transition: all 0.15s;
}

.btn-secondary:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-secondary.copied {
  background: var(--color-success-light);
  border-color: var(--color-success);
  color: var(--color-success);
}

/* Output card */
.polisher-output {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.output-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.output-empty {
  text-align: center;
  color: var(--color-text-muted);
  padding: 32px 0;
}

.output-result textarea {
  width: 100%;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-primary-light);
  color: var(--color-text);
  font-size: 15px;
  font-weight: 500;
  resize: vertical;
  margin-bottom: 14px;
}

.output-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
n}

.output-meta {
  font-size: 13px;
  color: var(--color-text-muted);
  padding-top: 10px;
  border-top: 1px solid var(--color-border);
}

/* Recent listings */
.recent-listings {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.recent-heading {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text-secondary);
}

.recent-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 260px;
  overflow-y: auto;
}

.recent-empty {
  font-size: 13px;
  color: var(--color-text-muted);
  font-style: italic;
}

.recent-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  background: var(--color-surface-alt);
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.recent-item-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--color-text);
}

.recent-item-remove {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 16px;
  padding: 2px 6px;
  border-radius: 4px;
  line-height: 1;
}

.recent-item-remove:hover {
  background: var(--color-error-light);
  color: var(--color-error);
}

/* Examples section */
.examples-section {
  padding: 48px 0;
}

.example-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 760px) {
  .example-grid {
    grid-template-columns: 1fr;
  }
}

.example-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.example-before,
.example-after {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
}

.example-before {
  background: var(--color-surface-alt);
  border-left: 3px solid var(--color-accent);
}

.example-after {
  background: var(--color-success-light);
  border-left: 3px solid var(--color-success);
}

.example-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
  color: var(--color-text-muted);
}

.example-before p,
.example-after p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.5;
}

.example-cat {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 3px 10px;
  border-radius: 12px;
  align-self: flex-start;
}

/* Tips section */
.tips-section {
  padding: 48px 0;
}

.tips-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 760px) {
  .tips-grid {
    grid-template-columns: 1fr;
  }
}

.tip-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px;
}

.tip-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.tip-card p,
.tip-card li {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.tip-card ul {
  list-style: disc;
  padding-left: 20px;
}

.tip-card li {
  margin-bottom: 4px;
}

/* Assumptions section */
.assumptions-section {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
}

.assumptions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 20px;
}

@media (max-width: 760px) {
  .assumptions-grid {
    grid-template-columns: 1fr;
  }
}

.assumptions-col h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text);
}

.assumptions-col ul {
  list-style: disc;
  padding-left: 20px;
}

.assumptions-col li {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.last-updated {
  margin-top: 24px;
  font-size: 12px;
  color: var(--color-text-muted);
  text-align: center;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 24px 0;
  margin-top: 48px;
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-brand .brand-name {
  font-weight: 700;
  font-size: 15px;
  color: var(--color-text);
}

.footer-tag {
  font-size: 13px;
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  font-size: 13px;
  color: var(--color-text-secondary);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-primary);
}

/* Toast notification */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--color-text);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 999;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
}

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

/* Focus visible */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Scrollbar styling */
.recent-list::-webkit-scrollbar {
  width: 6px;
}

.recent-list::-webkit-scrollbar-track {
  background: transparent;
}

.recent-list::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .toast {
    transition: none;
  }
}

/* Print */
@media print {
  .site-header,
  .site-footer,
  .polisher-inputs,
  .output-actions,
  .recent-listings,
  .preset-buttons,
  .btn-primary,
  .toast {
    display: none !important;
  }
  .polisher-grid {
    grid-template-columns: 1fr;
  }
  .output-card {
    border: 2px solid #000;
  }
}


/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}