/* Seed Swap Compatibility Checker - Styles */
:root {
  --color-bg: #1a1c17;
  --color-surface: #242820;
  --color-surface-alt: #2d3328;
  --color-border: #3d4535;
  --color-text: #e8e6df;
  --color-text-muted: #9a9e8f;
  --color-accent: #7cb518;
  --color-accent-dark: #5a8a10;
  --color-accent-light: #a8d46a;
  --color-safe: #4ade80;
  --color-warn: #facc15;
  --color-danger: #f87171;
  --color-header-bg: #141612;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, monospace;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 2px 8px rgba(0,0,0,0.3);
  --max-width: 1200px;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--color-accent-light); text-decoration: none; }
a:hover { text-decoration: underline; }

img, svg { max-width: 100%; height: auto; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  white-space: nowrap;
}

.logo:hover { text-decoration: none; }
.logo-text { letter-spacing: -0.02em; }

.main-nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.main-nav a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.main-nav a:hover { color: var(--color-accent-light); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 4px;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
}

.mobile-menu {
  background: var(--color-header-bg);
  border-top: 1px solid var(--color-border);
  padding: 1rem 1.5rem;
}

.mobile-menu a {
  display: block;
  padding: 0.5rem 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.mobile-menu[hidden] { display: none; }

/* Section basics */
section { padding: 3.5rem 0; }

.section-intro { text-align: center; max-width: 640px; margin: 0 auto 2.5rem; }
.section-intro h1, .section-intro h2 { color: var(--color-accent-light); letter-spacing: -0.02em; }
.section-intro h1 { font-size: 2.2rem; margin-bottom: 0.75rem; }
.section-intro h2 { font-size: 1.8rem; margin-bottom: 0.5rem; }
.section-intro .lead { color: var(--color-text-muted); font-size: 1.05rem; }

/* Checker section */
.checker-section { background: var(--color-bg); }

.checker-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 2rem;
  align-items: start;
}

/* Crop selector */
.crop-selector {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  position: sticky;
  top: 80px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
}

.selector-header h2 {
  font-size: 1.2rem;
  color: var(--color-accent-light);
  margin-bottom: 1rem;
}

.presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  margin-bottom: 1.25rem;
}

.presets-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-right: 0.25rem;
}

.preset-btn {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 0.3rem 0.7rem;
  border-radius: 20px;
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.2s;
}

.preset-btn:hover { background: var(--color-border); }
.preset-btn[data-style="ghost"] { border-style: dashed; opacity: 0.7; }

.crop-category { margin-bottom: 1.25rem; }
.category-title {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.crop-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.crop-btn {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.15s;
}

.crop-btn:hover { border-color: var(--color-accent); }
.crop-btn.active {
  background: rgba(124, 181, 24, 0.15);
  border-color: var(--color-accent);
  color: var(--color-accent-light);
}

.crop-icon { font-size: 1rem; }

/* Results panel */
.results-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  min-height: 400px;
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.results-header h2 {
  font-size: 1.2rem;
  color: var(--color-accent-light);
}

.results-actions { display: flex; gap: 0.5rem; }

.action-btn {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.15s;
}

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

/* Empty state */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--color-text-muted);
}

.empty-icon { font-size: 3rem; margin-bottom: 0.5rem; }
.empty-state p { margin-bottom: 0.5rem; }
.empty-state strong { color: var(--color-text); }

/* Result groups */
.result-group { margin-bottom: 1.5rem; }
.group-title {
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.group-note {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.status-dot.safe { background: var(--color-safe); }
.status-dot.isolate { background: var(--color-warn); }
.status-dot.fresh { background: var(--color-danger); }

.safe-group .group-title { color: var(--color-safe); }
.isolate-group .group-title { color: var(--color-warn); }
.fresh-group .group-title { color: var(--color-danger); }

.crop-list {
  list-style: none;
  padding-left: 0;
}

.crop-list li {
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.88rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.crop-list li:last-child { border-bottom: none; }

.isolation-badge {
  font-size: 0.75rem;
  background: var(--color-surface-alt);
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.warnings-section {
  background: rgba(250, 204, 21, 0.08);
  border: 1px solid rgba(250, 204, 21, 0.2);
  border-radius: var(--radius);
  padding: 1rem;
  margin-top: 1rem;
}

.warnings-list { list-style: none; padding: 0; }
.warnings-list li {
  font-size: 0.85rem;
  padding: 0.3rem 0;
  color: var(--color-warn);
}

/* Reference section */
.reference-section { background: var(--color-surface); }

.reference-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 1.5rem;
}

.ref-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.ref-card h3 {
  color: var(--color-accent-light);
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
}

.ref-card p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin-bottom: 0.6rem;
  line-height: 1.65;
}

.ref-card p:last-child { margin-bottom: 0; }

.table-wrapper { overflow-x: auto; margin: 0.75rem 0; }

.ref-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.ref-table th {
  text-align: left;
  padding: 0.5rem 0.75rem;
  background: var(--color-surface-alt);
  color: var(--color-text-muted);
  font-weight: 600;
  border-bottom: 2px solid var(--color-border);
}

.ref-table td {
  padding: 0.45rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

.table-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-style: italic;
  margin-top: 0.5rem;
}

.mistake-list {
  list-style: none;
  padding: 0;
}

.mistake-list li {
  font-size: 0.88rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.mistake-list li:last-child { border-bottom: none; }
.mistake-list strong { color: var(--color-text); }

/* Calendar section */
.calendar-section { background: var(--color-bg); }

.calendar-actions { text-align: center; margin-bottom: 1.5rem; }

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.calendar-month {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.calendar-month h3 {
  color: var(--color-accent-light);
  font-size: 1rem;
  margin-bottom: 0.6rem;
}

.calendar-month ul {
  list-style: none;
  padding: 0;
}

.calendar-month li {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  padding: 0.3rem 0;
  padding-left: 1rem;
  position: relative;
}

.calendar-month li::before {
  content: "\2022";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

/* How section */
.how-section { background: var(--color-surface); }

.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.how-step {
  text-align: center;
  padding: 1.5rem;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-bg);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.how-step h3 {
  color: var(--color-text);
  font-size: 1rem;
  margin-bottom: 0.4rem;
}

.how-step p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.assumptions-box {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.assumptions-box h3 {
  color: var(--color-accent-light);
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.assumptions-box ul {
  list-style: none;
  padding: 0;
}

.assumptions-box li {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  padding: 0.3rem 0;
  padding-left: 1.25rem;
  position: relative;
}

.assumptions-box li::before {
  content: "\2192";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

/* Footer */
.site-footer {
  background: var(--color-header-bg);
  border-top: 1px solid var(--color-border);
  padding: 2.5rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand .logo-text {
  font-weight: 700;
  color: var(--color-accent-light);
  font-size: 1rem;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
}

.footer-links h4 {
  font-size: 0.85rem;
  color: var(--color-text);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links a {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  padding: 0.2rem 0;
}

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

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer-bottom a { color: var(--color-text-muted); }

/* Toast notification */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--color-accent);
  color: var(--color-bg);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.88rem;
  font-weight: 600;
  z-index: 1000;
  box-shadow: var(--shadow);
  animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Print styles */
@media print {
  .site-header, .site-footer, .crop-selector, .results-actions, .calendar-actions, .nav-toggle { display: none !important; }
  body { background: #fff; color: #000; }
  .results-panel, .ref-card, .calendar-month { border: 1px solid #ccc; break-inside: avoid; }
  .checker-layout { display: block; }
  .results-content { display: block !important; }
  .empty-state { display: none !important; }
}

/* Responsive */
@media (max-width: 900px) {
  .checker-layout { grid-template-columns: 1fr; }
  .crop-selector { position: static; max-height: none; }
  .how-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .section-intro h1 { font-size: 1.6rem; }
  .section-intro h2 { font-size: 1.4rem; }
  .reference-grid { grid-template-columns: 1fr; }
  .calendar-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .results-header { flex-direction: column; align-items: flex-start; }
  .crop-grid { gap: 0.3rem; }
  .crop-btn { font-size: 0.78rem; padding: 0.35rem 0.6rem; }
}

/* Scrollbar styling */
.crop-selector::-webkit-scrollbar { width: 6px; }
.crop-selector::-webkit-scrollbar-track { background: transparent; }
.crop-selector::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }

/* Focus styles for accessibility */
button:focus-visible, a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}



/* 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;
}