/* FundSplit Styles */
:root {
  --primary: #2563EB;
  --primary-dark: #1D4ED8;
  --primary-light: #DBEAFE;
  --success: #059669;
  --success-light: #D1FAE5;
  --danger: #DC2626;
  --danger-light: #FEE2E2;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-500: #6B7280;
  --gray-700: #374151;
  --gray-900: #111827;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--gray-900);
  line-height: 1.6;
  background: var(--gray-50);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  background: white;
  border-bottom: 1px solid var(--gray-200);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--gray-900);
  font-weight: 700;
  font-size: 1.25rem;
}

.nav {
  display: flex;
  gap: 24px;
}

.nav a {
  text-decoration: none;
  color: var(--gray-700);
  font-weight: 500;
}

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

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 80px 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.subtitle {
  font-size: 1.25rem;
  opacity: 0.9;
  margin-bottom: 32px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s;
}

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

.btn-primary:hover { background: var(--gray-100); }

.btn-secondary {
  background: var(--gray-100);
  color: var(--gray-700);
}

.btn-secondary:hover { background: var(--gray-200); }

.btn-small {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.btn-icon {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--gray-500);
  cursor: pointer;
  padding: 4px 8px;
}

.btn-icon:hover { color: var(--danger); }

/* Cards */
.card {
  background: white;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.card h2 {
  font-size: 1.25rem;
  margin-bottom: 20px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.card-header h2 { margin-bottom: 0; }

/* Forms */
.form-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
}

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

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--gray-700);
}

input[type="text"],
input[type="number"],
input[type="date"],
select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 1rem;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

/* Presets */
.presets {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.preset-btn {
  padding: 8px 16px;
  border: 1px solid var(--gray-300);
  border-radius: 20px;
  background: white;
  cursor: pointer;
  font-size: 0.875rem;
}

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

/* Item Lists */
.item-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.item-row {
  display: flex;
  gap: 12px;
  align-items: center;
}

.item-row input[type="text"] { flex: 2; }
.item-row input[type="number"] { flex: 1; min-width: 80px; }

.participant-row { flex-wrap: wrap; }

.split-label {
  font-size: 0.875rem;
  color: var(--gray-500);
}

.participant-share {
  font-weight: 600;
  min-width: 70px;
  text-align: right;
}

.total-row {
  display: flex;
  justify-content: space-between;
  padding-top: 16px;
  margin-top: 16px;
  border-top: 2px solid var(--gray-200);
  font-weight: 600;
  font-size: 1.125rem;
}

.split-options {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.split-options select {
  width: auto;
  min-width: 160px;
}

/* Planner Layout */
.planner-section {
  padding: 40px 0;
}

.planner-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 32px;
  align-items: start;
}

.summary-panel {
  position: sticky;
  top: 80px;
}

.summary-card h2 { margin-bottom: 16px; }

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
}

.summary-row.highlight {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
}

.payout-list {
  margin: 16px 0;
}

.payout-item {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--gray-100);
}

.payout-item .amount {
  font-weight: 600;
}

.amount.positive { color: var(--success); }
.amount.negative { color: var(--danger); }

.summary-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 16px;
}

.summary-actions .btn {
  padding: 10px 12px;
  font-size: 0.875rem;
  text-align: center;
}

hr {
  border: none;
  border-top: 1px solid var(--gray-200);
  margin: 16px 0;
}

/* Examples */
.examples-section {
  padding: 60px 0;
  background: white;
}

.examples-section h2 {
  text-align: center;
  margin-bottom: 40px;
  font-size: 1.75rem;
}

.examples-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.example-card {
  background: var(--gray-50);
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
}

.example-card h3 {
  color: var(--primary);
  margin-bottom: 8px;
}

/* Saved */
.saved-section {
  padding: 60px 0;
}

.saved-section h2 {
  margin-bottom: 24px;
}

.saved-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.saved-item {
  background: white;
  padding: 16px 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.saved-item-info h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.saved-item-info p {
  font-size: 0.875rem;
  color: var(--gray-500);
}

.saved-item-actions {
  display: flex;
  gap: 8px;
}

.empty-state {
  text-align: center;
  color: var(--gray-500);
  padding: 40px;
}

/* Tips */
.tips-section {
  padding: 60px 0;
  background: var(--primary-light);
}

.tips-section h2 {
  text-align: center;
  margin-bottom: 40px;
  font-size: 1.75rem;
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.tip {
  background: white;
  padding: 24px;
  border-radius: var(--radius);
}

.tip h3 {
  color: var(--primary);
  margin-bottom: 8px;
}

/* FAQ */
.faq-section {
  padding: 60px 0;
}

.faq-section h2 {
  text-align: center;
  margin-bottom: 40px;
  font-size: 1.75rem;
}

.faq-list {
  max-width: 700px;
  margin: 0 auto;
}

details {
  background: white;
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}

summary {
  padding: 16px 20px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

summary::-webkit-details-marker { display: none; }

summary::after {
  content: '+';
  float: right;
  font-size: 1.25rem;
  color: var(--primary);
}

details[open] summary::after { content: '-'; }

details p {
  padding: 0 20px 16px;
  color: var(--gray-700);
}

/* Footer */
.site-footer {
  background: var(--gray-900);
  color: white;
  padding: 40px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}

.footer-grid strong {
  display: block;
  margin-bottom: 12px;
}

.footer-grid a {
  display: block;
  color: var(--gray-300);
  text-decoration: none;
  margin-bottom: 8px;
}

.footer-grid a:hover { color: white; }

.copyright {
  text-align: center;
  color: var(--gray-500);
  font-size: 0.875rem;
  padding-top: 20px;
  border-top: 1px solid var(--gray-700);
}

.copyright a { color: var(--gray-300); }

/* Print */
@media print {
  .site-header, .site-footer, .summary-actions, .presets, .btn, .btn-icon { display: none; }
  .planner-grid { display: block; }
  .summary-panel { position: static; }
  .card { box-shadow: none; border: 1px solid var(--gray-300); }
}

/* Responsive */
@media (max-width: 900px) {
  .planner-grid { grid-template-columns: 1fr; }
  .summary-panel { position: static; }
  .hero h1 { font-size: 2rem; }
  .form-row { grid-template-columns: 1fr; }
  .item-row { flex-wrap: wrap; }
  .nav { gap: 16px; }
  .nav a { font-size: 0.875rem; }
}

@media (max-width: 600px) {
  .hero { padding: 40px 0; }
  .hero h1 { font-size: 1.75rem; }
  .subtitle { font-size: 1rem; }
  .summary-actions { grid-template-columns: 1fr; }
  .presets { justify-content: center; }
}


/* 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;
}