/* FairShare Scheduler - Complete Styles */
:root {
  --color-primary: #4F46E5;
  --color-primary-light: #EEF2FF;
  --color-secondary: #7C3AED;
  --color-accent: #EC4899;
  --color-bg: #F9FAFB;
  --color-surface: #FFFFFF;
  --color-text: #1F2937;
  --color-text-secondary: #6B7280;
  --color-border: #E5E7EB;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -1px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

/* Header */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.logo svg {
  flex-shrink: 0;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 24px;
}

.main-nav a {
  text-decoration: none;
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* Main content */
main {
  flex: 1;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, #FDF2F8 100%);
  padding: 56px 0 40px;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: 12px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  max-width: 680px;
  margin: 0 auto 24px;
  line-height: 1.7;
}

/* Tool Section */
.tool-section {
  padding: 48px 0 60px;
}

.tool-panel {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  margin-bottom: 32px;
}

.tool-panel h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--color-text);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text);
}

.hint {
  font-weight: 400;
  color: var(--color-text-secondary);
  font-size: 0.8rem;
}

.form-group textarea,
.form-group input {
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  resize: vertical;
  transition: border-color 0.2s, box-shadow 0.2s;
  background: var(--color-bg);
}

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

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border: none;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: #4338CA;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

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

/* Schedule Output */
.schedule-output {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  animation: fadeIn 0.3s ease;
}

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

.output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 20px;
}

.output-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
}

.output-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.fairness-meter {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  padding: 12px 16px;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
}

.fairness-label {
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
}

.meter-bar {
  flex: 1;
  height: 10px;
  background: #E5E7EB;
  border-radius: 5px;
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-success), #34D399);
  border-radius: 5px;
  transition: width 0.5s ease;
  width: 0%;
}

.fairness-value {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-success);
  min-width: 40px;
  text-align: right;
}

/* Calendar Grid */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.shift-card {
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: box-shadow 0.2s;
}

.shift-card:hover {
  box-shadow: var(--shadow-md);
}

.shift-card h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.shift-card .volunteer-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
}

.shift-card .task-name {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.shift-card .time-slot {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-top: 6px;
  font-weight: 500;
}

/* Stats Summary */
.stats-summary {
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  padding: 20px;
}

.stats-summary h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.stats-summary ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
}

.stats-summary li {
  font-size: 0.9rem;
  color: var(--color-text);
  display: flex;
  justify-content: space-between;
  padding: 6px 10px;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
}

.stats-summary li span:last-child {
  font-weight: 700;
  color: var(--color-primary);
}

/* Info Section */
.info-section {
  padding: 48px 0;
  background: var(--color-surface);
}

.info-section h2 {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 32px;
  letter-spacing: -0.02em;
}

.info-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.info-card {
  padding: 24px;
  border-radius: var(--radius-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.info-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-primary);
}

.info-card p {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* How It Works */
.how-it-works {
  padding: 48px 0 60px;
}

.how-it-works h2 {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 28px;
  letter-spacing: -0.02em;
}

.steps-list {
  max-width: 700px;
  margin: 0 auto;
  list-style: none;
  counter-reset: step;
}

.steps-list li {
  counter-increment: step;
  padding: 16px 16px 16px 56px;
  position: relative;
  margin-bottom: 16px;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  font-size: 0.95rem;
  line-height: 1.6;
}

.steps-list li::before {
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 16px;
  width: 30px;
  height: 30px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

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

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

.site-footer p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

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

.footer-nav a {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

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

/* About page */
.about-page {
  padding: 48px 0 60px;
}

.about-page h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.about-content {
  max-width: 720px;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text);
}

/* Legal pages */
.legal-page {
  padding: 48px 0 60px;
  max-width: 720px;
  margin: 0 auto;
}

.legal-page h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.legal-content {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 1.8rem;
  }
  .hero-subtitle {
    font-size: 1rem;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .tool-panel,
  .schedule-output {
    padding: 20px;
  }
  .output-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .calendar-grid {
    grid-template-columns: 1fr 1fr;
  }
  .info-cards {
    grid-template-columns: 1fr;
  }
  .site-footer .container {
    flex-direction: column;
    text-align: center;
  }
  .footer-nav {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .calendar-grid {
    grid-template-columns: 1fr;
  }
  .main-nav ul {
    gap: 14px;
  }
  .logo span {
    font-size: 1rem;
  }
}

/* Print styles */
@media print {
  .site-header, .site-footer, .setup-form, .output-actions, .hero, .info-section, .how-it-works {
    display: none !important;
  }
  .schedule-output {
    box-shadow: none;
    border: none;
    padding: 0;
  }
  .shift-card {
    break-inside: avoid;
    border: 1px solid #ccc;
  }
  body {
    background: #fff;
    color: #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;
}