/* ============================================
   Farmer Copilot — Brand Design System
   Colors sourced from packages/shared_repo/lib/ui/theme/farm_colors.dart
   ============================================ */

:root {
  /* Primary Brand Colors */
  --forest-green: #558B2F;
  --earth-brown: #5D4037;
  --harvest-amber: #FF8F00;
  --sky-blue: #5B9BD5;
  --terracotta: #D2691E;

  /* Neutrals */
  --cream: #FFF8E7;
  --sand: #F5EFE0;
  --white: #FFFFFF;
  --light-gray: #E0E0E0;
  --medium-gray: #9E9E9E;
  --dark-gray: #616161;
  --charcoal: #3C3C3C;

  /* Semantic */
  --healthy: #4CAF50;
  --warning: #FFA726;
  --critical: #E53935;

  /* Spacing (from FarmSpacing) */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-2xl: 32px;
  --space-3xl: 48px;
  --space-4xl: 64px;

  /* Border Radius (from FarmBorderRadius) */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Shadows (from FarmShadows) */
  --shadow-low: 0 2px 4px rgba(93,64,55,0.08);
  --shadow-md: 0 4px 8px rgba(93,64,55,0.10);
  --shadow-high: 0 8px 16px rgba(93,64,55,0.12);

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Merriweather', Georgia, serif;
}

/* ============================================
   Reset & Base
   ============================================ */

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

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--charcoal);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--forest-green); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--earth-brown); }

h1, h2, h3, h4, h5 { font-family: var(--font-display); color: var(--earth-brown); line-height: 1.2; }
h1 { font-size: clamp(2.2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); }
h3 { font-size: 1.15rem; font-family: var(--font-body); font-weight: 600; }

/* ============================================
   Layout
   ============================================ */

.container { max-width: 1140px; margin: 0 auto; padding: 0 var(--space-xl); }
.container-narrow { max-width: 780px; }
.text-center { text-align: center; }

.section { padding: var(--space-4xl) 0; }
.section-sand { background: var(--sand); }
.section-dark { background: var(--earth-brown); }
.section-header { margin-bottom: var(--space-3xl); }
.section-subtitle { color: var(--dark-gray); font-size: 1.1rem; max-width: 640px; margin: var(--space-lg) auto 0; }

/* ============================================
   Navigation
   ============================================ */

.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,248,231,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(93,64,55,0.08);
  transition: box-shadow 0.3s;
}
.nav.scrolled { box-shadow: var(--shadow-md); }

.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}

.nav-logo { display: flex; align-items: center; gap: var(--space-sm); font-weight: 700; font-size: 1.15rem; color: var(--earth-brown); }
.nav-logo-icon { font-size: 1.5rem; }

.nav-links { display: flex; align-items: center; gap: var(--space-xl); }
.nav-links a { color: var(--dark-gray); font-size: 0.95rem; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--earth-brown); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: var(--space-sm); }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--earth-brown); margin: 5px 0; transition: 0.3s; }

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-weight: 600; font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer; transition: all 0.2s;
  text-decoration: none;
}

.btn-primary { background: var(--forest-green); color: var(--white); }
.btn-primary:hover { background: #4a7a28; color: var(--white); }

.btn-outline { background: transparent; border-color: var(--earth-brown); color: var(--earth-brown); }
.btn-outline:hover { background: var(--earth-brown); color: var(--cream); }

.btn-sm { padding: var(--space-sm) var(--space-lg); font-size: 0.85rem; }
.btn-lg { padding: var(--space-lg) var(--space-2xl); font-size: 1rem; }
.btn-block { width: 100%; }

/* ============================================
   Hero
   ============================================ */

.hero {
  padding: calc(64px + var(--space-4xl)) 0 var(--space-4xl);
  background: linear-gradient(180deg, var(--cream) 0%, var(--sand) 100%);
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-lg);
  background: rgba(85,139,47,0.12);
  color: var(--forest-green);
  border-radius: var(--radius-full);
  font-size: 0.85rem; font-weight: 600;
  margin-bottom: var(--space-xl);
}

.hero h1 { margin-bottom: var(--space-xl); }
.text-green { color: var(--forest-green); }
.text-cream { color: var(--cream); }
.text-cream-muted { color: rgba(255,248,231,0.7); }

.hero-subtitle {
  font-size: 1.2rem; color: var(--dark-gray);
  max-width: 600px; margin: 0 auto var(--space-2xl);
  line-height: 1.7;
}

.hero-cta { display: flex; gap: var(--space-lg); justify-content: center; flex-wrap: wrap; margin-bottom: var(--space-3xl); }

.hero-stats {
  display: flex; justify-content: center; gap: var(--space-3xl); flex-wrap: wrap;
  padding-top: var(--space-2xl);
  border-top: 1px solid rgba(93,64,55,0.1);
}
.stat { text-align: center; }
.stat-value { display: block; font-size: 1.8rem; font-weight: 700; color: var(--earth-brown); font-family: var(--font-display); }
.stat-label { font-size: 0.85rem; color: var(--medium-gray); }

/* ============================================
   Value Props
   ============================================ */

.value-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-xl); }
.value-card {
  background: var(--white);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-low);
  transition: transform 0.2s, box-shadow 0.2s;
}
.value-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.value-icon {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}
.value-card h3 { margin-bottom: var(--space-sm); }
.value-card p { font-size: 0.95rem; color: var(--dark-gray); }

/* ============================================
   Features Grid
   ============================================ */

.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--space-xl); }
.feature-card {
  background: var(--white);
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-low);
  border: 1px solid rgba(93,64,55,0.06);
  transition: transform 0.2s, box-shadow 0.2s;
}
.feature-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.feature-icon { font-size: 2rem; margin-bottom: var(--space-lg); }
.fc-green { color: var(--forest-green); }
.fc-amber { color: var(--harvest-amber); }
.fc-blue { color: var(--sky-blue); }
.fc-brown { color: var(--earth-brown); }
.fc-terra { color: var(--terracotta); }

.feature-card h3 { margin-bottom: var(--space-sm); }
.feature-card p { font-size: 0.93rem; color: var(--dark-gray); line-height: 1.6; }

/* ============================================
   Species Grid
   ============================================ */

.species-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: var(--space-lg); }
.species-card {
  background: var(--white);
  padding: var(--space-xl) var(--space-lg);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-low);
  border-bottom: 3px solid var(--species-color, var(--earth-brown));
  transition: transform 0.2s;
}
.species-card:hover { transform: translateY(-3px); }
.species-emoji { font-size: 2.5rem; margin-bottom: var(--space-sm); }
.species-card h3 { margin-bottom: var(--space-xs); font-size: 1rem; }
.species-card p { font-size: 0.82rem; color: var(--medium-gray); }

/* ============================================
   Pricing
   ============================================ */

.pricing-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--space-xl);
  align-items: start;
}
.pricing-card {
  background: var(--white);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-low);
  border: 1px solid rgba(93,64,55,0.08);
  position: relative;
}
.pricing-card-featured {
  border: 2px solid var(--forest-green);
  box-shadow: var(--shadow-high);
  transform: scale(1.03);
}
.pricing-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--forest-green); color: var(--white);
  padding: var(--space-xs) var(--space-lg);
  border-radius: var(--radius-full);
  font-size: 0.8rem; font-weight: 600;
}
.pricing-tier { font-size: 1.1rem; font-weight: 600; color: var(--earth-brown); margin-bottom: var(--space-sm); }
.pricing-price { font-size: 2.4rem; font-weight: 700; color: var(--earth-brown); font-family: var(--font-display); }
.pricing-price span { font-size: 1rem; font-weight: 400; color: var(--medium-gray); }
.pricing-period { font-size: 0.85rem; color: var(--medium-gray); margin-bottom: var(--space-xl); }

.pricing-features { list-style: none; margin-bottom: var(--space-xl); }
.pricing-features li {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(93,64,55,0.06);
  font-size: 0.93rem; color: var(--dark-gray);
  padding-left: 24px;
  position: relative;
}
.pricing-features li::before {
  content: '\2713'; position: absolute; left: 0;
  color: var(--forest-green); font-weight: 700;
}
.pricing-note { margin-top: var(--space-2xl); font-size: 0.93rem; color: var(--dark-gray); }

/* ============================================
   FAQ
   ============================================ */

.faq-list { display: flex; flex-direction: column; gap: var(--space-md); }
.faq-item {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-low);
  overflow: hidden;
}
.faq-item summary {
  padding: var(--space-lg) var(--space-xl);
  font-weight: 600; font-size: 1rem;
  color: var(--earth-brown);
  cursor: pointer; list-style: none;
  display: flex; align-items: center; justify-content: space-between;
}
.faq-item summary::after { content: '+'; font-size: 1.4rem; color: var(--medium-gray); transition: transform 0.2s; }
.faq-item[open] summary::after { content: '\2212'; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item p { padding: 0 var(--space-xl) var(--space-lg); font-size: 0.95rem; color: var(--dark-gray); line-height: 1.7; }

/* ============================================
   Beta Form
   ============================================ */

.beta-form { margin: var(--space-2xl) auto 0; max-width: 500px; }
.beta-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); margin-bottom: var(--space-md); }

.beta-input {
  width: 100%; padding: var(--space-md) var(--space-lg);
  border: 1px solid rgba(255,248,231,0.2);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.1);
  color: var(--cream);
  font-family: var(--font-body); font-size: 0.95rem;
  transition: border-color 0.2s;
}
.beta-input::placeholder { color: rgba(255,248,231,0.45); }
.beta-input:focus { outline: none; border-color: var(--harvest-amber); }
.beta-input option { color: var(--charcoal); background: var(--white); }

/* Honeypot — off-screen, never focused by keyboard or visible to users. */
.beta-honeypot {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Consent checkbox — required before submit, records explicit opt-in. */
.beta-consent {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
  margin-bottom: var(--space-md);
  color: rgba(255,248,231,0.8);
  font-size: 0.9rem;
  text-align: left;
}
.beta-consent input[type="checkbox"] { margin-top: 4px; flex: 0 0 auto; }
.beta-consent a { color: var(--harvest-amber); text-decoration: underline; }

/* Beta success state */
.beta-success { text-align: center; padding: var(--space-2xl) 0; }
.beta-success-icon { font-size: 3rem; margin-bottom: var(--space-lg); }
.beta-success h3 { color: var(--cream); font-family: var(--font-display); margin-bottom: var(--space-sm); }
.beta-success p { color: rgba(255,248,231,0.7); }

/* Hide reCAPTCHA badge (we disclose in footer per Google's TOS) */
.grecaptcha-badge { visibility: hidden !important; }

.store-badges { margin-top: var(--space-2xl); }
.store-badges-label { font-size: 0.85rem; color: rgba(255,248,231,0.5); margin-bottom: var(--space-md); }
.store-badges-row { display: flex; justify-content: center; gap: var(--space-lg); }
.store-badge {
  display: inline-flex; align-items: center; gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border: 1px solid rgba(255,248,231,0.2);
  border-radius: var(--radius-sm);
  color: rgba(255,248,231,0.6);
  font-size: 0.85rem; font-weight: 500;
}

/* ============================================
   Footer
   ============================================ */

.footer {
  background: var(--charcoal);
  color: rgba(255,248,231,0.7);
  padding: var(--space-3xl) 0 var(--space-xl);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-2xl); margin-bottom: var(--space-2xl); }
.footer-tagline { font-size: 0.9rem; margin-top: var(--space-sm); }
.footer-links h4 { color: var(--cream); font-family: var(--font-body); font-size: 0.9rem; font-weight: 600; margin-bottom: var(--space-md); }
.footer-links a { display: block; color: rgba(255,248,231,0.6); font-size: 0.9rem; margin-bottom: var(--space-sm); }
.footer-links a:hover { color: var(--cream); }
.footer-bottom { border-top: 1px solid rgba(255,248,231,0.1); padding-top: var(--space-xl); font-size: 0.85rem; text-align: center; }
.recaptcha-disclosure { font-size: 0.75rem; color: rgba(255,248,231,0.35); margin-top: var(--space-sm); }
.recaptcha-disclosure a { color: rgba(255,248,231,0.45); }
.footer .nav-logo { color: var(--cream); }

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--cream); flex-direction: column; padding: var(--space-xl); gap: var(--space-lg); box-shadow: var(--shadow-high); }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }

  .hero-stats { gap: var(--space-xl); }
  .stat-value { font-size: 1.4rem; }

  .beta-form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-xl); }

  .pricing-card-featured { transform: none; }
  .hero { padding-top: calc(64px + var(--space-2xl)); }

  .species-grid { grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--space-lg); }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; align-items: center; }
  .store-badges-row { flex-direction: column; align-items: center; }
}