/* Base Reset & Variables */
:root {
  --color-cream: #F5E6D3;
  --color-dark-brown: #4A3728;
  --color-medium-brown: #8B6F5E;
  --color-light-brown: #C4A88B;
  --color-warm-white: #FFF9F2;
  --color-accent: #D4943A;
  --color-accent-dark: #B87A2A;
  --color-danger: #C44D34;
  --color-success: #4A7C59;
  --color-text: #2C2416;
  --color-text-light: #6B5E4F;
  --shadow-sm: 0 2px 8px rgba(74, 55, 40, 0.08);
  --shadow-md: 0 6px 20px rgba(74, 55, 40, 0.12);
  --shadow-lg: 0 12px 32px rgba(74, 55, 40, 0.15);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

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

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

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

.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  background: var(--color-cream);
  border-bottom: 1px solid rgba(74, 55, 40, 0.1);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-text {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-dark-brown);
  letter-spacing: -0.5px;
}

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

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

.site-nav a:hover {
  color: var(--color-accent-dark);
  border-bottom-color: var(--color-accent);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--color-cream) 0%, #E8D5BC 100%);
  padding: 64px 0 48px;
  text-align: center;
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-dark-brown);
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.8px;
}

.subtitle {
  font-size: 1.2rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
  font-weight: 400;
}

/* Calculator Section */
.calculator-section {
  padding: 48px 0;
}

.calculator-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(74, 55, 40, 0.06);
}

.calculator-card h2 {
  font-size: 1.8rem;
  color: var(--color-dark-brown);
  margin-bottom: 8px;
}

.calculator-intro {
  color: var(--color-text-light);
  margin-bottom: 28px;
  font-size: 1rem;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-dark-brown);
  font-size: 0.95rem;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #E0D3C5;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: var(--font-sans);
  background: var(--color-warm-white);
  transition: border-color 0.2s, box-shadow 0.2s;
  color: var(--color-text);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(212, 148, 58, 0.15);
}

.btn-primary {
  background: var(--color-accent);
  color: white;
  border: none;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  width: 100%;
  margin-top: 8px;
}

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

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

/* Results */
.results-panel {
  margin-top: 32px;
  padding-top: 28px;
  border-top: 2px solid #F0E6D8;
  animation: fadeIn 0.4s ease;
}

.results-panel.hidden {
  display: none;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.result-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.result-item {
  background: var(--color-warm-white);
  padding: 16px;
  border-radius: var(--radius-sm);
  text-align: center;
  border: 1px solid rgba(74, 55, 40, 0.08);
}

.result-label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--color-text-light);
  margin-bottom: 6px;
}

.result-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-dark-brown);
}

.result-value.highlight {
  color: var(--color-success);
}

.timeline-container h3 {
  font-size: 1.1rem;
  color: var(--color-dark-brown);
  margin-bottom: 16px;
}

.timeline {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.timeline-bar {
  flex: 1;
  min-width: 40px;
  background: #F0E6D8;
  border-radius: 6px;
  text-align: center;
  padding: 10px 4px;
  font-size: 0.75rem;
  position: relative;
  transition: background 0.3s;
}

.timeline-bar.active {
  background: var(--color-accent);
  color: white;
  font-weight: 600;
}

.timeline-bar.safe {
  background: var(--color-success);
  color: white;
  font-weight: 600;
}

.timeline-bar .bar-hour {
  display: block;
  font-weight: 700;
  font-size: 0.85rem;
}

.timeline-bar .bar-mg {
  display: block;
  font-size: 0.7rem;
  opacity: 0.9;
}

.results-note {
  font-size: 0.85rem;
  color: var(--color-text-light);
  font-style: italic;
}

/* Info Section */
.info-section {
  padding: 64px 0;
  background: var(--color-cream);
}

.info-section h2 {
  text-align: center;
  font-size: 2rem;
  color: var(--color-dark-brown);
  margin-bottom: 40px;
}

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

.info-card {
  background: white;
  padding: 28px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.info-card h3 {
  font-size: 1.2rem;
  color: var(--color-dark-brown);
  margin-bottom: 12px;
}

.info-card p {
  color: var(--color-text-light);
  line-height: 1.7;
}

/* Tips Section */
.tips-section {
  padding: 64px 0;
}

.tips-section h2 {
  text-align: center;
  font-size: 2rem;
  color: var(--color-dark-brown);
  margin-bottom: 40px;
}

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

.tip-card {
  background: white;
  padding: 28px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-accent);
  position: relative;
}

.tip-number {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 2rem;
  font-weight: 800;
  color: rgba(212, 148, 58, 0.15);
  line-height: 1;
}

.tip-card h3 {
  font-size: 1.1rem;
  color: var(--color-dark-brown);
  margin-bottom: 10px;
  padding-right: 40px;
}

.tip-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Disclaimer */
.disclaimer-section {
  padding: 48px 0;
  background: #FFF5E8;
  text-align: center;
}

.disclaimer-section h2 {
  font-size: 1.5rem;
  color: var(--color-dark-brown);
  margin-bottom: 16px;
}

.disclaimer-section p {
  max-width: 700px;
  margin: 0 auto;
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Footer */
.site-footer {
  background: var(--color-dark-brown);
  color: var(--color-cream);
  padding: 28px 0;
  margin-top: auto;
}

.site-footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.site-footer p {
  font-size: 0.9rem;
  opacity: 0.8;
}

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

.footer-nav a {
  color: var(--color-cream);
  text-decoration: none;
  font-size: 0.9rem;
  opacity: 0.8;
  transition: opacity 0.2s;
}

.footer-nav a:hover {
  opacity: 1;
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }
  .subtitle {
    font-size: 1rem;
  }
  .calculator-card {
    padding: 24px;
  }
  .result-summary {
    grid-template-columns: 1fr;
  }
  .timeline {
    gap: 4px;
  }
  .timeline-bar {
    min-width: 32px;
    font-size: 0.7rem;
  }
  .site-nav {
    gap: 12px;
  }
  .site-nav a {
    font-size: 0.85rem;
  }
  .site-footer .container {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 40px 0 32px;
  }
  .hero h1 {
    font-size: 1.6rem;
  }
  .info-grid,
  .tips-grid {
    grid-template-columns: 1fr;
  }
  .logo-text {
    font-size: 1.2rem;
  }
}



/* 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;
}

.site-utility-links {
  width: min(900px, calc(100% - 32px));
  margin: 32px auto;
  padding-top: 16px;
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(127, 127, 127, 0.25);
  font-size: 0.9rem;
}

.site-utility-links a {
  color: inherit;
  opacity: 0.75;
}