:root {
  --color-brand: #2e7d32;
  --color-brand-dark: #1b5e20;
  --color-background: #f9faf8;
  --color-border: #dce2d8;
  --color-text: #1f2a24;
  --font-heading: "Montserrat", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Source Sans Pro", "Segoe UI", Roboto, sans-serif;
}

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

html, body {
  height: 100%;
}

body {
  background: linear-gradient(135deg, #f5f9f5 0%, var(--color-background) 100%);
  color: var(--color-text);
  font-family: var(--font-body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  position: relative;
  overflow: hidden;
  background: linear-gradient(140deg, #6f9f77 0%, #4f7f60 52%, #3f6950 100%);
  color: white;
  padding: 4.5rem 2rem 4rem;
  min-height: 340px;
  text-align: center;
  box-shadow: 0 10px 26px rgba(31, 42, 36, 0.16);
}

header::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 12% 18%, rgba(255, 255, 255, 0.18), transparent 34%),
    radial-gradient(circle at 85% 15%, rgba(255, 255, 255, 0.14), transparent 28%);
  pointer-events: none;
}

header > * {
  position: relative;
}

.header-logo-badge {
  width: fit-content;
  margin: 0 auto 1.25rem;
  padding: 0.7rem 1.15rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 8px 22px rgba(18, 34, 26, 0.18);
  backdrop-filter: blur(6px);
}

.header-logo {
  width: 170px;
  max-width: min(58vw, 280px);
  height: auto;
  display: block;
}

header h1 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

header p {
  font-size: 1.1rem;
  opacity: 0.95;
  margin-bottom: 0.5rem;
}

.tagline {
  font-size: 0.95rem;
  opacity: 0.85;
  letter-spacing: 0.05em;
}

main {
  flex: 1;
  padding: 3rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.intro {
  text-align: center;
  margin-bottom: 3rem;
}

.intro h2 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--color-brand);
  margin-bottom: 1rem;
}

.intro p {
  font-size: 1rem;
  color: rgba(31, 42, 36, 0.75);
  line-height: 1.6;
  max-width: 600px;
  margin: 0 auto;
}

.manuals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.manual-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(31, 42, 36, 0.08);
  transition: all 0.3s ease;
  border: 2px solid transparent;
  display: flex;
  flex-direction: column;
}

.manual-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(31, 42, 36, 0.15);
  border-color: var(--color-brand);
}

.manual-header {
  background: linear-gradient(180deg, rgba(46, 125, 50, 0.1) 0%, rgba(46, 125, 50, 0.05) 100%);
  padding: 2rem;
  border-bottom: 2px solid var(--color-border);
}

.manual-header h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--color-brand);
  margin-bottom: 0.5rem;
}

.manual-specs {
  font-size: 0.9rem;
  color: rgba(31, 42, 36, 0.65);
  line-height: 1.6;
}

.manual-content {
  padding: 2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.manual-features {
  list-style: none;
  margin-bottom: 1.5rem;
  flex: 1;
}

.manual-features li {
  padding-left: 1.5rem;
  margin-bottom: 0.6rem;
  position: relative;
  font-size: 0.95rem;
  line-height: 1.5;
  color: rgba(31, 42, 36, 0.8);
}

.manual-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-brand);
  font-weight: bold;
}

.manual-footer {
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: 1rem;
}

.btn {
  flex: 1;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  line-height: 1.2;
  letter-spacing: 0.03em;
}

.btn-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

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

.btn-primary:hover {
  background: var(--color-brand-dark);
  transform: scale(1.02);
}

.btn-secondary {
  background: white;
  color: var(--color-brand);
  border: 2px solid var(--color-brand);
}

.btn-secondary:hover {
  background: rgba(46, 125, 50, 0.05);
}

footer {
  background: rgba(31, 42, 36, 0.05);
  padding: 2rem;
  text-align: center;
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

footer p {
  font-size: 0.9rem;
  color: rgba(31, 42, 36, 0.65);
}

footer a {
  color: var(--color-brand-dark);
  font-weight: 600;
  text-underline-offset: 3px;
}

.footer-copy {
  margin-top: 0.25rem;
}

.footer-contact {
  margin-top: 0.75rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.footer-icon {
  width: 15px;
  height: 15px;
  color: var(--color-brand);
  flex-shrink: 0;
}

.footer-hours {
  margin-top: 0.75rem;
  font-size: 0.85rem;
}

.logo-text {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-brand);
  margin: 0.5rem 0;
}

@media (max-width: 768px) {
  header {
    padding: 3.6rem 1rem 3rem;
    min-height: 300px;
  }

  .header-logo-badge {
    padding: 0.55rem 0.9rem;
    border-radius: 16px;
    margin-bottom: 1rem;
  }

  .header-logo {
    width: 138px;
    max-width: 62vw;
  }

  header h1 {
    font-size: 2rem;
  }

  main {
    padding: 2rem 1rem;
  }

  .manuals-grid {
    grid-template-columns: 1fr;
  }

  .intro h2 {
    font-size: 1.5rem;
  }

  footer {
    padding: 1.25rem 1rem;
  }

  .footer-contact {
    flex-direction: column;
    gap: 0.45rem;
    align-items: center;
  }

  .footer-item {
    justify-content: center;
  }

  .footer-icon {
    width: 16px;
    height: 16px;
  }

  .footer-copy,
  .footer-hours {
    font-size: 0.82rem;
  }

  footer p {
    line-height: 1.5;
  }
}