/* Design tokens */
:root {
  --bg: #F8FAFC;
  --text: #1E293B;
  --text-muted: #64748B;
  --accent: #3B82F6;
  --accent-dark: #1E40AF;
  --mntr-bg: #EFF6FF;
  --mntr-accent: #2563EB;
  --hilights-bg: #F5F3FF;
  --hilights-accent: #7C3AED;
  --white: #FFFFFF;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --radius: 12px;
  --radius-sm: 8px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* Header */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: var(--text);
  text-decoration: none;
  font-size: 0.9375rem;
}

.nav-link:hover {
  color: var(--accent);
}

.btn {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: background 0.2s;
}

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

.btn-primary:hover {
  background: #1e3a8a;
}

/* Sections */
.section {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section-heading {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 2rem;
  max-width: 600px;
}

.section-heading-centered {
  text-align: center;
  max-width: none;
  margin-left: auto;
  margin-right: auto;
}

/* About section */
.section-about {
  padding-top: 3rem;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-text p {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: 1rem;
}

.feature-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.feature-card {
  background: var(--white);
  padding: 1.25rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(59, 130, 246, 0.1);
}

.feature-icon {
  display: block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  margin-bottom: 0.75rem;
}

.feature-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 600;
}

.feature-card p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Products section */
.section-products {
  padding-top: 5rem;
}

.product-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.product-card {
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.product-card-mntr {
  background: var(--mntr-bg);
  border: 1px solid rgba(37, 99, 235, 0.15);
}

.product-card-hilights {
  background: var(--hilights-bg);
  border: 1px solid rgba(124, 58, 237, 0.15);
}

.product-header {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.product-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.product-icon-mntr {
  background: var(--mntr-accent);
  opacity: 0.9;
}

.product-icon-hilights {
  background: var(--hilights-accent);
  opacity: 0.9;
}

.product-name {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
}

.product-card-mntr .product-name {
  color: var(--mntr-accent);
}

.product-card-hilights .product-name {
  color: var(--hilights-accent);
}

.product-badge {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.product-tagline {
  margin: 0 0 1rem;
  font-size: 1.125rem;
  font-weight: 600;
}

.product-description {
  margin: 0 0 1.25rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.product-features {
  margin: 0;
  padding: 0;
  list-style: none;
}

.product-features li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.product-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.product-card-mntr .product-features li::before {
  background: var(--mntr-accent);
}

.product-card-hilights .product-features li::before {
  background: var(--hilights-accent);
}

/* Contact section */
.section-contact {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

.contact-intro {
  text-align: center;
  max-width: 500px;
  margin: 0 auto 2.5rem;
  color: var(--text-muted);
  font-size: 1rem;
}

.contact-form {
  max-width: 560px;
  margin: 0 auto;
  background: var(--white);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--text);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #94A3B8;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-feedback {
  margin-bottom: 1rem;
  font-size: 0.9375rem;
  min-height: 1.5em;
}

.form-feedback.success {
  color: #059669;
}

.form-feedback.error {
  color: #DC2626;
}

.btn-submit {
  width: 100%;
  padding: 0.875rem 1.5rem;
  background: var(--accent-dark);
  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.btn-submit:hover {
  background: #1e3a8a;
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Footer */
.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid #E2E8F0;
}

.footer .logo {
  font-size: 1rem;
}

.copyright {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-nav {
  display: flex;
  gap: 1.5rem;
}

.footer-link {
  font-size: 0.875rem;
  color: var(--accent);
  text-decoration: none;
}

.footer-link:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
  .header {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .nav {
    width: 100%;
    justify-content: flex-end;
    gap: 1rem;
  }

  .about-content {
    grid-template-columns: 1fr;
  }

  .feature-cards {
    grid-template-columns: 1fr;
  }

  .product-cards {
    grid-template-columns: 1fr;
  }

  .footer {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

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

@media (max-width: 480px) {
  .section {
    padding: 3rem 1.25rem;
  }

  .header,
  .footer {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .contact-form {
    padding: 1.5rem;
  }
}