* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Montserrat', 'Helvetica Neue', Arial, sans-serif;
  color: #111;
  background: #fff;
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  z-index: 100;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: #111;
}

.navbar nav a {
  margin-left: 1.5rem;
  text-decoration: none;
  color: #111;
  font-weight: 600;
  transition: color 0.2s ease;
}

.navbar nav a:hover,
.navbar nav a:focus {
  color: #0070f3;
}

main { margin-top: 80px; }

/* Hero */
#hero {
  min-height: calc(100vh - 80px);
  background: url('https://images.unsplash.com/photo-1558611848-73f7eb4001e4?auto=format&fit=crop&w=1600&q=80')
    center / cover no-repeat;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 1rem;
}

#hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 0;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  color: #fff;
  max-width: 720px;
  padding: 0 1rem;
}

.hero-content h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  margin-bottom: 1rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

/* Buttons */
.cta {
  display: inline-block;
  padding: 0.85rem 2.5rem;
  border-radius: 999px;
  background: #0070f3;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.2s ease, transform 0.2s ease;
}

.cta:hover,
.cta:focus {
  background: #0057c2;
  transform: translateY(-2px);
}

/* Layout */
section { padding: 4rem 1.5rem; }

.container {
  max-width: 1024px;
  margin: 0 auto;
}

section h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  text-align: center;
}

section p {
  max-width: 720px;
  margin: 0.5rem auto 0;
  text-align: center;
}

/* Services */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}

.service-card {
  border: 1px solid #e5e5e5;
  border-radius: 12px;
  padding: 2rem 1.5rem;
  text-align: left;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card h3 {
  margin: 0 0 0.75rem 0;
}

.service-card p {
  margin: 0;
}

.service-card:hover,
.service-card:focus-within {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.08);
}

/* Contact */
#contact form {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-page .form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.contact-page .form-group input,
.contact-page .form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
}

#contact button {
  align-self: flex-start;
  padding: 0.85rem 2.5rem;
  border-radius: 999px;
  border: none;
  background: #111;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

#contact button:hover,
#contact button:focus {
  background: #333;
  transform: translateY(-2px);
}

/* Extra CTA section */
.cta-section { text-align: center; }
.cta-section .cta { margin-top: 2rem; }

/* Footer */
footer {
  padding: 2rem 1rem;
  background: #f5f5f5;
  font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 640px) {
  .navbar {
    flex-direction: column;
    gap: 0.75rem;
    padding: 1rem;
  }

  .navbar nav a { margin: 0 0.75rem; }

  main { margin-top: 120px; }

  section p { text-align: left; }
}