* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
}

body {
  line-height: 1.6;
  color: #0f172a;
}

/* LAYOUT */
.container {
  max-width: 1100px;
  margin: auto;
  padding: 0 20px;
}

.container.narrow {
  max-width: 700px;
}

.center-text {
  text-align: center;
}

/* HERO */
.hero {
  background: linear-gradient(rgba(0,0,0,.55), rgba(0,0,0,.55)),
              url("https://images.unsplash.com/photo-1560518883-ce09059eeffa") center/cover;
  padding: 120px 0;
  text-align: center;
  color: white;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.2rem;
  margin-bottom: 35px;
}

/* BUTTON */
.btn-primary {
  background: #1d4ed8;
  color: #fff;
  padding: 14px 36px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: #1e40af;
}

/* SECTIONS */
.section {
  padding: 80px 0;
}

.section.light {
  background: #f8fafc;
}

.section.dark {
  background: #0f172a;
  color: #e5e7eb;
}

.section h2 {
  text-align: center;
  font-size: 2.1rem;
  margin-bottom: 40px;
}

/* GRID / CARDS */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 25px;
}

.card {
  background: white;
  padding: 30px;
  text-align: center;
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(0,0,0,.08);
}

.section.dark .card {
  background: #020617;
}

/* LIST */
.why-list {
  list-style: none;
}

.why-list li {
  margin-bottom: 18px;
  padding-left: 28px;
  position: relative;
}

.why-list li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: #3b82f6;
}

/* CTA */
.cta {
  background: #1d4ed8;
  color: white;
  text-align: center;
}

.contact-form {
  margin-top: 30px;
  display: grid;
  gap: 15px;
}

.contact-form input,
.contact-form textarea {
  padding: 12px 14px;
  border-radius: 6px;
  border: none;
}

.contact-form textarea {
  min-height: 120px;
}

/* FOOTER */
footer {
  background: #020617;
  color: #9ca3af;
  padding: 30px 0;
  text-align: center;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.2rem;
  }
}
``