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

body {
  line-height: 1.6;
  color: #222;
}

/* COMMON */
.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

.section {
  padding: 60px 0;
}

.section.alt {
  background: #f5f5f5;
}

h3 {
  margin-bottom: 30px;
  font-size: 28px;
  text-align: center;
}

/* HEADER */
.header {
  background: #0b1c2d;
  color: #fff;
  padding: 15px 0;
}

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

.logo {
  font-size: 26px;
}

.logo span {
  color: #f4c430;
}

nav a {
  color: #fff;
  margin-left: 20px;
  text-decoration: none;
  font-weight: bold;
}

nav a:hover {
  color: #f4c430;
}

/* HERO */
.hero {
  background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)),
              url("https://images.unsplash.com/photo-1596495577886-d920f1fb7238");
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: 100px 0;
  text-align: center;
}

.hero h2 {
  font-size: 42px;
  margin-bottom: 20px;
}

.hero p {
  font-size: 18px;
  margin-bottom: 30px;
}

/* BUTTON */
.btn-primary {
  background: #f4c430;
  color: #000;
  padding: 12px 30px;
  text-decoration: none;
  font-weight: bold;
  border-radius: 4px;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: #d9ab24;
}

/* GRID */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.card {
  background: #fff;
  padding: 25px;
  border-left: 5px solid #f4c430;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  font-weight: bold;
  text-align: center;
}

/* LIST */
.list {
  max-width: 700px;
  margin: auto;
}

.list li {
  margin-bottom: 15px;
  font-size: 18px;
}

/* CONTACT */
.contact-form {
  max-width: 500px;
  margin: 30px auto 0;
  display: flex;
  flex-direction: column;
}

.contact-form input,
.contact-form textarea {
  padding: 12px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

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

/* FOOTER */
.footer {
  background: #0b1c2d;
  color: #fff;
  text-align: center;
  padding: 20px 0;
  font-size: 14px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero h2 {
    font-size: 32px;
  }
}