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

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

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

/* HEADER */
.header {
  position: sticky;
  top: 0;
  background: white;
  border-bottom: 1px solid #eee;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-box {
  width: 30px;
  height: 30px;
  background: #b30000;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* NAV */
nav {
  display: flex;
  gap: 15px;
}

nav a {
  text-decoration: none;
  color: #333;
}

/* HERO */
.hero {
  background: linear-gradient(rgba(179,0,0,0.85), rgba(179,0,0,0.85)),
              url('https://images.unsplash.com/photo-1584515933487-779824d29309') center/cover;
  color: white;
  padding: 120px 0;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
}

.btn {
  display: inline-block;
  margin-top: 20px;
  padding: 10px 20px;
  background: white;
  color: #b30000;
  text-decoration: none;
  font-weight: bold;
  border-radius: 5px;
}

/* SECTIONS */
.section {
  padding: 70px 0;
}

.section.alt {
  background: #f7f7f7;
}

/* GRID */
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

/* CARD */
.card {
  background: white;
  padding: 20px;
  border-radius: 10px;
  border: 1px solid #eee;
}

/* FOOTER */
.footer {
  background: #111;
  color: white;
  padding: 20px 0;
  text-align: center;
}

/* MOBILE */
.menu-btn {
  display: none;
}

@media (max-width: 768px) {
  nav {
    display: none;
  }

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