* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.7;
  color: #333;
  background: #f9f9f9;
}
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}
/* ── HEADER ── */
header {
  background: #004080;
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 3px 12px rgba(0,0,0,0.2);
}
.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
}
.logo h1 {
  font-size: 2rem;
}
.logo span {
  color: #ffcc00;
}
nav ul {
  display: flex;
  list-style: none;
  gap: 28px;
}
nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  transition: 0.3s;
}
nav a:hover {
  color: #ffcc00;
}
.menu-btn {
  display: none;
  font-size: 2rem;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
}
/* ── HERO ── */
.hero {
  background: linear-gradient(rgba(0,0,0,.3), rgba(0,0,0,.3)),
              url("../images/main2.jpg") center/cover no-repeat;
  color: #fff;
  text-align: center;
  min-height: 100vh;
  display: flex;
  align-items: center;
}
.hero h1 {
  font-size: 3.2rem;
  margin-bottom: .8rem;
}
.hero p {
  font-size: 1.35rem;
  max-width: 780px;
  margin: 0 auto 1.8rem;
}
.btn {
  display: inline-block;
  background: #ffcc00;
  color: #003366;
  padding: 16px 38px;
  font-weight: bold;
  text-decoration: none;
  border-radius: 50px;
  transition: .3s;
}
.btn:hover {
  background: #ffdb33;
  transform: translateY(-3px);
}
/* ── SECTIONS ── */
section {
  padding: 90px 0;
}
h2 {
  text-align: center;
  font-size: 2.6rem;
  color: #004080;
  margin-bottom: 50px;
  position: relative;
}
h2::after {
  content: '';
  width: 80px;
  height: 4px;
  background: #ffcc00;
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
}
/* ── GRID ── */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.card {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 6px 18px rgba(0,0,0,.08);
  transition: .3s;
  text-align: center;
}
.card:hover {
  transform: translateY(-10px);
}
.card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}
.card-body {
  padding: 24px;
}
.card h3 {
  color: #004080;
  margin-bottom: 12px;
}
/* ── ABOUT ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
.about-grid img {
  width: 100%;
  border-radius: 10px;
}
/* ── FORM ── */
form {
  max-width: 620px;
  margin: 0 auto;
  display: grid;
  gap: 18px;
}
input, textarea {
  padding: 14px 18px;
  border: 1px solid #ccc;
  border-radius: 6px;
}
textarea {
  min-height: 150px;
}
form .btn {
  background: #004080;
  color: #fff;
  border: none;
  cursor: pointer;
}
/* ── FOOTER ── */
footer {
  background: #003366;
  color: #e0f0ff;
  padding: 70px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
  margin-bottom: 50px;
}
footer a {
  color: #b3d4ff;
  text-decoration: none;
}
footer a:hover {
  color: #ffcc00;
}
.copyright {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid #1a4d80;
  font-size: .95rem;
}
/* ── RESPONSIVE ── */
@media (max-width: 992px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .menu-btn {
    display: block;
  }

  nav {
    position: relative;
  }

  nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #004080;
    flex-direction: column;
    padding: 20px;
    gap: 20px;
    z-index: 9999;
  }

  nav ul.active {
    display: flex;
  }
}

@media (max-width: 600px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
  section {
    padding: 60px 0;
  }
  h2 {
    font-size: 2rem;
  }
  .logo h1 {
    font-size: 1.4rem;
  }
  .btn {
    padding: 14px 26px;
    font-size: .95rem;
  }
}