/* ===== Base ===== */
body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: #0a0f1a;
  color: #e5e7eb;
  line-height: 1.6;
}

h1, h2, h3 {
  color: #00b4d8;
  font-weight: 700;
  margin-bottom: 15px;
}

p {
  color: #cfd4da;
  margin-bottom: 15px;
}

section {
  padding: 70px 20px;
  max-width: 1100px;
  margin: auto;
}

.alt {
  background: #0d1726;
  border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

/* ===== Navigation ===== */
nav {
  background: #091422;
  padding: 15px 0;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

nav .logo {
  color: #00b4d8;
  font-weight: 700;
  letter-spacing: 1px;
  font-size: 1.2rem;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 25px;
  margin: 0;
  padding: 0;
}

nav a {
  color: #e5e7eb;
  text-decoration: none;
  font-weight: 500;
  transition: 0.2s;
}

nav a:hover {
  color: #00b4d8;
}

/* ===== Hero ===== */
.hero {
  height: 70vh;
  background: radial-gradient(circle at top right, #00b4d8 0%, #030b16 60%);
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 20px;
}

.hero-content h1 {
  font-size: 2.8rem;
  margin-bottom: 0.5rem;
}

.hero-content p {
  font-size: 1.1rem;
  color: #a8b3c3;
  margin-bottom: 1.5rem;
}

.btn {
  display: inline-block;
  background: #00b4d8;
  color: #0a0f1a;
  padding: 10px 25px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  transition: 0.3s;
}

.btn:hover {
  background: #48cae4;
}

/* ===== Cards & Grid ===== */
.grid {
  display: grid;
  gap: 25px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  background: #111b2b;
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 0 10px rgba(0, 180, 216, 0.15);
  transition: 0.3s;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 0 15px rgba(0, 180, 216, 0.3);
}

.card h3 {
  color: #48cae4;
  margin-bottom: 10px;
}

.price .amount {
  color: #00b4d8;
  font-size: 1.8rem;
  font-weight: 700;
}

.highlight {
  border: 1px solid #00b4d8;
  box-shadow: 0 0 15px rgba(0,180,216,0.3);
}

/* ===== Contact ===== */
.contact-form {
  background: #111b2b;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(0,180,216,0.15);
  max-width: 500px;
  margin: 30px auto 0;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  background: #0a1320;
  border: 1px solid #1d2a3a;
  border-radius: 6px;
  color: #e5e7eb;
  padding: 10px;
  margin-bottom: 12px;
  font-family: inherit;
  font-size: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: #00b4d8;
  outline: none;
  box-shadow: 0 0 8px rgba(0,180,216,0.4);
}

.contact-form button {
  background: #00b4d8;
  border: none;
  color: #0a0f1a;
  padding: 10px 25px;
  border-radius: 30px;
  cursor: pointer;
  font-weight: 600;
  transition: 0.3s;
}

.contact-form button:hover {
  background: #48cae4;
}

/* ===== Footer ===== */
footer {
  background: #091422;
  text-align: center;
  color: #a8b3c3;
  padding: 20px 10px;
  font-size: 0.9rem;
  margin-top: 50px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 2rem;
  }

  nav {
    flex-direction: column;
    gap: 10px;
  }

  nav ul {
    flex-wrap: wrap;
    justify-content: center;
  }
}