/* --- Global Reset & Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;700;900&display=swap');

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: #f4f7f9;
  color: #2c3e50;
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  width: 100%;
}

/* --- Header & Navigation --- */
header {
  background: #004b6b;
  padding: 1.5rem 0;
  position: relative;
  z-index: 1000;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.nav-links {
  display: flex;
  justify-content: center;
  list-style: none;
  gap: 2rem;
  margin-top: 1rem;
}

.nav-links a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 400;
  font-size: 0.9rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: 0.3s;
}

.nav-links a:hover {
  color: #00d9e7;
  text-shadow: 0 0 10px rgba(0, 217, 231, 0.5);
}

/* --- Hero Section Fix --- */
.hero {
  background: #004b6b; /* Fallback */
  background: linear-gradient(rgba(0, 75, 107, 0.7), rgba(0, 75, 107, 0.9)), url('../images/7.jpg') center/cover;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
}

.hero-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  padding: 3rem 2rem;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  max-width: 900px;
  color: white;
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.hero-card img {
  max-width: 300px;
  margin-bottom: 20px;
}

.hero-card h1 {
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 1rem;
  text-transform: uppercase;
  line-height: 1.2;
}

/* --- Buttons --- */
.btn-main {
  background: #00d9e7;
  color: #00405b;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  display: inline-block;
  margin-top: 20px;
  transition: 0.3s ease;
  box-shadow: 0 10px 20px rgba(0, 217, 231, 0.3);
}

.btn-main:hover {
  background: #fff;
  transform: translateY(-3px);
  box-shadow: 0 15px 30px rgba(0, 217, 231, 0.5);
}

/* --- Features Grid --- */
.section-title {
  text-align: center;
  font-size: 2rem;
  color: #004b6b;
  margin: 4rem 0 2rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto 5rem;
  padding: 0 20px;
}

.feature-card {
  background: #ffffff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  transition: 0.3s;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.feature-card h4 {
  background: #004b6b;
  color: white;
  padding: 1.5rem;
  text-align: center;
  font-size: 1.2rem;
  font-weight: 700;
}

.feature-content {
  padding: 2rem;
  flex-grow: 1;
}

.feature-content ul {
  list-style: none;
  margin-top: 10px;
}

.feature-content li {
  margin-bottom: 8px;
  padding-left: 20px;
  position: relative;
}

.feature-content li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #00d9e7;
  font-weight: bold;
}

/* --- WhatsApp --- */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  left: 30px;
  z-index: 9999;
}

/* --- Mobile Responsiveness --- */
@media (max-width: 768px) {
  .nav-links {
    display: none; /* Hide desktop nav on mobile */
  }
  .hero-card h1 {
    font-size: 1.8rem;
  }
}