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

body {
  color: #333;
  background: #fff;
  line-height: 1.6;
}

/* Header */
header {
  background: #23AEB1;
  color: #fff;
  padding: 15px 0;
}

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

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

.logo {
  font-size: 1.8rem;
  font-weight: 700;
}

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

nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  transition: 0.3s;
}

nav a:hover, nav a.active {
  text-decoration: underline;
}

/* Hero */
.hero, .about-hero, .contact-hero {
  background: url('https://images.unsplash.com/photo-1521737604893-d14cc237f11d?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
  color: #fff;
  text-align: center;
  padding: 100px 20px;
}

.hero-content {
  background: rgba(0,0,0,0.5);
  display: inline-block;
  padding: 40px 60px;
  border-radius: 12px;
}

.btn {
  background: #fff;
  color: #23AEB1;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 600;
  display: inline-block;
  margin-top: 15px;
  transition: 0.3s;
}

.btn:hover {
  background: #23AEB1;
  color: #fff;
}

/* Features */
.features {
  padding: 60px 0;
  text-align: center;
}

.features h2 {
  margin-bottom: 30px;
  color: #23AEB1;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  background: #f9f9f9;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: 0.3s;
}

.card:hover {
  transform: translateY(-5px);
}

/* Why Us */
.why-us {
  background: #23AEB1;
  color: #fff;
  padding: 60px 20px;
  text-align: center;
}

.why-us ul {
  list-style: none;
  margin-top: 20px;
}

.why-us li {
  margin: 10px 0;
}

/* About Page */
.about-content {
  padding: 60px 0;
}

.about-content h3 {
  color: #23AEB1;
  margin: 20px 0 10px;
}

/* Contact */
.contact-form-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
  padding: 60px 0;
}

.contact-info p {
  margin: 10px 0;
}

.contact-form input, .contact-form textarea {
  width: 100%;
  margin-bottom: 15px;
  padding: 10px;
  border-radius: 6px;
  border: 1px solid #ccc;
}

.contact-form button {
  background: #23AEB1;
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
}

.contact-form button:hover {
  opacity: 0.9;
}

/* Footer */
footer {
  background: #222;
  color: #fff;
  text-align: center;
  padding: 20px 10px;
  font-size: 0.9rem;
}

footer a {
  color: #23AEB1;
  text-decoration: none;
}

/* Responsive */
@media (max-width: 768px) {
  .nav ul {
    flex-direction: column;
    gap: 10px;
  }
  .hero-content {
    padding: 30px;
  }
}

/* About Hero Section */
.about-hero, .contact-hero {
  background: url('https://images.unsplash.com/photo-1521737604893-d14cc237f11d?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
  position: relative;
  height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.about-hero-overlay {
  background: rgba(0, 0, 0, 0.6);
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-hero-content {
  text-align: center;
  padding: 20px;
}

.about-hero-content h2 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  letter-spacing: 1px;
  animation: fadeInDown 1s ease;
}

.about-hero-content p {
  font-size: 1.1rem;
  opacity: 0.9;
  animation: fadeInUp 1.2s ease;
}

/* About Content Section */
.about-content {
  padding: 80px 0;
  text-align: center;
}

.about-intro {
  max-width: 800px;
  margin: 0 auto 60px;
}

.about-intro h3 {
  color: #23AEB1;
  margin-bottom: 15px;
}

.about-intro p {
  font-size: 1.05rem;
  color: #555;
  line-height: 1.8;
}

/* Mission & Vision Cards */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  margin-bottom: 60px;
}

.about-card {
  background: #f9f9f9;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.about-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
}

.about-card h3 {
  color: #23AEB1;
  margin-bottom: 15px;
}

.about-card p {
  color: #555;
  line-height: 1.6;
}

/* Values Section */
.about-values {
  background: #f1fbfb;
  padding: 60px 40px;
  border-radius: 12px;
  max-width: 900px;
  margin: 0 auto;
  text-align: left;
}

.about-values h3 {
  text-align: center;
  color: #23AEB1;
  margin-bottom: 25px;
}

.about-values ul {
  list-style: none;
  line-height: 1.9;
}

.about-values li {
  margin-bottom: 10px;
  position: relative;
  padding-left: 20px;
}

.about-values li::before {
  content: "✔";
  color: #23AEB1;
  font-weight: bold;
  position: absolute;
  left: 0;
}

/* Animations */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.form-message {
  margin-bottom: 20px;
  padding: 15px;
  border-radius: 6px;
  font-weight: 500;
  text-align: center;
}

.form-message.success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.form-message.error {
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}