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

body {
    font-family: 'Segoe UI', sans-serif;
    background: #f4f7fb;
    color: #333;
    line-height: 1.6;
}

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

.main-header {
    background: linear-gradient(90deg, #0f2027, #203a43, #2c5364);
    padding: 20px 0;
    color: white;
}

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

.logo {
    font-size: 24px;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

.main-nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: 0.3s;
}

.main-nav a:hover {
    color: #00d4ff;
}

.hero {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('https://picsum.photos/1600/600');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 120px 0;
    text-align: center;
}

.hero h2 {
    font-size: 40px;
    margin-bottom: 20px;
}

.section {
    padding: 80px 0;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.card {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-10px);
}

.btn {
    display: inline-block;
    padding: 12px 25px;
    background: #00bcd4;
    color: white;
    border-radius: 30px;
    text-decoration: none;
    margin-top: 20px;
    transition: 0.3s;
}

.btn:hover {
    background: #0097a7;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 30px;
}

.contact-form input,
.contact-form textarea {
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #ccc;
}

.success {
    background: #d4edda;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    color: #155724;
}

.main-footer {
    background: #0f2027;
    color: white;
    text-align: center;
    padding: 30px 0;
    margin-top: 60px;
}