body {
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    color: #1e1e2f;
    background: #f0f2f5;
    transition: all 0.3s ease;
}
header {
    background: #f7f9fb;
    padding: 10px 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    z-index: 999;
}
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 20px;
}
nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}
.hamburger {
    display: none;
}
.hero {
    background: linear-gradient(to bottom right, #e5f0ff, #ffffff);
    padding: 80px 20px;
    text-align: center;
    animation: fadeIn 2s ease;
}
.hero-text h1 {
    animation: slideIn 1s ease;
    color: #003366;
}
ul {
    padding-left: 20px;
}
#preloader {
    position: fixed;
    background: #f4f6f8;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #ccc;
    border-top: 4px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}
.contact form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}
.contact form input,
.contact form textarea {
    padding: 10px;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 6px;
}
.contact form button {
    background: #003366;
    color: white;
    padding: 10px;
    font-size: 1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.3s ease;
}
.contact form button:hover {
    background: #002855;
}

/* Animations */
@keyframes spin {
    to { transform: rotate(360deg); }
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Responsive Nav */
@media (max-width: 768px) {
    nav ul {
        display: none;
        flex-direction: column;
    }
    .hamburger {
        display: block;
        cursor: pointer;
    }
}