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

body {
    background-color: #f8f9fb;
    color: #333;
}

.container {
    width: 90%;
    margin: auto;
    max-width: 1200px;
}

header {
    background: #ffffff;
    border-bottom: 1px solid #ddd;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    color: #0a1f44; /* Navy accent */
    font-size: 20px;
}

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

nav a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
}

nav a:hover {
    color: #0a1f44;
}

.hero {
    padding: 50px 0;
}

.hero p {
    margin: 15px 0;
    font-size: 18px;
    color: #555;
}

.banner-placeholder {
    margin-top: 20px;
    width: 100%;
    max-width: 1366px;
    height: auto;
}

.banner-placeholder img {
    width: 100%;
    height: auto;
    display: block;
}

.section {
    padding: 60px 0;
}

.alt-bg {
    background-color: #ffffff;
}

h2 {
    margin-bottom: 20px;
    color: #0a1f44;
}

h3 {
    margin-top: 20px;
    margin-bottom: 10px;
}

ul {
    margin-left: 20px;
}

.portfolio-grid {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.card {
    background: #ffffff;
    padding: 20px;
    border: 1px solid #ddd;
    flex: 1;
    min-width: 250px;
}

.message-container {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}

.form-area {
    flex: 1;
    min-width: 280px;
}

.result-area {
    flex: 1;
    min-width: 280px;
    background: #ffffff;
    padding: 20px;
    border: 1px solid #ddd;
}

form {
    display: flex;
    flex-direction: column;
}

input, textarea {
    margin-bottom: 15px;
    padding: 8px;
    border: 1px solid #ccc;
}

button {
    padding: 10px;
    background-color: #0a1f44;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    opacity: 0.9;
}

footer {
    text-align: center;
    padding: 20px 0;
    background: #ffffff;
    border-top: 1px solid #ddd;
    margin-top: 40px;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 10px;
    }

    .portfolio-grid {
        flex-direction: column;
    }

    .message-container {
        flex-direction: column;
    }
}