* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

body {
    background-color: #f5f7fa;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 40px;
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #2c3e50;
}

.logo span {
    color: #27ae60;
}

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

.nav-links button {
    background: none;
    border: none;
    font-size: 16px;
    color: #2c3e50;
    cursor: pointer;
    padding: 8px 12px;
    transition: 0.3s;
}

.nav-links button:hover {
    color: #27ae60;
}

.login-btn {
    background: #27ae60;
    border: none;
    padding: 8px 18px;
    color: #fff;
    border-radius: 5px;
    cursor: pointer;
}

.login-btn:hover {
    background: #219150;
}

/* Sections */
.section {
    display: none;
    padding: 40px;
    font-size: 22px;
}