body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    color: #fff;
    line-height: 1.6;
}
.navbar {
    background: rgba(0, 0, 0, 0.8);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}
.navbar a {
    color: #fff;
    text-decoration: none;
    font-size: 1.1em;
    margin: 0 15px;
    transition: color 0.3s;
}
.navbar a:hover {
    color: #00d4ff;
}
.login-btn {
    background-color: #00d4ff;
    padding: 10px 20px;
    border-radius: 25px;
    transition: background-color 0.3s, transform 0.2s;
}
.login-btn:hover {
    background-color: #0088cc;
    transform: translateY(-2px);
}
.container {
    max-width: 1200px;
    margin: 100px auto 50px;
    padding: 0 20px;
}
.hero, .about, .login-form, .dashboard {
    text-align: center;
    padding: 40px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}
.login-form {
    max-width: 600px;
    margin: 0 auto;
}
h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: #fff;
}
p {
    font-size: 1.2em;
    max-width: 800px;
    margin: 0 auto 20px;
}
.cta-btn {
    display: inline-block;
    padding: 15px 30px;
    background-color: #00d4ff;
    color: #fff;
    text-decoration: none;
    border-radius: 25px;
    font-size: 1.2em;
    transition: background-color 0.3s, transform 0.2s;
}
.cta-btn:hover {
    background-color: #0088cc;
    transform: translateY(-2px);
}
input {
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1em;
    background: #fff;
    color: #333;
    width: 100%;
    box-sizing: border-box;
}
button {
    padding: 12px;
    background-color: #00d4ff;
    color: #fff;
    border: none;
    border-radius: 25px;
    font-size: 1.1em;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    width: 100%;
}
button:hover {
    background-color: #0088cc;
    transform: translateY(-2px);
}
.error {
    color: #d32f2f;
    margin-bottom: 15px;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: #fff;
    color: #333;
    border-radius: 10px;
    overflow: hidden;
}
th, td {
    padding: 15px;
    border: 1px solid #ccc;
    text-align: left;
}
th {
    background: #00d4ff;
    color: #fff;
}
.logout-btn {
    display: inline-block;
    padding: 12px 20px;
    background-color: #d32f2f;
    color: #fff;
    text-decoration: none;
    border-radius: 25px;
    font-size: 1.1em;
    transition: background-color 0.3s, transform 0.2s;
    margin-top: 20px;
}
.logout-btn:hover {
    background-color: #b71c1c;
    transform: translateY(-2px);
}
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        padding: 10px;
    }
    .navbar a {
        margin: 5px 0;
    }
}
@media (max-width: 600px) {
    h1 {
        font-size: 1.8em;
    }
    p, input {
        font-size: 0.9em;
    }
    .hero, .about, .login-form, .dashboard {
        padding: 20px;
    }
    table {
        font-size: 0.9em;
    }
    th, td {
        padding: 10px;
    }
}