body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
    background: radial-gradient(circle at 20% 20%, #f0f7ff, #ffffff 45%, #eef6ff);
    color: #333;
    line-height: 1.6;
    text-align: center;
}

.home-hero {
    max-width: 520px;
    margin: 70px auto 30px;
    padding: 32px 28px 36px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.08);
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.8rem;
    color: #4CAF50;
    margin: 0 0 6px;
}

.subtitle {
    margin: 0 auto 22px;
    color: #555;
    font-size: 1rem;
}

.home-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 6px;
}

.container {
    flex: 1;
    margin-top: 50px;
    padding: 0 20px;
}

h1 {
    color: #333;
    margin-bottom: 20px;
    font-size: 2.5em;
}

form {
    display: inline-block;
    text-align: left;
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    width: 100%;
}

.semester-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.semester-row input[type="number"] {
    flex: 1;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-sizing: border-box;
    font-size: 16px;
}

.danger-btn {
    background-color: #d32f2f;
    color: #fff;
    width: auto;
    min-width: 40px;
    padding: 8px 10px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.danger-btn:hover {
    background-color: #b71c1c;
}

.danger-btn:active {
    background-color: #9b1515;
}

button {
    display: block;
    width: 100%;
    padding: 14px;
    font-size: 16px;
    cursor: pointer;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    transition: background-color 0.3s ease, transform 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

button:last-of-type {
    margin-bottom: 0;
}

button:hover {
    background-color: #45a049;
    transform: translateY(-2px);
}

button:active {
    background-color: #3e8e41;
    transform: translateY(0);
}

footer {
    background-color: #4CAF50;
    color: white;
    text-align: center;
    padding: 8px 0;
    position: fixed;
    bottom: 0;
    width: 100%;
    font-size: 14px;
}

@media (max-width: 600px) {
    .container {
        margin-top: 20px;
        padding: 0 10px;
    }

    h1 {
        font-size: 2em;
    }

    form {
        padding: 20px;
    }

    .semester-row {
        flex-direction: column;
    }

    .semester-row input[type="number"] {
        width: 100%;
        margin-bottom: 10px;
    }

    button {
        padding: 12px;
    }

    .home-hero {
        margin: 40px 16px 20px;
        padding: 24px 20px 28px;
    }
}