* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    color: #333;
    min-height: 100vh;
    padding: 2rem 1rem;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    line-height: 1.5;
}

.container {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 12px 24px rgba(0,0,0,0.15);
    width: 100%;
    max-width: 720px;
    padding: 2rem 3rem;
}

header {
    margin-bottom: 2rem;
    text-align: center;
}

header h1 {
    font-weight: 900;
    font-size: 2.8rem;
    color: #4a148c;
    letter-spacing: 2px;
    margin-bottom: 0.3rem;
}

nav {
    font-weight: 600;
}

nav a {
    color: #6a11cb;
    margin: 0 1rem;
    text-decoration: none;
    transition: color 0.3s ease;
}

nav a:hover,
nav a:focus {
    color: #2575fc;
    outline: none;
}

form {
    background: #f9f9fc;
    padding: 1.5rem 2rem;
    border-radius: 12px;
    box-shadow: inset 0 0 10px #d7d7ff;
    margin-bottom: 2rem;
}

form label {
    display: block;
    margin-bottom: 0.6rem;
    font-weight: 600;
    color: #4a148c;
}

form input[type="text"],
form input[type="password"] {
    width: 100%;
    padding: 0.6rem 1rem;
    margin-bottom: 1.2rem;
    border: 2px solid #c3b6e1;
    border-radius: 12px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

form input[type="text"]:focus,
form input[type="password"]:focus {
    border-color: #6a11cb;
    outline: none;
}

form button {
    background: #6a11cb;
    color: white;
    font-weight: 700;
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 14px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
    display: block;
    margin: 0 auto;
    min-width: 140px;
}

form button:hover,
form button:focus {
    background: #2575fc;
    outline: none;
}

.error {
    color: #d32f2f;
    font-weight: 700;
    margin-top: 1rem;
    text-align: center;
}

.message {
    color: #2e7d32;
    background-color: #d0f0c0;
    border: 1.5px solid #81c784;
    padding: 0.9rem 1rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    font-weight: 600;
    text-align: center;
}

.uni-list {
    list-style: none;
    padding-left: 0;
}

.uni-list li {
    background: #f4f3ff;
    border-radius: 14px;
    box-shadow: 0 4px 10px rgb(106 17 203 / 0.15);
    margin-bottom: 1rem;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: box-shadow 0.3s ease;
}

.uni-list li:hover,
.uni-list li:focus-within {
    box-shadow: 0 6px 18px rgb(38 78 254 / 0.25);
}

.uni-list a {
    font-weight: 600;
    font-size: 1.1rem;
    color: #4a148c;
    text-decoration: none;
    flex-grow: 1;
}

.uni-list a:hover,
.uni-list a:focus {
    text-decoration: underline;
    outline: none;
}

.uni-list form {
    margin-left: 1rem;
}

.uni-list button {
    background: #d32f2f;
    border: none;
    border-radius: 12px;
    color: white;
    font-weight: 600;
    padding: 0.5rem 1.1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.uni-list button:hover,
.uni-list button:focus {
    background: #b71c1c;
    outline: none;
}

footer {
    margin-top: 3rem;
    text-align: center;
    font-size: 0.9rem;
    color: #ddd;
}

@media (max-width: 600px) {
    .container {
        padding: 1rem 1.5rem;
    }

    form button {
        width: 100%;
        padding: 1rem;
    }

    .uni-list li {
        flex-direction: column;
        align-items: flex-start;
    }

    .uni-list form {
        margin-left: 0;
        margin-top: 0.7rem;
        width: 100%;
        display: flex;
        justify-content: flex-end;
    }
}