.login-container {
    max-width: 786px;
    margin: 50px auto;
    padding: 20px;
}

.login-card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.login-card .card-header {
    background: #fff;
    padding: 15px 20px;
    border-bottom: 1px solid #eee;
}

.login-card .card-header h3 {
    margin: 0;
    font-size: 1.5em;
    font-weight: 500;
    color: #333;
}

.login-card .card-body {
    padding: 30px;
}

.login-form {
    max-width: 500px;
    margin: 0 auto;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.login-form .form-control {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.login-form .form-control:focus {
    border-color: #2d78ad;
    outline: none;
    box-shadow: 0 0 0 2px rgba(45, 120, 173, 0.1);
}

.login-form .btn-primary {
    width: 100%;
    padding: 12px;
    background: #2d78ad;
    border: none;
    border-radius: 4px;
    color: white;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.login-form .btn-primary:hover {
    background: #236391;
}

.header-buttons {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.home-button {
    color: #333;
    text-decoration: none;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: color 0.3s ease;
}

.home-button:hover {
    color: #2d78ad;
    text-decoration: none;
}

.seminars-button {
    color: #333;
    text-decoration: none;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: color 0.3s ease;
}

.seminars-button:hover {
    color: #2d78ad;
    text-decoration: none;
}

.research-button {
    color: #333;
    text-decoration: none;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: color 0.3s ease;
}

.research-button:hover {
    color: #2d78ad;
    text-decoration: none;
}

.alert {
    margin-bottom: 20px;
    border-radius: 4px;
    padding: 12px 15px;
    font-size: 14px;
}

.alert-danger {
    background-color: #fff5f5;
    border-color: #feb2b2;
    color: #c53030;
}

.register-link {
    color: #2d78ad;
    text-decoration: none;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: color 0.3s ease;
}

.register-link:hover {
    color: #236391;
    text-decoration: none;
}

@media (max-width: 786px) {
    .login-container {
        margin: 20px auto;
        padding: 15px;
    }
    
    .login-card .card-body {
        padding: 20px;
    }
}